Relevant bibliographies by topics / Ultrasonic inspection

Academic literature on the topic 'Ultrasonic inspection'

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Published: 4 June 2021
Last updated: 7 September 2023

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Journal articles on the topic "Ultrasonic inspection"

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Graybeal, B. A., R. A. Walther, and G. A. Washer. "Ultrasonic Inspection of Bridge Hanger Pins." Transportation Research Record: Journal of the Transportation Research Board 1697, no. 1 (January 2000): 19–23. http://dx.doi.org/10.3141/1697-04.

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Ultrasonic inspection is currently one of the most common and reliable methods used in the inspection of hanger pins in pin-and-hanger bridge structures. Recently, a pin-and-hanger connection on a heavily traveled truck route in the Midwest showed visual indications of being deficient. Field contact ultrasonic inspections were performed on the remaining pin connections. The field inspections indicated that a number of the pins contained cracks or significant wear grooves at the pin shear planes, or both. These pins were replaced and sent to the FHWA’s Nondestructive Evaluation Validation Center for further testing in an ultrasonic immersion tank. The results of the contact and immersion tank ultrasonic studies were nearly identical. Both methods found two pins that contained transverse cracks at the level of a shear plane, with one of these cracks encompassing a majority of the pin cross section. Clearly, for the conditions found in the study, field contact ultrasonics can accurately locate defects in hanger pins.
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Song, Kyung Seok, Jae Yeol Kim, and You Hong Kim. "Non-Contact SWP Stability Estimation Using Laser-Ultrasonic Wave." Key Engineering Materials 321-323 (October 2006): 352–56. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.352.

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Contact type detection, one of UT for the detection of defects in welding area, has several weak-points. Proximity type ultrasonic inspection using laser is being studied these days to make up for the weak points of contact type ultrasonic inspection. In this paper, automatic inspection system of the welding area of spiral welding pipe has been developed, of which mechanical characteristic is better than that of circular directional pipes, and executed the proximity ultrasonic inspections using laser. The usefulness of proximity ultrasonic inspection using laser will be verified in this paper through the analysis of the inspection results.
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Saikrishna, U., K. Srinivas, and Y. L. V. D. Prasad. "Development of Guided Wave Ultrasonic Inspection Method for Thick Composite Structures." Applied Mechanics and Materials 592-594 (July 2014): 153–57. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.153.

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Ultrasonic Non-destructive testing is a well known technique for inspecting fiber reinforced composite structures however; its capability is severely limited by the high attenuation in thick and multi layer structures. Guided wave ultrasonic inspection has been reported to be useful tool for quantitative identification of composite structures. It takes advantage of tailoring / generating desired ultrasonic wave modes (Symmetric and anti-symmetric) for improved transmission through the composite structure. For this, guided waves have to be generated selectively by precisely placing transducer at an angle to the test surface. Automation of two axis fixture for transmission and reception of transducers have to be used for avoiding manual errors. The captured signals have to be processed in order to extract useful information from the received ultrasonic signals. The proposed project aims at developing automated guided wave inspection methods along with digital signal processing for generating dispersion curves for thick composited. Using test laminates with implanted defects, methodology for thick composite inspection with guided wave ultrasonic’s will be established. For this data will be captured and analyzed using Labview software.
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Arzola de la Peña, Nelson. "Economic feasibility study regarding the applicability of ultrasonic inspection of the Cuban sugar industry’s sugarcane mill shafts." Ingeniería e Investigación 26, no. 2 (May 1, 2006): 5–9. http://dx.doi.org/10.15446/ing.investig.v26n2.14731.

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This article evaluates the economic feasibility of carrying out ultrasonic inspection of sugar-mill shafts. Four alternatives are considered, including the most frequently encountered scenarios. How and when inspections are carried out is analysed, periods between inspections being established by a fatigue-crack growth propagation approach. The lifecycle cost approach was applied for economic evaluation. Operation, maintenance and energy consumption costs were thus taken into consideration. The conclusion was drawn that it is highly advisable to use high performance ultrasonic inspection. Introducing ultrasonic inspection (according to the period of time obtained by fracture mechanics model) could lead to a saving of half a million dollars per year for the Cuban sugarcane industry in the current conditions.
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Rolls-Royce MatEval Limited. "Ultrasonic inspection system." NDT & E International 25, no. 1 (January 1992): 49. http://dx.doi.org/10.1016/0963-8695(92)90141-3.

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Boychuk, A. S., I. A. Dikov, A. S. Generalov, and S. I. Yakovleva. "THE FEATURES OF NON-DESTRUCTIVE INSPECTION OF CARBON FIBER REINFORCED PLASTIC SOLID LAMINATE SAMPLES DURING LOW-CYCLIC FATIGUE TESTING." Proceedings of VIAM, no. 12 (2020): 108–15. http://dx.doi.org/10.18577/2307-6046-2020-0-12-108-115.

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The results of CFRP samples ultrasonic inspection during low-cyclic fatigue testing are given in this article. It is established that for ultrasonic pulse-echo inspection during cycling mechanical testing and after the special correction of flaw detector’s gain and inspection’s sensitivity concerning back-wall echo decreasing in compare with testing specimen is necessary.
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Moles, Michael, Noël Dubé, Simon Labbé, and Ed Ginzel. "Review of Ultrasonic Phased Arrays for Pressure Vessel and Pipeline Weld Inspections." Journal of Pressure Vessel Technology 127, no. 3 (March 29, 2005): 351–56. http://dx.doi.org/10.1115/1.1991881.

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Major improvements in weld inspection are obtained using Phased Array technology with capability for beam steering, electronic scanning, focusing, and sweeping the ultrasonic beams. Electronic scanning is much faster than raster scanning, and can optimize angles and focusing to maximize defect detection. Pressure vessel (PV) inspections typically use “top, side, end” or “top, side, TOFD” views, though other imaging is possible. Special inspections can be performed, e.g., for specific defects, or increased coverage. Defects can be sized by pulse-echo as per code, by time-of-flight Diffraction or by back diffraction. New PV inspection codes, particularly ASME Code Case 2235, permit the use of advanced ultrasonic inspection techniques. Pipeline girth weld inspections use a unique inspection approach called “zone discrimination,” and have their own series of codes. While similar equipment is used in pipeline as in PV inspections, the pipeline philosophy is to tailor the inspection to the weld profile and predicted lack of fusion defects. Pipeline displays are specifically designed for near real-time data analysis. Both ASME CC 2235 and the pipeline codes permit the use of Fitness-For-Purpose, which reduces construction costs. Overall, phased array systems meet or exceed all PV and pipeline codes.
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Hernandez, A., O. Altuzarra, V. Petuya, Ch Pinto, and E. Amezua. "A robot for non-destructive testing weld inspection of offshore mooring chains." International Journal of Advanced Robotic Systems 15, no. 3 (May 1, 2018): 172988141877053. http://dx.doi.org/10.1177/1729881418770532.

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Welding flaw detection is a key step in manufacturing many components. In offshore chains, every link is manufactured from a steel bar that is bent and the ends joined by flash butt welding. Ultrasonic inspection of the welded area is required for classification. Defects, if any, are parallel to the welded area, which do not favour detection by manual inspection with 45° beams, as per usual practice . This article reports on CIRUS, a robot developed for automatic inspection of the weld area using a combination of pulse-echo and pitch-catch ultrasonic testing. The robot kinematic structure includes global positioning, local positioning and inspection subsystems, and each subsystem design is described in detail. A data acquisition system processes ultrasonic inspection results and provides visual information for the inspector as well as traceability for quality manufacturing.
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Cao, Chong Zhen, Feng Qin Wang, Qi Fa Tian, Jia Lan Zhuang, and Feng Chun Li. "Equidirectional Umbrella Diameter Changing Mechanism for Ultrasonic Inspection of Seabed Pipelines." Advanced Materials Research 163-167 (December 2010): 2927–33. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.2927.

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Ultrasonic inspection is a key method of inspecting wall thickness flaw of seabed oil pipelines. How to lay out ultrasonic probes to fit for three inner diameter pipelines of Φ195mm, Φ247mm and Φ297mm was analyzed detailed. Diameter changing principle feasibility of ultrasonic inspection adopting 10 parallelogram mechanisms was discussed, and the key parts of structure of equidirection umbrella diameter changing mechanism were analyzed. In the end model machine experiment verified that equidirection umbrella diameter changing technology is feasible.
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Cho, Hyun, Sung Jin Song, Hak Joon Kim, Hee Jong Lee, and Sung Nam Choi. "Development of a Manipulator Free Mobile Ultrasonic C-Scan System." Key Engineering Materials 321-323 (October 2006): 1293–96. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1293.

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Ultrasonic C-scan inspections have been used in various industrial fields. Usually, conventional ultrasonic C-scan systems have several mechanical manipulating axis controlled by a computer or an electronic device. These systems are suitable for the high resolution and inspection quality. But they are too heavy and bulky to carry in general, and many industrial fields do not require higher resolution than a hundred micron order. To take care of such a need, in this study we developed an ultrasonic C-scan system that does not have any mechanical manipulator to transport ultrasonic transducers. This system, named "M-Scanner", adopts an electro-magnetic position tracking sensor instead of mechanical manipulating axes in order to trace the transducer position. Furthermore, this new system is portable and has a reasonable construction cost along with practical inspection resolution required in many industrial field inspections.
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Dissertations / Theses on the topic "Ultrasonic inspection"

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Hesse, Daniel. "Rail inspection using ultrasonic surface waves." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444161.

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Egerton, Jack Samuel. "Ultrasonic inspection of highly attenuating media." Thesis, Imperial College London, 2018. http://hdl.handle.net/10044/1/62627.

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The aim of the project was to improve the ultrasonic array inspection of high-density polyethylene (HDPE) heat-fused pipe joints of cooling water pipework that is installed in EDF Energy's nuclear power stations. Whereas ultrasound array inspection is now established for safety-critical metal components, HDPE poses a hugely challenging problem, that the ultrasound waves are heavily attenuated by the material. This impacts multiple aspects of the inspection and of the modelling that is needed to design and qualify inspection. The thesis reports a range of research that was needed to overcome this challenge. The work of the thesis has: - obtained accurate acoustic properties of HDPE that are necessary for improved simulated or real ultrasonic array imaging of HDPE pipe joints - developed a simulation technique for representing ultrasound in such inspections that has both high accuracy and efficiency - extended analytical analysis of ultrasound scattering from cylindrical voids from elastic media to general, attenuative media - used the Huygens-Fresnel principle to represent ultrasound scattering from volumetric and planar voids, to image sub-wavelength features of these defects in an ideal circular array setup, and to image angled ultrasonic array nondestructive evaluation (NDE) of potential defects occurring in HDPE pipe joints - devised an automated and antidispersive system for reducing coherent and incoherent noise in waveforms with an isolated wave reflection signal - produced an imaging and analysis method for ultrasonic array NDE that can represent defects in a refractive, reflective, and scattering environment in attenuating media, which is applied to data from the above developed simulation technique - applied much of the above imaging and analysis method to defects machined into HDPE pipe material, with an experimental ultrasonic array controller, yet with an array of limited suitability - specified parameters for ultrasonic arrays and a water-filled wedge, which are optimum for HDPE pipe joint inspection, and have been designed and built by Imasonic SAS, France, for research use at Imperial College London.
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Van, Pamel Anton. "Ultrasonic inspection of highly scattering materials." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/29423.

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Ultrasonic Non-Destructive Evaluation (NDE) relies on the scattering of waves from discontinuities, such as fractures or voids, to probe media otherwise invisible to the naked eye. Whilst this has been industrially exploited for several decades within acoustically transparent materials, many materials maintain a microstructure that causes scattering of the propagating waves. This undermines the aforementioned premise as it becomes exceedingly difficult to discern the features of interest from the scattering inherent to microstructural features, thereby limiting the range of materials which can be reliably inspected, non-destructively. Experimental investigations confirm the challenges and significant shortcomings for the inspection of future industrial components where such microstructures are desirable for their mechanical properties. It is demonstrated that the rapid increases in scattering with the insonifying frequency severely limit the achievable sensitivity of conventional ultrasound techniques. A review of the latest advances in ultrasound technology, including signal processing and imaging algorithms, explore the opportunities to exceed current limitations and advance the capability of ultrasonic NDE. Establishing these advances, and those of future approaches, requires a rigorous definition of performance. In contrast to commonly adopted strategies, a novel strategy which considers the probabilities of detection and false alarms is proposed as a valuable benchmark that can be used to make objective comparisons in terms of performance between competing algorithms. Future progress will also rely on a better scientific understanding of scattering, which can be provided by powerful modelling tools. Here, Finite Element modelling is established to be very useful; it captures the complex scattering physics and allows an investigative flexibility which can provide extremely useful insights. Whereas previous studies have often been restricted to weak scattering assumptions, the present FE modelling capability now enables the study of more complex, highly scattering environments. This is demonstrated by investigating ultrasonic arrays, where through optimising their engineering, especially in terms of their configuration, significant performance enhancements are shown to be possible. These important scientific tools have enabled the assessment of the latest imaging algorithms, the optimisation of inspection configurations, and increased our understanding of scattering phenomena. Their use in the future enables wide possibilities towards further pursuing the ultrasonic inspection of highly scattering materials.
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Gomez, Gutierrez Francisco Jose. "Ultrasonic sensing methods for sewer pipe inspection." Thesis, King's College London (University of London), 2006. https://kclpure.kcl.ac.uk/portal/en/theses/ultrasonic-sensing-methods-for-sewer-pipe-inspection(bbd5712a-4856-47ed-af76-4ea21eda052f).html.

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Valdes, Abel. "Development of laser ultrasonic and interferometric inspection system for high-volume on-line inspection of microelectronic devices." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29685.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.
Committee Chair: Ume, I. Charles; Committee Member: Kalaitzidou, Kyriaki; Committee Member: Mayor, J. Rhett. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Moya, Jorge A. Salcedo. "Ultrasonic inspection of underwater piping system with thick coatings." Connect to resource, 1994. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=osu1260632892.

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Milne, Katherine Anne. "Studies into the Vibro-Enhancement of Penetrant Inspection and the Ultrasonic Inspection of Diffusion Bonds." Thesis, Imperial College London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516757.

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Palanisamy, Suresh, and n/a. "Ultrasonic inspection of gas porosity defects in aluminium die castings." Swinburne University of Technology. Industrial Research Institute Swinburne, 2006. http://adt.lib.swin.edu.au./public/adt-VSWT20060828.103450.

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This thesis documents a PhD research program undertaken at Swinburne University of Technology between the years 2000 and 2004. The research was funded by the Cooperative Research Centre for Cast Metals Manufacturing and was undertaken in collaboration with Nissan Casting Plant Australia Pty Ltd and the Ford Motor Company Australia Limited. This thesis reports on the investigation of the possibility of using an ultrasonic sensing-based, non-destructive testing system to detect gas porosity defects in aluminium die casting parts with rough surfaces. The initial intention was to develop a procedure to obtain ultrasonic signals with the maximum possible amplitude from defects within the rough surface areas of the castings. A further intention was to identify defects with the application of a suitable signal processing technique to the raw ultrasonic signal. The literature review has indicated that ultrasonic techniques have the potential to be used to detect subsurface defects in castings. The possibility of classifying very weak ultrasonic signals obtained from rough surface sections of castings through a neural network approach was also mentioned in the literature. An extensive search of the literature has indicated that ultrasonic sensing techniques have not been successfully used to detect sub-surface defects in aluminium die castings with rough surfaces. Ultrasonic inspection of castings is difficult due to the influence of microstructural variations, surface roughness and the complex shape of castings. The design of the experimental set-up used is also critical in developing a proper inspection procedure. The experimental set-up of an A-scan ultrasonic inspection rig used in the research is described in this thesis. Calibration of the apparatus used in the inspection rig was carried out to ensure the reliability and repeatability of the results. This thesis describes the procedure used to determine a suitable frequency range for the inspection of CA313 aluminium alloy castings and detecting porosity defects while accommodating material variations within the part. The results obtained from ultrasonic immersion testing indicated that focused probes operating at frequencies between 5 MHz and 10 MHz are best suited for the inspection of castings with surface roughness Ra values varying between 50 [micro milli] and 100 [micro milli]. For the purpose of validating the proposed inspection methodology, gas porosity defects were simulated through side-drilled holes in the in-gate section of selected sample castings. Castings with actual porosity defects were also used in this research. One of the conclusions of this research was that it was extremely difficult to detect defects in castings with surface roughness above 125 [micro milli]. Once the ultrasonic signal data was obtained from the sample aluminium die castings with different surface roughness values ranging from 5 [micro milli] to 150 [micro milli] signal analysis was carried out. Signal feature extraction was achieved using Fast Fourier Transforms (FFT), Principal Component Analysis (PCA) and Wavelet Transforms (WT) prior to passing the ultrasonic signals into a neural network for defect classification. MATLAB tools were used for neural network and signal pre-processing analysis. The results indicated that poor classification (less than 75%) was achieved with the WT, PCA and combination of FFT/PCA and WT/PCA pre-processing techniques for rough surface signals. However, the classification of the signals pre-processed with the combination of WT/FFT, FFT/WT and FFT/WT/PCA classifiers provided much better classification of more than 90% for smooth surface signals and 78% to 84% for rough surface signals. The results obtained from ultrasonic testing of castings with both real and simulated defects were validated with X-ray analysis of the sample castings. The results obtained from this research encourage deeper investigation of the detection and characterisation of sub-surface defects in castings at the as-cast stage. Implications for the industrial application of these findings are discussed and directions for further research presented in this thesis.
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Palanisamy, Suresh. "Ultrasonic inspection of gas porosity defects in aluminium die castings." Australasian Digital Thesis Program, 2006. http://adt.lib.swin.edu.au/public/adt-VSWT20060828.103450.

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Thesis (PhD) - Swinburne University of Technology, Industrial Research Institute Swinburne - 2006.
A thesis submitted to the Industrial Research Institute Swinburne, Swinburne University of Technology in fulfilment of the requirements to the degree of Doctor of Philosophy, 2006. Typescript. Includes bibliographical references (p. 199-211).
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Long, Robert. "Improvement of ultrasonic apparatus for the routine inspection of concrete." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343846.

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Books on the topic "Ultrasonic inspection"

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Schramm, Raymond E. Ultrasonic railroad wheel inspection using EMATS. Washington, DC: National Institute of Standards and Technology, 1989.

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Rose, Joseph L. Ultrasonic F-scan inspection of composite materials. Lakehurst, N.J: Naval Air Engineering Center, 1985.

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T, Kundu, ed. Advanced ultrasonic methods for material and structure inspection. London, UK: ISTE, 2006.

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Welding, International Institute of. Automated ultrasonic weld inspection: Guidance on the merits, performance requirements, selection and applications of automated ultrasonic inspection for welds. Northampton: British Institute of Non-Destructive Testing, 1989.

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Brook, Mark V. Ultrasonic Inspection Technology Development and Search Unit Design. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118104781.

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Kundu, Tribikram, ed. Advanced Ultrasonic Methods for Material and Structure Inspection. London, UK: ISTE, 2007. http://dx.doi.org/10.1002/9780470612248.

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V, Harris R., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Systems Research., and Pacific Northwest Laboratory, eds. Evaluation of computer-based ultrasonic inservice inspection systems. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1994.

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V, Harris R., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Systems Research., and Pacific Northwest Laboratory, eds. Evaluation of computer-based ultrasonic inservice inspection systems. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1994.

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R, Doctor S., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering Technology., and Pacific Northwest National Laboratory (U.S.), eds. Piping inspection round robin. Washington, DC: Division of Engineering Technology, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1996.

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R, Doctor S., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering Technology., and Pacific Northwest National Laboratory (U.S.), eds. Piping inspection round robin. Washington, DC: Division of Engineering Technology, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1996.

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Book chapters on the topic "Ultrasonic inspection"

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Samaitis, Vykintas, Elena Jasiūnienė, Pawel Packo, and Damira Smagulova. "Ultrasonic Methods." In Structural Health Monitoring Damage Detection Systems for Aerospace, 87–131. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72192-3_5.

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AbstractUltrasonic inspection is a well recognized technique for non-destructive testing of aircraft components. It provides both local highly sensitive inspection in the vicinity of the sensor and long-range structural assessment by means of guided waves. In general, the properties of ultrasonic waves like velocity, attenuation and propagation characteristics such as reflection, transmission and scattering depend on composition and structural integrity of the material. Hence, ultrasonic inspection is commonly used as a primary tool for active inspection of aircraft components such as engine covers, wing skins and fuselages with the aim to detect, localise and describe delaminations, voids, fibre breakage and ply waviness. This chapter mainly focuses on long range guided wave structural health monitoring, as aircraft components require rapid evaluation of large components preferably in real time without the necessity for grouding of an aircraft. In few upcoming chapters advantages and shortcommings of bulk wave and guided wave ultrasonic inspection is presented, fundamentals of guided wave propagation and damage detection are reviewed, the reliability of guided wave SHM is discussed and some recent examples of guided wave applications to SHM of aerospace components are given.
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Salerno, A., D. Wu, G. Busse, and J. Rantala. "Thermographic Inspection with Ultrasonic Excitation." In Review of Progress in Quantitative Nondestructive Evaluation, 345–52. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5947-4_45.

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Fujinaga, Shigeki, Eizo Tsuda, and Hiroshi Imafuku. "The Ultrasonic Inspection Robot System." In Advanced Robotics: 1989, 269–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83957-3_19.

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Senni, Luca, Luigi Battaglini, Pietro Burrascano, Stefano Laureti, and Marco Ricci. "Industrial Applications: Ultrasonic Inspection of Large Forgings." In Ultrasonic Nondestructive Evaluation Systems, 245–58. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10566-6_9.

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Crawford, Susan L., Michael T. Anderson, Aaron A. Diaz, Michael R. Larche, Matthew S. Prowant, and Anthony D. Cinson. "Ultrasonic Evaluation and Imaging." In Integrated Imaging and Vision Techniques for Industrial Inspection, 393–412. London: Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-6741-9_13.

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de Vareilles, O., J. P. Giraud, and F. Lasserre. "High Performance Ultrasonic Inspection of Tubes." In Review of Progress in Quantitative Nondestructive Evaluation, 1903–8. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0383-1_249.

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Ogilvy, J. A. "Modelling Ultrasonic Inspection of Rough Defects." In Review of Progress in Quantitative Nondestructive Evaluation, 39–46. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-0817-1_5.

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Moyer, M. W. "Ultrasonic Inspection of Beryllium Weld Samples." In Review of Progress in Quantitative Nondestructive Evaluation, 1355–61. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5772-8_174.

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Sermon, Bradley W., and William J. Murri. "A Multi-Parameter Ultrasonic Inspection Technique." In Nondestructive Characterization of Materials VI, 509–16. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2574-5_64.

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Falsetti, Robert V. "Ultrasonic Inspection of Acoustically “Noisy” Materials." In Review of Progress in Quantitative Nondestructive Evaluation, 2399–404. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1987-4_307.

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Conference papers on the topic "Ultrasonic inspection"

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Chen, Shili, Guangde Song, Shijiu Jin, and Xianglin Zhan. "The Design of an Ultrasonic Phased Array System on Pipelines’ Weld Inspection." In 2004 International Pipeline Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ipc2004-0719.

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Phased arrays generate ultrasonic waves by using recisely-defined time delays for each element in an ultrasonic array group, this permits constructive and destructive interference of the wavefronts to form the pre-defined beam. So, ultrasonic phased arrays are well suited to weld inspections. First, beams can be multiplexed across the array, in what is called “electronic scanning”. This permits very rapid inspections of components, typically an order of magnitude faster than a single transducer raster scan. Second, the beam can be swept through a range of angles without moving the array; this is called “beam steering”, and the inspections are typically called “azimuthal” scans or “sectorial” scans. Before weld inspecting, the time delays between elements were computed using a specific model and compared to experimental delays obtained using through transmission tests. This paper describes the application of phased array on pipelines’ weld inspection. The detail hardware designs of linear phased arrays system and the summary of system performance are presented. This inspection system includes eight ultrasonic signal transmitting and receiving circuit units, which are used to control time sequence of ultrasonic beam and select channel used for waves construction, and amplify the received ultrasonic signal. Each unit is connected with 16 probe elements (total 128 elements in this system), and can receive 4-way ultrasonic signals (channel selection is done by RF switching). Additional performance is gained by intensively using FPGA (Field Programmable Gate Arrays) technology for memory and delay counters. Since the working frequency or FPGA is 100MHz, the delay time less than 10 ns is realized by analogue delay line. This system not only has the functions of conventional ultrasonic inspector, but also can display the defect shape and its size on the screen.
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Herzog, Pamela G., Vincent Lupien, James T. Miller, John J. Selman, and Michael Moles. "Inspection of Fastener Holes Using Ultrasonic Phased Arrays." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/nde-25815.

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Abstract An Air Force Aging Aircraft Project was initiated to identify a suitable replacement for the Autoscan. The Autoscan is a unique piece of equipment that was originally identified for specific inspections for detection of first-layer, faying surface fatigue cracks (.030″ and larger) around fastener holes beneath the fastener heads, without removal of the fastener. The currently inspected parent material ranges from .125 to .3 inches thick, 2024T3 or 7075-T73 aluminum. Potential also exists for replacing other aging inspection equipment such as the Rotoscan. A secondary objective was to evaluate the feasibility of expanding the inspection capabilities to detect corrosion as well as cracks. A Trade Study was conducted initially to consider existing technologies available, trade-offs, and technology insertion in order to meet the required performance parameters. The trade study showed Phased Array Ultrasonics to have the greatest potential, so it was chosen as the inspection method to pursue. Using phased arrays, a novel inspection technique for rapidly and reliably inspecting the area around fastener holes for cracks and corrosion has been developed with no moving parts. Specially designed probes are used for the aircraft inspections. This design consists of a three-dimensional matrix of 504 ultrasonic elements on a cone that encircles the fastener head. The two-dimensional arrangement of elements permits deflection of the ultrasonic beam in three dimensions. Full circumferential scans are performed by programming the phased array focal laws to scan 360° of the fastener holes, using a combination of the following scan patterns: pulse-echo at 45° incident on the crack, pulse-echo at 90°, pitch-catch, plus local scanning. This capability allows flexible coverage of the fastener hole and surrounding area, again with no moving parts. Additionally, the beam deflection capability means that one probe is adaptable to a wide range of fastener diameters and skin thickness. Several conical sub-arrays were built to evaluate the feasibility of the concept experimentally. The experimental results along with numerical modeling were used to determine optimal values for inner and outer radii of the cone, angle of the cone, number of elements and arrangement of the elements. A complete prototype conical array was subsequently built. The final portion of this project includes developing the specific inspection procedures, and performing a Probability of Detection study (POD) developed by the FAA’s Airworthiness Assurance Nondestructive Tested Validation Center at Sandia National Laboratory.
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Wang, Hongbo, Chunguang Xu, and Yao Xu. "Ultrasonic inspection of complex composites." In 2013 Far East Forum on Nondestructive Evaluation/Testing: New Technology & Application (FENDT). IEEE, 2013. http://dx.doi.org/10.1109/fendt.2013.6635530.

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Hinders, Mark K. "Ultrasonic Inspection of Thin Multilayers." In REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION. AIP, 2005. http://dx.doi.org/10.1063/1.1916800.

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Moles, Michael D. C., Fre´de´ric Jacques, and Noe¨l Dube´. "Pressure Vessels Inspections Using Ultrasonic Phased Arrays." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-1847.

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Phased arrays offer significant technical advantages for weld inspections over conventional ultrasonics. The phased array beams can be steered, scanned, swept and focused electronically. Beam steering permits the selected beam angles to be optimized ultrasonically by orienting them perpendicular to the predicted defects, especially Lack of Fusion. Electronic (linear) scanning permits very rapid coverage of the welds. Beam steering (usually called sectorial or azimuthal scanning) can be used for mapping welds at appropriate angles to optimize Probability of Detection of defects. Electronic focusing permits optimizing the beam shape and size at the expected defect location, also to optimize Probability of Detection. Overall, the use of phased arrays permits optimizing defect detection while minimizing inspection time. The paper describes the application of phased arrays for inspecting pressure vessel welds. Phased arrays offer significant practical advantages over conventional automated inspections. Thick section weld inspections typically use the established “top, side, end” or “top, side, TOFD” views of the weld. Other displays can be used, e.g. strip charts for zone discrimination scanning of narrow gap welds. Special inspections can be easily performed with phased arrays, e.g. additional beams for extra coverage, multiple angles or inspection set-ups simultaneously, or special scans such as tandem probes. Different delivery systems and instrumentation can be assembled for any required scan. Fitness-For-Service inspections requiring high PoD and accurate sizing can be performed using upscale systems. These phased array inspections can be tailored to any known code requirements.
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Goode, G. E. "The ultrasonic inspection of rotors from the bore using an automated ultrasonic inspection system." In International Conference on Life Management of Power Plants. IEE, 1994. http://dx.doi.org/10.1049/cp:19941100.

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Moles, Michael, and Simon Labbe´. "Automated Ultrasonic Inspection of Pressure Vessel Welds." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2810.

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ASME Code Case 2235 now permits automated ultrasonic testing (AUT) instead of radiography for vessels 0.5” (12.7 mm) or greater. Ultrasonic testing has significant advantages over radiography: no safety hazard so no disruption of production; inspection as soon as component cools; rapid feedback; defect vertical sizing for Fitness-For-Purpose applications; tailored inspections. ASME CC 2235 permits a variety of inspection techniques based on pulse-echo and Time-Of-Flight Diffraction (TOFD), provided a Performance Demonstration is achieved. This paper describes a number of AUT systems which fulfill the ASME code case. These AUT systems range from a portable phased array system (Omniscan) for low cost and convenience, through conventional systems based on TOFD (μ-Tomoscan), general phased array systems (Tomoscan III) to premium systems with multiple NDE approaches. With such a variety of technologies and costs, AUT systems can be tailored to the client’s needs.
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Pettigrew, I. G. "Advanced Ultrasonic Inspection of HDPE Welds." In Offshore Technology Conference-Asia. Offshore Technology Conference, 2014. http://dx.doi.org/10.4043/25065-ms.

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Pettigrew, I. G. "Advanced Ultrasonic Inspection of HDPE Welds." In Offshore Technology Conference-Asia. Offshore Technology Conference, 2014. http://dx.doi.org/10.2118/25065-ms.

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Jin-Gyum Kim, Sunghee Yoon, Jooho Lee, and Kyung-Young Jhang. "Laser ultrasonic inspection in ablation regime." In 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing (FENDT). IEEE, 2014. http://dx.doi.org/10.1109/fendt.2014.6928234.

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Reports on the topic "Ultrasonic inspection"

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Teitsma and Shuttleworth. PR-004-03127-R01 Gas Coupled Ultrasonic Pipeline Inspection. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), January 2008. http://dx.doi.org/10.55274/r0010897.

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The gas coupled ultrasonics (GCUS) project aims to develop a method for inspecting gas pipelines using a modification of the standard ultrasonic method that does not require a liquid couplant. Ultrasonic inspection is the highest accuracy inspection method readily available for measuring remaining wall thickness and measures it directly rather than inferring it from measurements of metal loss as occurs with other methods, for example MFL. Traditional ultrasonic methods require a liquid couplant between the transducer and the wall that, although it has been done, requires the unwanted introduction of a liquid in a gas pipeline for gas pipeline inspection. The problem with using gas as a couplant is that, even at high pressure, very little ultrasonic energy is transmitted into the pipe wall, most of it being reflected back to the transducer. The result is a huge signal from the front wall that masks the tiny signals from the back wall unless the transducer is highly damped, causing rapid ring down. Early requirements for a successful transducer were 80 dB ring down in 2 microseconds and electronics that could handle a dynamic range of 120 dB.
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Thomas, G. Ultrasonic Inspection Of The LTAB Floor. Office of Scientific and Technical Information (OSTI), July 2001. http://dx.doi.org/10.2172/15013557.

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Teitsma. L52095 Gas Coupled Ultrasonic Pipeline Inspection. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), September 2003. http://dx.doi.org/10.55274/r0011105.

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Magnetic Flux Leakage (MFL) pipe inspection devices ("pigs") measure wall loss in a gas pipeline, but not the remaining wall thickness that determines the remaining strength. In addition, the precision of MFL tools is limited to 10% of the wall thickness, and the technology cannot find cracks, including stress corrosion cracking. For pipeline operators, the 10% limit means extra digs are required to ensure that all severe corrosion has been found. Another drawback is that this inspection technique offers little ability to monitor corrosion growth rates to determine where mitigation is effective and where it needs to be improved. Ultrasonic inspection has found cracks and measures the remaining wall thickness with a precision of a few percent. However, ultrasonic inspection currently requires putting a liquid couplant in a gas pipeline. Transducers specialized for inspection in high-pressure gas and specialized inspection methods can eliminate the need for a liquid couplant, bringing the advantages of ultrasonic inspection to gas pipelines. We have advanced the technique to where it is now reliable enough to measure full wall thickness for calibrating MFL pigs, and measuring corroded areas in the lab.
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Lozev and Spencer. L52023 Inspection of Welds in Thin-Wall Pipe Using Mechanized Ultrasonic Inspection. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), August 2003. http://dx.doi.org/10.55274/r0011117.

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Generally, the inspection of welds in pipes with a wall thickness less than 6 mm is performed using radiography.� Because radiography is very sensitive to the orientation of planar weld defects, these types of defects often go undetected.� In contrast, ultrasonic testing (UT) offers a better solution for detecting and sizing of these defects. In this project a method to inspect welds in thin-walled pipe less than 6-mm thick using mechanized ultrasonic weld inspection was developed.�The project investigated the application of time-based high-frequency (up to 15 MHz) single/multi-probe techniques and phased-array (PA) technology, multiple-skip time-of-flight diffraction (TOFD), and shear horizontal (SH) waves inspection as possible solutions.
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Harris, R. V. Jr, L. J. Angel, S. R. Doctor, W. R. Park, G. J. Schuster, and T. T. Taylor. Evaluation of computer-based ultrasonic inservice inspection systems. Office of Scientific and Technical Information (OSTI), March 1994. http://dx.doi.org/10.2172/10144011.

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Pfluger, D. C. Double-shell tank ultrasonic inspection plan. Revision 1. Office of Scientific and Technical Information (OSTI), September 1994. http://dx.doi.org/10.2172/10189595.

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Heasler, P. G., T. T. Taylor, J. C. Spanner, S. R. Doctor, and J. D. Deffenbaugh. Ultrasonic inspection reliability for intergranular stress corrosion cracks. Office of Scientific and Technical Information (OSTI), July 1990. http://dx.doi.org/10.2172/6888871.

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Wiersma, B. Review of High Level Waste Tanks Ultrasonic Inspection Data. Office of Scientific and Technical Information (OSTI), March 2006. http://dx.doi.org/10.2172/890148.

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Author, Unknown. DTRS56-02-T-0002 Pipeline Inspection Technologies Demonstration Report. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), May 2001. http://dx.doi.org/10.55274/r0011928.

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The purpose of this assessment is to help identify promising inspection technologies best suited for further development as part of an integrated teaming effort between the robotic platform and sensor developers. This document is not intended to provide a detailed analysis of each technology's performance or to rate their performance relative to one another. Technologies discussed include: Shear Horizontal Electromagnetic Acoustic Transducer (EMAT) Remote Field Eddy Current (RFEC) Collapsible Remote Field Eddy Current (CRFEC) Nondestructive Ultrasonic Measurement Permanent Magnet Eddy Current Multi-purpose Deformation Sensor Dual Magnetization MFL Guided Wave Ultrasonics
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Spanner, J., S. Doctor, T. Taylor, and J. Muscara. Qualification process for ultrasonic testing in nuclear inservice inspection applications. Office of Scientific and Technical Information (OSTI), March 1990. http://dx.doi.org/10.2172/7228750.

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