Статті в журналах: "Flaw detector"

1

Hocking NDT Ltd. "Digital ultrasonic flaw detector." NDT International 22, no. 6 (December 1989): 380. http://dx.doi.org/10.1016/0308-9126(89)91257-1.

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2

Hocking NDT Ltd. "Digital ultrasonic flaw detector." NDT & E International 22, no. 6 (December 1989): 380. http://dx.doi.org/10.1016/0963-8695(89)90693-2.

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3

Golubenko, P. V. "Eddy-current flaw detector." Metallurgist 34, no. 7 (July 1990): 147–48. http://dx.doi.org/10.1007/bf00748760.

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4

Wang, Geng Zhu. "A Stenciling Delay System for Steel Plate Ultrasonic Flaw Detection Process." Advanced Engineering Forum 2-3 (December 2011): 527–30. http://dx.doi.org/10.4028/www.scientific.net/aef.2-3.527.

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In the process of steel plate ultrasonic flaw detection, once the instrumentation discovers the flaw, a sign is stenciled in the vertical direction of the flaw, because there is a distance between the detector and stenciling, an effective method must be applied to reasonably control the stenciling, in order to achieve the precise stenciling. Based on characteristics of the steel plate flaw detection process, the delay distance between each group of detectors and stenciling has been analyzed, simultaneously based on the flaw detection speed, stenciling delay data has obtained. Stenciling delay structure is developed using the computer software technique, instead of hardware control mode, software algorithm is carried out to design, which has achieved the goal of convenience application and precise orientation.

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5

Loskutov, V. E. "Magnetic pipe flaw detector ДМТП". Russian Journal of Nondestructive Testing 44, № 4 (квітень 2008): 290–95. http://dx.doi.org/10.1134/s1061830908040098.

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6

Wells Krautkramer. "Documentation software for flaw detector." NDT International 22, no. 6 (December 1989): 380. http://dx.doi.org/10.1016/0308-9126(89)91258-3.

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7

Staveley NDT Technologies. "Mid-range ultrasonic flaw detector." NDT International 22, no. 5 (October 1989): 317. http://dx.doi.org/10.1016/0308-9126(89)91544-7.

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8

Ivashchenko, K. A., A. L. Khlyunev, and S. B. Bosik. "Digital eddy current flaw detector." NDT International 23, no. 6 (December 1990): 357. http://dx.doi.org/10.1016/0308-9126(90)90868-o.

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9

Wells Krautkramer. "Documentation software for flaw detector." NDT & E International 22, no. 6 (December 1989): 380. http://dx.doi.org/10.1016/0963-8695(89)90694-4.

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10

Staveley NDT Technologies. "Mid-range ultrasonic flaw detector." NDT & E International 22, no. 5 (October 1989): 317. http://dx.doi.org/10.1016/0963-8695(89)91274-7.

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11

NNDTC. "PC-based ultrasonic flaw detector." NDT & E International 24, no. 5 (October 1991): 277–78. http://dx.doi.org/10.1016/0963-8695(91)90506-x.

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12

Gobov, Yu L., G. S. Korzunin, V. E. Loskutov, B. V. Patramanskii, A. E. Kuskov, and V. V. Lopatin. "In-tube demagnetizing pig flaw detector." Russian Journal of Nondestructive Testing 45, no. 1 (January 2009): 1–6. http://dx.doi.org/10.1134/s106183090901001x.

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13

Hitachi. "High precision portable ultrasonic flaw detector." NDT International 22, no. 5 (October 1989): 316. http://dx.doi.org/10.1016/0308-9126(89)91540-x.

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14

Hitachi. "High precision portable ultrasonic flaw detector." NDT & E International 22, no. 5 (October 1989): 316. http://dx.doi.org/10.1016/0963-8695(89)91270-x.

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15

Wang, Yan, Li Jun Zhang, Xiao Han, and Zhao Yin. "Design of the Software System of a Digital Axle Detector." Advanced Materials Research 532-533 (June 2012): 908–13. http://dx.doi.org/10.4028/www.scientific.net/amr.532-533.908.

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Axle detection is an important way to ensure the safety of rail transport. To meet the requirements of the Ministry of Railways, ZTY-1 type digital ultrasonic flaw detector is developed. It is designed based on VC++ 6.0 and runs on the PC system. The detector consists of five functional parts, which are flaw detecting, daily performance checking, quarterly performance checking, probe test and data management. In this paper, design of the detector’s software system is introduced, as well as solutions to some problems such as waveform flicker, double detection, waveform playback and document print.

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16

Drury, J. C. "Ultrasonics: Part 6. Pulse-echo flaw detector." Insight - Non-Destructive Testing and Condition Monitoring 47, no. 4 (April 1, 2005): 236–38. http://dx.doi.org/10.1784/insi.47.4.236.63155.

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17

Huber, W. D. "Single-pass flaw detector for magnetic media." IEEE Transactions on Magnetics 30, no. 6 (1994): 4149–51. http://dx.doi.org/10.1109/20.334018.

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18

Kabushiki Kaisha Kobe Seiko Sho, K. Aburatani, and T. Shozaki. "Ultrasonic flaw detector for a wiredrawing apparatus." NDT & E International 24, no. 6 (December 1991): 321. http://dx.doi.org/10.1016/0963-8695(91)90015-u.

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19

Kabushiki Kaisha Kobe Seiko Sho. "Wiredrawing apparatus including an ultrasonic flaw detector." NDT & E International 24, no. 6 (December 1991): 322. http://dx.doi.org/10.1016/0963-8695(91)90022-u.

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20

Ermolov, I. N. "How I test an ultrasonic flaw detector." Russian Journal of Nondestructive Testing 36, no. 3 (March 2000): 237–39. http://dx.doi.org/10.1007/bf02759336.

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21

Киреев and Andrey Kireev. "Equivalent Sensitivity Setting During Ultrasonic Inspection of Steel Butt Welded Joints." NDT World 19, no. 3 (September 20, 2016): 74–76. http://dx.doi.org/10.12737/21175.

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Introduction. The echo-pulse technique is commonly used for welded joints ultrasonic testing. The first step of the technique is setting the ultrasonic flaw detector sensitivity. For this purpose NDT-operators usually use calibration blocks with a flat cylindrical or hemispherical reflectors, which are to be manufactured and metrologically certified for every weld joint size and transducer angle. The objective of this work was to develop a sensitivity setting technique using the CO-2 reference block, which could take into account the equivivalent area of the flat cilindrical reflector (as a model of a point-planar flaw) and the equivivalent area of the hemispherical reflector (as a model of a point-bulk flaw). Method. The paper analyzes methods of ultrasonic flaw detector sensitivity setting while testing of butt welded joints with the use of samples and reference reflectors of different types. The theoretical studies using beam acoustics and the Kirchhoff method, were carried out. Results. The analytical dependences for calculation of the sensitivity correction factors have been presented for the equivalent sensitivity setting on a side cylindrical reflector of 6 mm in diameter with the center line location at a depth of 15 mm within the CO-2 reference block. For automation of calculations the NDTRT-20.01 software has been developed and implemented. The sensitivity setting procedures with the use of the NDTRT-20.01 software and without it are given. Discussion. The offered technique has the following advantages: for different thicknesses of welded sheets with different requirements to the minimum acceptable defect the only CO-2 reference block is needed; the sensitivity can be adjusted on both the flat cilindrical reflector and the hemispherical reflector; the NDTRT-20.01 software allows automating the calculations of sensitivity correction factors and flaw detector sweep parameters.

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22

Antipov, A. G., and A. A. Markov. "Flaw detector magnetizer with wheels as magnetic poles." Journal of Physics: Conference Series 1636 (September 2020): 012013. http://dx.doi.org/10.1088/1742-6596/1636/1/012013.

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23

Ivashchenko, K. A., A. L. Khlyunev, and S. V. Bosik. "A digital eddy-current flaw detector (In Russian)." NDT International 23, no. 6 (December 1990): 357. http://dx.doi.org/10.1016/0308-9126(90)90862-i.

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24

Slyadnev, A. M. "ACOUSTIC NON-DESTRUCTIVE TESTING OF MULTILAYERED STRUCTURES FROM PCM DURING THE PRODUCTION AND OPERATION OF AVIATION TECHNIQUE." Kontrol'. Diagnostika, no. 256 (2019): 36–49. http://dx.doi.org/10.14489/td.2019.10.pp.036-049.

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Considered the use in the production of aviation equipment (airplanes and helicopters), polymer composites differing in enhanced operational and technological properties, such as strength, rigidity, level of working temperatures, etc. Examples are given of using newer gliders in multilayer structures MS-21 aircraft and Mi-38 helicopter of modern composite materials. The review of defects of multilayer structures made of polymer composite materials arising at the stage of manufacturing, storage, transportation and operation of aircraft, and low-frequency methods of their control is presented. It is noted that the main of low-frequency control methods are the impedance method and the method of free oscillations proposed by domestic scientists.The principle of operation of the first portable multifunctional computerized pulsed flaw detector DAMI-C09, combining impedance, impact and eddy current ND methods, is described. It is noted that the flaw detector can be used for manual and automated, as part of a robotic complex, to identify bundles, nonglues and other violations of the integrity of composites, honeycomb structures and glued structures, to determine corrosion centers, surface and internal defects in non-ferromagnetic materials. A feature of the flaw detector is the simplified preparation process for work due to the automated mode of tuning the signal in amplitude or phase using a spectrum analyzer, documenting the monitoring results with the ability to transfer to a computer and subsequent processing with the help of a special APM of the Flaw Detector. Examples of the effective use of the flaw detector in the production and operation of aviation equipment are given.

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25

Tian, Jie, Pu-Fan Zhu, Yang-Yang Wang, and Hong-Fei Guo. "Experimental study and application of magnetic bridge double-loop main flux detection method." Insight - Non-Destructive Testing and Condition Monitoring 62, no. 2 (February 1, 2020): 98–103. http://dx.doi.org/10.1784/insi.2020.62.2.98.

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In this study, to perform online non-destructive testing (NDT) of mine wire rope damage and achieve effective and accurate flaw detection results, a magnetic bridge double-loop main flux detection method was proposed and the testing equipment was developed. The flaw detection magnetic field was simulated using a Maxwell module. The magnetic field intensity distribution and the vector direction were compared and then analysed. The practicality and feasibility of the detection method were verified by field experiments. The results show that the magnetic bridge double-loop main flux detection method is highly practicable and produces highly accurate test results. The mine wire rope non-destructive flaw detector developed using this method presents a stable detection signal and an obvious damage characteristic signal, which is more consistent with the requirements of wire rope damage detection under various working conditions. This technology has a wide range of applications.

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26

Petryk, V. F., A. G. Protasov, R. M. Galagan, A. V. Muraviov, and I. I. Lysenko. "Smartphone-Based Automated Non-Destructive Testing Devices." Devices and Methods of Measurements 11, no. 4 (December 17, 2020): 272–78. http://dx.doi.org/10.21122/2220-9506-2020-11-4-272-278.

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Currently, non-destructive testing is an interdisciplinary field of science and technology that serves to ensure the safe functioning of complex technical systems in the face of multifactorial risks. In this regard, there is a need to consider new information technologies based on intellectual perception, recognition technology, and general network integration. The purpose of this work was to develop an ultrasonic flaw detector, which uses a smartphone to process the test results, as well as transfer them directly to an powerful information processing center, or to a cloud storage to share operational information with specialists from anywhere in the world.The proposed flaw detector consists of a sensor unit and a smartphone. The exchange of information between the sensor and the smartphone takes place using wireless networks that use "bluetooth" technology. To ensure the operation of the smartphone in the ultrasonic flaw detector mode, the smartphone has software installed that runs in the Android operating system and implements the proposed algorithm of the device, and can serve as a repeater for processing data over a considerable distance (up to hundreds and thousands of kilometers) if it necessary.The experimental data comparative analysis of the developed device with the Einstein-II flaw detector from Modsonic (India) and the TS-2028H+ flaw detector from Tru-Test (New Zealand) showed that the proposed device is not inferior to them in terms of such characteristics as the range of measured thicknesses, the relative error in determining the depth defect and the object thickness. When measuring small thicknesses from 5 to 10 mm, the proposed device even surpasses them, providing a relative measurement error of the order of 1 %, while analogues give this error within 2–3 %.

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27

Кисляковский, Oleg Kislyakovsky, Чистякова, Olga Chistyakova, Тарабрин, Vladimir Tarabrin, Кононов, and Dmitriy Kononov. "Automatic Flaw Detector Channels Sensitivity Adjustment with the Use of an Adaptive Threshold." NDT World 19, no. 3 (September 20, 2016): 77–80. http://dx.doi.org/10.12737/21179.

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Introduction. With high-speed total ultrasonic testing (UT) of the rails, the urgent task is to provide the required testing sensitivity under the impact of a significant number of adverse factors caused by the following reasons:  unstable acoustic contact;  incorrect flaw detector channel settings due to underskilled staff;  a misalignment, for example when passing a small radius curve or when rails have significant lateral wear. The listed factors lead to level changing of echo signals within a wide dynamic range as well as to echo amplitudes ratio changing of useful and noise signals. In contrast to manual testing when an operator has the possibility of multiple scanning, total rails testing by a mobile diagnostic system is fulfilled by only a single scan. The objective of the work was to develop an optimal algorithm of flaw detector channels sensitivity adjustment and formulate the reasonable requirements for a mathematical model and hardware. Method. Theoretical researches and experimental work were conducted and resulted in the development of a multichannel flaw detector for inspection of rails by mobile means. The analysis of different mathematical models has enabled the optimal algorithm for automatic channels sensitivity adjustment to be developed. Results. The developed algorithm has allowed minimizing the impact of the negative factors and compensating the sensitivity to the level that enables high-speed single-scan rails testing to be fulfilled and maximum information at a high level of reliability to be recorded. Implementation of the adaptive threshold principle has made it possible to develop and offer the technique and technology for automatic flaw detector channels sensitivity adjustment. Conclusion. The offered technique and technology can be fully put into practice with the developed flaw detector and its control software.

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28

Щербинский and Viktor Shcherbinskii. "Effective Method of Correction of Acoustic Losses in a Contact Layer at Ultrasonic Flaw Detection." NDT World 18, no. 3 (September 1, 2015): 45–46. http://dx.doi.org/10.12737/12570.

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At ultrasonic flaw detection it is necessary to take into account an acoustic loss in a contact layer, especially for products with a statistically rough surface (roughness, waviness). Using samples with the surface identical to the product’s one is the most desirable variant, it is regulated in many techniques, but in practice in vast majority of cases this is not so. Measurements with profilographs or profilometers are taken on a very small area (less than the piezoelectric transducer size) and cannot give an estimation of a real contact layer condition under the whole transducer area. For integral roughness estimation in “CNIITMASH” the capacitance-type sensor DShV has been developed. The sensor is compatible with flaw detectors of any type; it forms a service signal with amplitude that is inversely proportional to a roughness height. Within a frequency rate of 1.8–5 MHz and an incident angle rate of 35–70° the correlation between sensor readings and acoustic losses in a contact layer has been ascertained; a general dependence for them has been obtained, a heuristic equation has been derived and nomograms for piezoelectric transducers of different manufacturers on the sample basis of 123 measurements have been plotted. As a result the new technique of ultrasonic flaw detection has been developed that includes: estimation of tested object real surface roughness with the DShV sensor, flaw detector sensitivity adjustment using a sample with a smooth surface, a gain factor correction by the value taken from a nomogram or calculated on the formula basis. Equivalent defect area should also be measured according to the algorithm described. This technique on principle increases repeatability and reliability of flaw detection results.

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29

Jung, Jun Hwan, Ho Ik Jun, Hyun-Sik Kim, and Seog Geun Kang. "Piezoelectric Transducer for Ultrasonic Flaw Detector with High Performance." Journal of the Korean Institute of Information and Communication Engineering 17, no. 7 (July 31, 2013): 1645–52. http://dx.doi.org/10.6109/jkiice.2013.17.7.1645.

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30

Gobov, Yu L., A. V. Mikhailov, and Ya G. Smorodinskii. "A magnetizing system for an EMA scanner-flaw detector." Russian Journal of Nondestructive Testing 50, no. 11 (November 2014): 659–66. http://dx.doi.org/10.1134/s1061830914110035.

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31

Lesnák, O. "Evaluation of Digitized Signals from a Steel Cable Flaw Detector." Materials Science Forum 210-213 (May 1996): 17–24. http://dx.doi.org/10.4028/www.scientific.net/msf.210-213.17.

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32

Kazakov, V. V. "A nonlinear effect-based ultrasonic flaw detector for detecting cracks." Russian Journal of Nondestructive Testing 44, no. 12 (December 2008): 832–35. http://dx.doi.org/10.1134/s1061830908120048.

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33

Markov, A. A., D. A. Shpagin, and M. N. Shilov. "Ultrasonic Multichannel Flaw Detector for Testing Rails with Signal Recording." Russian Journal of Nondestructive Testing 39, no. 2 (February 2003): 105–14. http://dx.doi.org/10.1023/b:runt.0000008386.07674.97.

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34

Markov, A. A., V. V. Mosyagin, S. L. Molotkov, and G. A. Ivanov. "APPLICATION OF INCLINED LONGITUDINAL ULTRASONIC WAVES TO IMPROVE THE EFFICIENCY OF RAIL FLAW DETECTION." Kontrol'. Diagnostika, no. 278 (August 2021): 4–13. http://dx.doi.org/10.14489/td.2021.08.pp.004-013.

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The article is devoted to the question of rail ultrasonic testing confidence. At present there is a range of flaw orientation angles in within which the testing is absent and, therefore such flaws can be lost. To except this drawback the current sound testing scheme in flaw detector railcars is to be supplemented with inclined probes exciting longitudinal wave. Experimental checks using echomethod showed the good results on an October railway section with flaw models and on a loaded Zabaycalskaya railway section. The next step was idea of mirror-shadow method using as well as echomethod by turning of probes towards each other. Envelope analysis of bottom signals allows receiving additional information about flaws: location depth of its center and form. But using of pair of probes was not enough for unambiguous definition of other geometric flaws characteristics. That is why the bottom signal envelope of straight probe was to be analyzed additionally. A mobile (as well removable) searching system of rail checking means has such probe as a rule. In the process of writing the article previously obtained formulas to calculate depth, inclination angle and plane size of revealed flaw were modified. Values changing during testing process are absent now. Algorithm of flaws identification on the basis of bottom signals envelope is given. The approach is confirmed by mathematical modeling in CIVA-UT.

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35

Liu, Wei, Zhuo Lin Miao, Huan Xin Cheng, and Li Cheng. "The Hardware Design of Ultrasonic Flaw Detector Based on Single-Chip Microcomputer AT89C52." Applied Mechanics and Materials 423-426 (September 2013): 2427–30. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.2427.

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Ultrasonic nondestructive testing is an important detection method in nondestructive testing field. It is widely used in steel manufacturing, machinery manufacturing, electronics manufacturing, aerospace and defense and other fields and departments to ensure production quality and safety. In this paper, the main research work and research results are as follows: analyze the principle of electromagnetic ultrasonic nondestructive testing and characteristic and the hardware design of ultrasonic flaw detector system based on single-chip microcomputer AT89C52. This paper laid a good foundation for more in-depth studies in the research of ultrasonic digital signal processing in future.

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36

KIREEV, A. N., V. V. BYKADOROV, and M. A. KIREEVA. "Comprehensive method for evaluating results of ultrasonic testing of parts and components of rolling stock when adjusting the sensitivity for different reflectors." Vestnik of the Railway Research Institute 78, no. 2 (June 5, 2019): 122–28. http://dx.doi.org/10.21780/2223-9731-2019-78-2-122-128.

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Operation of railway rolling stock is accompanied by high costs of maintaining its operating condition throughout the entire period of operation. To improve the operation efficiency of rolling stock, methods and diagnostics tools have been developed, which are used both in its manufacture and in carrying out maintenance and repairs, and as an independent technological process. Diagnostics allows to increase the availability factor and the probability of uptime of the rolling stock, reduce the complexity and cost of periodic maintenance of its nodes. The article proposes a new integrated method for estimating discontinuities in parts and units of railway rolling stock according to the amplitude — distance — diameter diagrams by the standardless method with the possibility of determining the type of discontinuity by the dual-frequency method of flaw-detection with a manual ultrasonic testing with a single-channel ultrasonic flaw detector. Developed method is most relevant in the control of cast parts of railway rolling stock, since castings can be equally likely to contain bulk (pores, shells, nonmetallic inclusions, etc.) and planar discontinuities (cracks of different origin; flocks; segregations that lead to violation continuity, etc.). Proposed method allows estimating the discontinuity by comparing the amplitude of the echo signal from it with the corresponding type of tuning reflector: if the discontinuity is planar as a result of using the two-frequency flaw-detection method, the comparison is carried out with the amplitude of the flat-bottomed cylindrical reflector; if the discontinuity is volumetric, then the comparison is made with the amplitude from the spherical reflector. The article describes the algorithm that was developed to automate the calculation of the parameters of the amplitude — distance — diameter diagram, the parameters of the use of the two-frequency method, and also the estimation of the detected discontinuities, and, based on it, the NDTRT-25 software that allows ensuring the convenience of the operator-diagnostician.

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37

Zhang, Wen Jie. "Welding Seam Turbulent Tracking Technique for Spiral Welded Pipe Ultrasonic Flaw Detection." Advanced Engineering Forum 2-3 (December 2011): 531–34. http://dx.doi.org/10.4028/www.scientific.net/aef.2-3.531.

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In the process of spiral submerged-arc welding automatic flaw detection, the weld edge reflection echo is very close to the back edge of the detection gate (generally around 3Ls, is equal to steel transversal wave approximately 4.5mm); therefore once the detector approaches the welding seam, the edge refection echo will enter in the gate, which causes the false alarming. In the past, the mechanical cam tracking, approaching switches tracking and photograph tracking methods were applied, but the mechanical cam tracking and the approaching switches tracking method have low precision, the result is not good. Although photograph tracking method has high measure precision, because of the light scattering of the water flow on the surface of the steel pipe, which will affect the precision. Both photograph tracking and stepping motor-driven methods is commonly used national wide, the effect is not good. Base on the above situation, the electromagnetic welding seam tracking and servo control electromechanical system with functions of electromagnetic tracking and servo control is developed.

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38

Bizyulev, A. N., V. F. Muzhitskii, R. V. Zagidulin, A. G. Efimov та A. M. Sysoev. "The ВД-12НФП Eddy-Current Flaw Detector and Methods for Processing a Measured Signal Produced by a Flaw". Russian Journal of Nondestructive Testing 40, № 5 (травень 2004): 350–55. http://dx.doi.org/10.1023/b:runt.0000045940.94273.13.

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39

Himawan, Roziq, Freddy Lie, Prita Dewi Basoeki, and Mudi Haryanto. "Applicabilty Study of Ultrasonic Flaw Detector For Nuclear Grade Graphite Examination." Journal of Physics: Conference Series 1198, no. 2 (April 2019): 022018. http://dx.doi.org/10.1088/1742-6596/1198/2/022018.

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40

Li, Qing, Wei Xie, Hong You, Xiaohua Qiu, Quan Guo, Lingxi Zhao, Jing Zhang, and Wei Liu. "Environmental Monitoring and Evaluation of the X-Ray Field Flaw Inspection Workplace in a Factory Building." E3S Web of Conferences 131 (2019): 01058. http://dx.doi.org/10.1051/e3sconf/201913101058.

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The surrounding radiation environment of the field flaw detection workplace has been theoretically calculated and monitored on site when an industrial X-ray flaw detector in a factory building is operated during the field flaw detection. The results show that when 5mA tube current and 250 kV tube voltage penetrate the steel tube at the thickness of 16mm twice, the calculated value of the air kerma rate at the inspection point is basically consistent with the measured value. Additionally, the boundary of the controlled area and the supervised area corresponded to the measured value along the main beam direction belongs to the wall in the east of the workshop. The calculated distances of the leaking beam corresponding to the boundary of the controlled area and the supervised area of the calculated value should be 19m and 58m, respectively. The minimum and maximum distances of the controlled area of the measured value are 13m and 17m, respectively; while the maximum and minimum distances of the supervised area of the measured value are 31m and 36m, respectively, both areas are within the workshop. Meanwhile, annual effective doses that might be accepted by professionals and the public have been estimated.

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41

Fedotovskikh, V. G., D. S. Tikhonov, and S. V. Romashkin. "THE EXPERIENCE OF CONTINUOUS THICKNESS MEASUREMENT BASED ON PHASED ARRAY FLAW DETECTOR." Kontrol'. Diagnostika, no. 267 (September 2020): 34–49. http://dx.doi.org/10.14489/td.2020.09.pp.034-049.

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Two techniques for conducting ultrasonic thickness measurement, developed by SPC “ECHO+”, are considered, one of which is designed for continuous thickness measurement of the base metal, and the other for thickness measurement of welded joints. The ultrasound methods used in these techniques are briefly described. The results of their application are presented. Also described control tools manufactured by SPC “ECHO +” for performing thickness measurement according to these methods.

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42

Ushakov, V. M., V. V. Mikhalev, and D. M. Davydov. "Sensitivity of a flaw detector during ultrasonic testing by chord-type transducers." Russian Journal of Nondestructive Testing 44, no. 11 (November 2008): 762–65. http://dx.doi.org/10.1134/s106183090811003x.

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43

Dolinenko, V. V., E. V. Shapovalov, YU V. Kuts, M. A. Redka, and V. N. Uchanin. "Modeling The Transient Processes In Measurement Channel Of Eddy-current Flaw Detector." Tehničeskaâ diagnostika i nerazrušaûŝij kontrolʹ 2018, no. 4 (December 28, 2018): 30–35. http://dx.doi.org/10.15407/tdnk2018.04.03.

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44

Zenin, Ye I., V. Ye Loskutov, S. L. Vaulin, Yu L. Gobov, and G. S. Korzunin. "The Magnetizing System of an In-Tube Flaw Detector with Transverse Magnetization." Russian Journal of Nondestructive Testing 41, no. 8 (August 2005): 514–22. http://dx.doi.org/10.1007/s11181-005-0200-z.

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45

Fedotovskikh, V. G., D. S. Tikhonov, and S. V. Romashkin. "THE EXPERIENCE OF CONTINUOUS THICKNESS MEASUREMENT BASED ON PHASED ARRAY FLAW DETECTOR." Kontrol'. Diagnostika, no. 267 (September 2020): 34–49. http://dx.doi.org/10.14489/td.2020.09.pp.034-049.

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Анотація:

Two techniques for conducting ultrasonic thickness measurement, developed by SPC “ECHO+”, are considered, one of which is designed for continuous thickness measurement of the base metal, and the other for thickness measurement of welded joints. The ultrasound methods used in these techniques are briefly described. The results of their application are presented. Also described control tools manufactured by SPC “ECHO +” for performing thickness measurement according to these methods.

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46

Martynenko, A. V., and V. P. Ermachenko. "On the Question of Interpreting the Echograms of Ultrasonic Pulse Flaw Detector." Russian Journal of Nondestructive Testing 57, no. 8 (August 2021): 656–68. http://dx.doi.org/10.1134/s1061830921080064.

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47

Bizyulev, A. N., та V. F. Muzhitskii. "Assessment of the Hazard Level (Depth) of Flaws Using a ВД-12НФМ Eddy Current Flaw Detector". Russian Journal of Nondestructive Testing 40, № 3 (березень 2004): 211–14. http://dx.doi.org/10.1023/b:runt.0000040180.60123.45.

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48

Borisenko, V. V., V. A. Zakharov, and K. V. Zakharov. "CONTROL OF THIN-WALLED SCREENS OF EPITAXIAL INSTALLATIONS BY THE EDDY CURRENT METHOD." Industrial laboratory. Diagnostics of materials 85, no. 6 (July 10, 2019): 42–46. http://dx.doi.org/10.26896/1028-6861-2019-85-6-42-46.

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The results of testing thin-walled welded joints (high-temperature assemblies of epitaxial installations) obtained by electron-beam welding using the eddy current method are presented. The tightness of those parts and assemblies is controlled by vacuum and compression leak detection methods, based on increasing the test gas concentration on the one side of the test surface and sampling it for mass spectrometric analysis on the other side. Helium mass spectrometric leak detectors are now widely used in aerospace, electronics and chemical industries, as well as in the instrument making industry and scientific research. The eddy current method provides a high scanning speed and allows timely detection of the defects and prevention of the risk of accidental wear of thin-walled elements and parts of aerospace and petrochemical equipment. The goal of this work is to optimize the control of welded joints of thin (0.2 and 0.5 mm) tantalum screen using a VEKTOR-60D detector and eddy current method. The device provides the use of overhead or flow eddy current differential, tangential and absolute transducers operating at a frequency from 10 Hz to 20 MHz, as well as various dynamic transducers. The device is designed to control metal products, carbon plastics and composites for the presence of defects such as surface and subsurface cracks, discontinuities and homogeneity of materials. VEKTOR-60D allows one to get a simultaneous signal display on the flaw detector screen both in the amplitude-time and complex planes. The used sensors (PVDT-1000-2, PVD-200-2,3, and VP160A45) provided detection of the defects across the entire width of the weld and heat-affected zone in one pass along the welded joint. The defect of the welded joint of the tantalum screen was revealed as incomplete penetration (nonpenetration in the weld root) in accordance with the classification of GOST R ISO 6520-1–2012. The results proved that a VEKTOR-60D eddy current detector can be successfully used in monitoring defects in thin-walled welded joints.

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49

Klymenko, Svitlana, Pavlo Kiselyov, and Oleksii Kulyk. "Ultrasonic non-destructive quality control of products made of polymeric composite materials rocket and space equipment." System technologies 3, no. 134 (April 5, 2021): 135–48. http://dx.doi.org/10.34185/1562-9945-3-134-2021-15.

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The development of modern rocket and space technology (RST) is characterized by constant improvement: increasing speed, range and altitude. Improving these characteristics, through modernization, has led to a significant complication of the design of RST and its equipment. Among the most promising materials for the manufacture of RST structures are more often used polymer composite materials (PCM), which are increasingly used in modern RST engineering, especially in cases where no other material meets the new requirements. Quality control of RST products depends on determining the condition of materials in these facilities, both in production and in operating conditions, which must be carried out both in the production process (with the deviation of production processes may form different types of structure heterogeneity: porosity, foreign inclusions, stratification and cracks) and during operation. In polymer composite materials RST, namely to detect defects such as delamination and cracks using ultrasonic non-destructive testing. An analysis of the use of traditional ultrasonic non-destructive testing using a portable ultrasonic flaw detector using high-frequency transducers. It has been determined that it is sufficient to use portable ultrasonic flaw detectors to detect longitudinal cracks or stratifications, but for more reliable detection and detection of defects, completeness of control should use automated ultrasonic control systems that have greater sensitivity and scanning speed. defective zones with the possibility of constructing a qualitative image of the defective zone for further assessment of the performance of the entire structure with PCM.

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50

Ulanov, V. V., A. N. Kovalenko, and R. A. Shestakov. "Calculation of automatic speed control devices of flaw detector in main gas pipeline." Proceedings of Gubkin Russian State University of Oil and Gas, no. 4 (2019): 137–48. http://dx.doi.org/10.33285/2073-9028-2019-4(297)-137-148.

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