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Artykuły w czasopismach na temat „ULTRASONIC APPLICATIONS”

Autor: Grafiati

Data publikacji: 11 września 2023

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1

Lucas, M., A. Gachagan i A. Cardoni. "Research applications and opportunities in power ultrasonics". Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, nr 12 (21.10.2009): 2949–65. http://dx.doi.org/10.1243/09544062jmes1671.

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The first applications in power ultrasonics were largely focused on ultrasonic cleaning baths, which rely on generating inertial cavitation, and the incorporation of ultrasonic excitation in manufacturing processes such as joining of plastics and metals. Since the early days of power ultrasonics there has been a rapid growth in the number of applications, and the diversified range of applications, from microwelding to ultrasonic osteotomy, has been made possible by a combination of advances in experimental techniques for characterizing low ultrasonic frequency vibrations and acoustics, and advances in computational modelling. This article highlights just some of the research in power ultrasonics that aims to exploit the benefits of low ultrasonic frequency high ultrasonic amplitude vibrations. This article reports current research and suggests future opportunities in three different application areas that have seen significant recent advances: joining and shaping of metals, surgical devices, and cavitation cells.

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Mulet, A., J. Benedito, J. Bon i N. Sanjuan. "Review: Low intensity ultrasonics in food technology / Revisión: Ultrasonidos de baja intensidad en tecnología de alimentos". Food Science and Technology International 5, nr 4 (sierpień 1999): 285–97. http://dx.doi.org/10.1177/108201329900500401.

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Ultrasonic applications can be classified into low intensity or high intensity applications. The latter are used to modify a process or product with ultrasonics, while in low intensity applications the process or product modifies the ultrasonic signal, thus providing information about the product. Low inten sity ultrasonics in food technology can be used to monitor a process (liquid level, flowmeters) or to determine the quality of food products. Since ultrasonic techniques are rapid, non-destructive, easy to automate and relatively inexpensive, the number of applications is rapidly growing in this field. Ultrasonics can also be considered for use in laboratory testing devices to determine physical and chemical properties of foods. Ultrasonics has been used to determine texture, composition and physical state in liquid and solid foods. The commonly measured ultrasonic parameters are velocity, attenua tion and frequency spectrum composition. Velocity is the parameter used most since it is the simplest and most reliable measurement. This paper reviews the basic principles of ultrasonics, the most suit able techniques for each type of application, the testing devices needed to make measurements and the most interesting applications.

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3

Lucas, Margaret, Andrea Cardoni, E. McCulloch, G. Hunter i Alan MacBeath. "Applications of Power Ultrasonics in Engineering". Applied Mechanics and Materials 13-14 (lipiec 2008): 11–20. http://dx.doi.org/10.4028/www.scientific.net/amm.13-14.11.

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Applications of power ultrasonics in engineering are growing and now encompass a wide variety of industrial processes and medical procedures. In the field of power ultrasonics, ultrasonic vibrations are used to effect a physical change in a medium. However, the mechanism by which a process can benefit from power ultrasonics is not common for all applications and can include one or more of such diverse mechanisms as acoustic cavitation, heating, microfracture, surface agitation and chemical reactions. This paper presents two applications of power ultrasonics involving some of these different characteristics by concentrating on two case studies involving material failure (ultrasonic cutting) and acoustic cavitation (bacterial inactivation).

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4

Zhu, Yong Wei, Xing Lei Miao i Chao Feng Zhang. "Precise-Micro PECM System and its Applications Combining Synchronizing Ultrasonical Vibration". Advanced Materials Research 295-297 (lipiec 2011): 834–39. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.834.

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The micro-PECM (Pulse Electrochemical Machining) combining synchronous ultrasonic vibration is proposed as a new technology for to solve the difficulty machining problems of conductive hard and tough materials. The feasibility of micro-PECM combining synchronous ultrasonic vibration is studied. The synchronous way is analyzed; the synchronous electrical circuit is designed and made. The synchronous electrochemical micro-machining system combining ultrasonical vibration are built and improved，which machining parameters can be adjusted in a wide ranges, and the synchronous target of the ultrasonical vibration with the voltage of micro-PECM can be realized. The micro-machining electrodes are manufactured in different sections and sizes by combined electrical discharge machining. The mechanism tests of micro-PECM are carried, which kentaniums （YBD151、YG8）and stainless steel are machined and the results are analyzed and discussed. Contrast with the single micro-USM, the micro-PECM combining ultrasonic vibration has high productivity, good machining accuracy and surface quality; furthermore, its cathode wastage is low. The micro-PECM combining synchronous ultrasonic vibration has the best machining precision and surface quality.

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5

Dixon, Steve, i Stuart B. Palmer. "OS02W0325 Non-contact ultrasonic measurements for manufacturing applications". Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2003.2 (2003): _OS02W0325. http://dx.doi.org/10.1299/jsmeatem.2003.2._os02w0325.

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6

Wang, Z. W., G. Q. Pan i Dong Hui Wen. "Applications of Ultrasonic Radiation Forces". Advanced Materials Research 215 (marzec 2011): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amr.215.259.

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This keynote paper aims at introducing applications of ultrasonic radiation force in industry. The chosen focus is to understand how to use it. Since the phenomenon of acoustic levitation can reflect the exciting of ultrasonic radiation force directly. The paper starts with an analysis on the tungsten ball floating on a sound field and ultrasonic micro-manipulation study in micro Electronic Mechanical System (MEMS). And ultrasound has been successfully used to degrade wastewater as its cavitation. At the same time, different kinds of micro-ultrasonic machining were used to show how exciting machining and ultrasonic radiation combined. A view from the authors and the final Conclusions show future applications of ultrasonic radiation force.

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7

ZEQIRI, B. "Metrology for ultrasonic applications". Progress in Biophysics and Molecular Biology 93, nr 1-3 (styczeń 2007): 138–52. http://dx.doi.org/10.1016/j.pbiomolbio.2006.07.023.

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8

Thomas, Hywel R. "Peter Neil Temple Wells CBE. 19 May 1936—22 April 2017". Biographical Memoirs of Fellows of the Royal Society 66 (13.02.2019): 463–77. http://dx.doi.org/10.1098/rsbm.2018.0022.

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Peter Wells will be remembered internationally for his many outstanding contributions in the field of medical ultrasound. He pioneered the development of non-invasive imaging techniques in the development of ultrasonics as a diagnostic and surgical tool. He was the originator and developer of instruments for ultrasonic surgery and ultrasonic power measurement, as well as the two-dimensional, articulated-arm ultrasonic general purpose scanner and the water-immersion ultrasonic breast scanner. He demonstrated ultrasonic-pulsed Doppler range-gating, and was the discoverer of the ultrasonic Doppler signal characteristic of malignant tumour neovascularization. He investigated ultrasonic bioeffects and formulated ultrasonic safety guidelines and conditions for prudent use of ultrasonic diagnosis. His outstanding and sustained achievements in the medical applications of ultrasound extend continuously from the 1960s until a few days before his death at the age of 80. Anyone who has ever benefited from an ultrasound procedure owes a debt of gratitude to Peter Wells.

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9

Singh, Kanwal Jit, Inderpreet Singh Ahuja i Jatinder Kapoor. "Ultrasonic, chemical-assisted ultrasonic and rotary ultrasonic machining of glass: a review paper". World Journal of Engineering 15, nr 6 (3.12.2018): 751–70. http://dx.doi.org/10.1108/wje-04-2018-0114.

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PurposeThis review paper reveals the literature on ultrasonic, chemical-assisted ultrasonic and rotary ultrasonic machining (USM) of glass material. The purpose of this review paper is to understand and describe the working principle, mechanism of material removal, experimental investigation, applications and influence of input parameters on machining characteristics. The literature reveals that the ultrasonic machines have been generally preferred for the glass and brittle work materials. Some other non-traditional machining processes may thermally damage the work surface. Through these USM, neither thermal effects nor residual stresses have been generated on the machined surface.Design/methodology/approachVarious input parameters have the significant role in machine performance characteristics. For the optimization of output response, several input parameters have been critically investigated by the various researcher.FindingsSome advance types of glasses such as polycarbonate bulletproof glass, acrylic heat-resistant glass and glass-clad polycarbonate bulletproof glass still need some further investigation because these materials have vast applications in automobile, aerospace and space industries.Originality/valueReview paper will be beneficial for industrial application and the various young researcher. Paper reveals the detail literature review on traditional ultrasonic, chemical assisted ultrasonic and rotary USM of glass and glass composite materials.

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10

Tomikawa, Y., T. Ogasawara i A. Takano. "Ultrasonic motors—constructions/characteristics/applications". Ferroelectrics 91, nr 1 (marzec 1989): 163–78. http://dx.doi.org/10.1080/00150198908015736.

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11

Salo, Satu, i Gun Wirtanen. "Ultrasonic cleaning applications in dairies". British Food Journal 109, nr 1 (30.01.2007): 31–42. http://dx.doi.org/10.1108/00070700710718499.

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12

Sabyrov, Nurbol, M. Jahan, Azat Bilal i Asma Perveen. "Ultrasonic Vibration Assisted Electro-Discharge Machining (EDM)—An Overview". Materials 12, nr 3 (10.02.2019): 522. http://dx.doi.org/10.3390/ma12030522.

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Many of the industrial processes, including material removal operation for shape generation on the surface of material, exploit the assistance of ultrasonic vibrations. This trend of using ultrasonic vibration in order to improve the process performance is becoming more and more prominent recently. One of the significant applications of this ultrasonic vibration is in the industrial processes such as Electro-discharge machining (EDM), where ultrasonic vibration (UV) is inserted as a medium for enhancing the process performance. Mostly ultrasonic vibration is applied along with the EDM process to increase the efficiency of the process through debris cleansing from the sparking gap. There have been significant changes in ultrasonic assisted technology during the past years. Due to its inherent advantages, ultrasonic assistance infiltrated in different areas of EDM, such as wire cut EDM, micro EDM and die sinking EDM. This article presents an overview of ultrasonic vibration applications in electric discharge machining. This review provides information about modes of UV application, impacts on parameters of performance, optimization and process designing on difficult-to-cut materials. On the bases of available research works on ultrasonic vibration assisted EDM, current challenges and future research direction to improve the process capabilities are identified. Literature suggested improved material removal rate (MRR), increased surface roughness (SR) and tool wear ratio (TWR) due to the application of ultrasonic vibration assisted EDM. However, tool wear and surface roughness can be lessened with the addition of carbon nanofiber along with ultrasonic vibration. Moreover, the application of ultrasonic vibration to both tool and workpiece results in higher MRR compared to its application to single electrode.

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13

Gururaja, T. R., W. A. Schulze, L. E. Cross i R. E. Newnham. "Piezoelectric Composite Materials for Ultrasonic Transducer Applications. Part II: Evaluation of Ultrasonic Medical Applications". IEEE Transactions on Sonics and Ultrasonics 32, nr 4 (lipiec 1985): 499–513. http://dx.doi.org/10.1109/t-su.1985.31624.

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14

Smagowska, Bożena. "Ultrasonic Noise Sources in a Work Environment". Archives of Acoustics 38, nr 2 (1.06.2013): 169–76. http://dx.doi.org/10.2478/aoa-2013-0019.

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Abstract The use of ultrasonic energy has created versatile possibilities of their applications in many areas of life, especially in hydro location and underwater telecommunications, industry and medicine. The consequence of a widespread use of high intensity ultrasonics in technology is the increased number of people who are exposed to such ultrasonic noise. Therefore it is important to determine the types of machines and other devices that are responsible for the emission of ultrasonic noise (10-40 kHz of central frequencies of one-third octave bands) as harmful and annoying hazard in the work environment. This paper presents ultrasonic noise sources frequently used in industry and preventive measures reducing the exposure to ultrasonic noise. Two types of ultrasonic noise sources have been distinguished: machines and other devices used to carry out or improve production processes, the so-called technological sources and sources in which ultrasonic noise exists as a non-intentional result of operation of many machines and systems, the so-called non-technological sources of ultrasonic noise. The emission of SPL has been determined for each groups of devices based on own measurement results.

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15

Ren, Danyang, Yizhe Sun, Junhui Shi i Ruimin Chen. "A Review of Transparent Sensors for Photoacoustic Imaging Applications". Photonics 8, nr 8 (10.08.2021): 324. http://dx.doi.org/10.3390/photonics8080324.

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Photoacoustic imaging is a new type of noninvasive, nonradiation imaging modality that combines the deep penetration of ultrasonic imaging and high specificity of optical imaging. Photoacoustic imaging systems employing conventional ultrasonic sensors impose certain constraints such as obstructions in the optical path, bulky sensor size, complex system configurations, difficult optical and acoustic alignment, and degradation of signal-to-noise ratio. To overcome these drawbacks, an ultrasonic sensor in the optically transparent form has been introduced, as it enables direct delivery of excitation light through the sensors. In recent years, various types of optically transparent ultrasonic sensors have been developed for photoacoustic imaging applications, including optics-based ultrasonic sensors, piezoelectric-based ultrasonic sensors, and microelectromechanical system-based capacitive micromachined ultrasonic transducers. In this paper, the authors review representative transparent sensors for photoacoustic imaging applications. In addition, the potential challenges and future directions of the development of transparent sensors are discussed.

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16

Wang, Shuai, Xuewei Wang, Fucheng You i Han Xiao. "Review of Ultrasonic Particle Manipulation Techniques: Applications and Research Advances". Micromachines 14, nr 8 (25.07.2023): 1487. http://dx.doi.org/10.3390/mi14081487.

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Ultrasonic particle manipulation technique is a non-contact label-free method for manipulating micro- and nano-scale particles using ultrasound, which has obvious advantages over traditional optical, magnetic, and electrical micro-manipulation techniques; it has gained extensive attention in micro-nano manipulation in recent years. This paper introduces the basic principles and manipulation methods of ultrasonic particle manipulation techniques, provides a detailed overview of the current mainstream acoustic field generation methods, and also highlights, in particular, the applicable scenarios for different numbers and arrangements of ultrasonic transducer devices. Ultrasonic transducer arrays have been used extensively in various particle manipulation applications, and many sound field reconstruction algorithms based on ultrasonic transducer arrays have been proposed one after another. In this paper, unlike most other previous reviews on ultrasonic particle manipulation, we analyze and summarize the current reconstruction algorithms for generating sound fields based on ultrasonic transducer arrays and compare these algorithms. Finally, we explore the applications of ultrasonic particle manipulation technology in engineering and biological fields and summarize and forecast the research progress of ultrasonic particle manipulation technology. We believe that this review will provide superior guidance for ultrasonic particle manipulation methods based on the study of micro and nano operations.

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17

Takiguchi, Takashi. "Ultrasonic Tomographic Technique and Its Applications". Applied Sciences 9, nr 5 (11.03.2019): 1005. http://dx.doi.org/10.3390/app9051005.

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X-ray tomography and magnetic resonance imaging (MRI) are excellent techniques for non-destructive or non-invasive inspections, however, they have shotcomings including the expensive cost in both the devices themselves and their protection facilities, the harmful side effects of the X-rays to human bodies and to the environment. In view of this argument, it is necessary to develop new, inexpensive, safe and reliable tomographic techniques, especially in medical imaging and non-destructive inspections. There are new tomographic techniques under development such as optical tomography, photo-acoustic tomography, ultrasonic tomography and so on, from which we take ultrasonic tomography as the topic in this paper. We introduce a review of the known ultrasonic tomographic techniques and discuss their future development.

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18

Yang, In Young, Yong Jun Yang, Jun Woo Park, Kil Sung Lee, Young Tae Cho, Je Woong Park, David K. Hsu i Kwang Hee Im. "Application of Air-Coupled Ultrasonic Techniques Using Carbon/Carbon Composites". Materials Science Forum 580-582 (czerwiec 2008): 121–24. http://dx.doi.org/10.4028/www.scientific.net/msf.580-582.121.

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Carbon/carbon(C/C) composite materials have obvious advantages over conventional materials, which consist of carbon fibers embedded in a carbon matrix. It’s low density, high thermal conductivity and excellent mechanical properties at elevated temperatures make it an ideal material for aerospace applications especially aircraft brake disks. Because of permeation of coupling medium such as water, it is desirable to perform contact-less nondestructive evaluation to assess material properties and part homogeneity. In this work, a C/C composite material was characterized with non-contact and contact ultrasonic methods using automated acquisition scanner. . Due to the acoustic impedance mismatch found between most materials and air, a major limitation for air-coupled transducers, through-transmission mode was performed. Especially ultrasonic images and velocities for C/C composite disk brake were measured and found to be consistent to some degree with the non-contact and contact ultrasonic measurement methods. 400 kHz frequency through-transmission scans based on both amplitude and time-of-flight of the ultrasonic pulse were used for mapping out the inhomogeneity in material property. Non-contact measured results were compared with those obtained by the motorized system using contact drycoupling ultrasonics and through transmission method in immersion. Results using a proposed peak-delay measurement non-contact method corresponded well to the ultrasonic velocities of the contact pulse overlap method.

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19

Pan, Jingxi. "Performance Analysis and Prospect of Piezoelectric Ultrasonic Transducers Based on Vibration Modes". Academic Journal of Science and Technology 6, nr 1 (29.05.2023): 40–44. http://dx.doi.org/10.54097/ajst.v6i1.8280.

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With the maturity of ultrasonic transducer technology, as a traditional ultrasonic transducer, piezoelectric ultrasonic transducer has leaped into the public view. This article briefly summarizes the development of ultrasonic transducers and the classification of piezoelectric ultrasonic transducers. In practical applications, different piezoelectric ultrasonic transducers are mostly selected based on the different sound source vibrations in the application scenarios. The principle analysis and structure introduction of longitudinal vibration type ultrasonic transducers, longitudinal bending vibration mode conversion type ultrasonic transducers, and torsional vibration piezoelectric ceramic ultrasonic transducers are conducted respectively, and the application fields are pointed out. Besides, heat dissipation is an important link that affects the energy transfer efficiency of piezoelectric ultrasonic transducers. For traditional air-cooled heat dissipation and phase change heat dissipation, the heat dissipation ability is investigated and analyzed separately, and the advantages and disadvantages of the two are compared. It is concluded that phase change heat dissipation can effectively solve the impact caused by excessive temperature difference inside the transducer, while traditional heat dissipation methods cannot solve this problem.

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20

Yang, Yang, i Bin Lin. "Situations and Development Trends of Ultrasonic Machining Tool and Ultrasonic Machining Technology". Applied Mechanics and Materials 37-38 (listopad 2010): 1199–205. http://dx.doi.org/10.4028/www.scientific.net/amm.37-38.1199.

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Based on the up to date development of the ultrasonic machining (USM) technology, applications and development trends of the ultrasonic machining tool are described. Automatic control including intelligent control and adaptive control, also tools in processing as an attachment and load matching system are trends in ultrasonic machining tool. The latest applications of ultrasonic machining technology in deep hole machining, ultrasonic elliptical vibration cutting, ultrasonic grinding, ultrasonic milling and ultrasonic combined machining are summarized, processing accuracy and processing efficiency have got a lot of progress. The development trends and future prospect of the ultrasonic machining technology are expounded. Studying the ultrasonic cutting mechanism, ultrasonic combined machining technology and micro-ultrasonic machining technology are the trends of ultrasonic machining.

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21

Birjis, Yumna, Siddharth Swaminathan, Haleh Nazemi, Gian Carlo Antony Raj, Pavithra Munirathinam, Aya Abu-Libdeh i Arezoo Emadi. "Piezoelectric Micromachined Ultrasonic Transducers (PMUTs): Performance Metrics, Advancements, and Applications". Sensors 22, nr 23 (25.11.2022): 9151. http://dx.doi.org/10.3390/s22239151.

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With the development of technology, systems gravitate towards increasing in their complexity, miniaturization, and level of automation. Amongst these systems, ultrasonic devices have adhered to this trend of advancement. Ultrasonic systems require transducers to generate and sense ultrasonic signals. These transducers heavily impact the system’s performance. Advancements in microelectromechanical systems have led to the development of micromachined ultrasonic transducers (MUTs), which are utilized in miniaturized ultrasound systems. Piezoelectric micromachined ultrasonic transducers (PMUTs) exhibit higher capacitance and lower electrical impedance, which enhances the transducer’s sensitivity by minimizing the effect of parasitic capacitance and facilitating their integration with low-voltage electronics. PMUTs utilize high-yield batch microfabrication with the use of thin piezoelectric films. The deposition of thin piezoelectric material compatible with complementary metal-oxide semiconductors (CMOS) has opened novel avenues for the development of miniaturized compact systems with the same substrate for application and control electronics. PMUTs offer a wide variety of applications, including medical imaging, fingerprint sensing, range-finding, energy harvesting, and intrabody and underwater communication links. This paper reviews the current research and recent advancements on PMUTs and their applications. This paper investigates in detail the important transduction metrics and critical design parameters for high-performance PMUTs. Piezoelectric materials and microfabrication processes utilized to manufacture PMUTs are discussed. Promising PMUT applications and outlook on future advancements are presented.

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22

Dignard, Carole, Robyn Douglas, Sherry Guild, Anne Maheux i Wanda McWilliams. "Ultrasonic Misting. Part 2, Treatment Applications". Journal of the American Institute for Conservation 36, nr 2 (1997): 127. http://dx.doi.org/10.2307/3179827.

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Tittmann, Bernhard R., i Mustafa Aslan. "Ultrasonic Sensors for High Temperature Applications". Japanese Journal of Applied Physics 38, Part 1, No. 5B (30.05.1999): 3011–13. http://dx.doi.org/10.1143/jjap.38.3011.

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Billings, John K. "Noncontact ultrasonic gauging for industrial applications". Journal of the Acoustical Society of America 79, S1 (maj 1986): S60. http://dx.doi.org/10.1121/1.2023309.

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Santagati, G. E., T. Melodia, L. Galluccio i S. Palazzo. "Ultrasonic networking for E-health applications". IEEE Wireless Communications 20, nr 4 (sierpień 2013): 74–81. http://dx.doi.org/10.1109/mwc.2013.6590053.

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Qiao Xue-Guang, Shao Zhi-Hua, Bao Wei-Jia i Rong Qiang-Zhou. "Fiber-optic ultrasonic sensors and applications". Acta Physica Sinica 66, nr 7 (2017): 074205. http://dx.doi.org/10.7498/aps.66.074205.

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McNab, A., K. J. Kirk i A. Cochran. "Ultrasonic transducers for high temperature applications". IEE Proceedings - Science, Measurement and Technology 145, nr 5 (1.09.1998): 229–36. http://dx.doi.org/10.1049/ip-smt:19982210.

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RYMARCZYK, Tomasz. "Tomographic Ultrasonic Sensors in Industrial Applications". PRZEGLĄD ELEKTROTECHNICZNY 1, nr 1 (2.01.2021): 168–71. http://dx.doi.org/10.15199/48.2021.01.33.

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Bovtun, Viktor, Joachim Döring, Michael Wegener, Jürgen Bartusch, Uve Beck, Anton Erhard i Vladimir Borisov. "Air-Coupled Ultrasonic Applications of Ferroelectrets". Ferroelectrics 370, nr 1 (21.10.2008): 11–17. http://dx.doi.org/10.1080/00150190802380243.

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Liang, Kenneth, Gérard Fleury, Benoit Froelich, Jean‐Luc Guey i Pascal Schoeb. "Cylindrical ultrasonic array for borehole applications". Journal of the Acoustical Society of America 123, nr 5 (maj 2008): 3372. http://dx.doi.org/10.1121/1.2933993.

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Murray, Todd W. "Multiplexed interferometer for ultrasonic imaging applications". Optical Engineering 40, nr 7 (1.07.2001): 1321. http://dx.doi.org/10.1117/1.1385171.

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Cheeke, J. David, i James Zagzebski. "Fundamentals and Applications of Ultrasonic Waves". American Journal of Physics 72, nr 5 (maj 2004): 719. http://dx.doi.org/10.1119/1.1645288.

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Umego, Ekene Christopher, Ronghai He, Wenbin Ren, Haining Xu i Haile Ma. "Ultrasonic-assisted enzymolysis: Principle and applications". Process Biochemistry 100 (styczeń 2021): 59–68. http://dx.doi.org/10.1016/j.procbio.2020.09.033.

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Palmer, S. B. "Non-contacting ultrasonic techniques and applications". NDT International 22, nr 1 (luty 1989): 42. http://dx.doi.org/10.1016/0308-9126(89)91295-9.

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van Leeuwen, W. H. "Applications of ultrasonic mode conversion techniques". International Journal of Pressure Vessels and Piping 39, nr 4 (styczeń 1989): 265–78. http://dx.doi.org/10.1016/0308-0161(89)90089-6.

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Noll, Martin, Peter M. Knoll i Peter Rapps. "Ultrasonic sensor for reverse driving applications". Sensors and Actuators A: Physical 31, nr 1-3 (marzec 1992): 51–53. http://dx.doi.org/10.1016/0924-4247(92)80079-i.

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Palmer, S. "Non-contacting ultrasonic techniques and applications". NDT & E International 22, nr 1 (luty 1989): 42. http://dx.doi.org/10.1016/0963-8695(89)90731-7.

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Cheeke, David, i Robert D. Finch. "Fundamentals and Applications of Ultrasonic Waves". Journal of the Acoustical Society of America 113, nr 1 (styczeń 2003): 14–15. http://dx.doi.org/10.1121/1.1527963.

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You, Kiheum, Seung-Hwan Kim i Hojong Choi. "A Class-J Power Amplifier Implementation for Ultrasound Device Applications". Sensors 20, nr 8 (16.04.2020): 2273. http://dx.doi.org/10.3390/s20082273.

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In ultrasonic systems, power amplifiers are one of the most important electronic components used to supply output voltages to ultrasonic devices. If ultrasonic devices have low sensitivity and limited maximum allowable voltages, it can be quite challenging to detect the echo signal in the ultrasonic system itself. Therefore, the class-J power amplifier, which can generate high output power with high efficiency, is proposed for such ultrasonic device applications. The class-J power amplifier developed has a power efficiency of 63.91% and a gain of 28.16 dB at 25 MHz and 13.52 dBm input. The pulse-echo measurement method was used to verify the performance of the electronic components used in the ultrasonic system. The echo signal appearing with the discharged high voltage signal was measured. The amplitude of the first echo signal in the measured echo signal spectrum was 4.4 V and the total-harmonic-distortion (THD), including the fundamental signal and the second harmonic, was 22.35%. The amplitude of the second echo signal was 1.08 V, and the THD, including the fundamental signal and the second harmonic, was 12.45%. These results confirm that a class-J power amplifier can supply a very high output echo signal to an ultrasonic device.

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Xu, Zhao Li, i Zhi Yuan Yao. "Research on Control Methods of Speed Stability by AR Model Based on Linear Ultrasonic Motor". Applied Mechanics and Materials 385-386 (sierpień 2013): 777–80. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.777.

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Linear ultrasonic motor has a wide range of applications in the aerospace field, which requires not only high accuracy of the control, but also the need for a stable running speed. For broadening its application, it is necessary to keep the linear ultrasonic motor having a stable speed. This paper first proposes AR module method for linear ultrasonic motor. The speed of the linear ultrasonic motor is measured by the driving and controlling system. By minimizing the targeted speed value and the actual speed value, we can keep the linear ultrasonic motor stable. This text also compares this method with the traditional PID method. The average deviation of AR is 24%.

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Feng, Jinyu, Tie Yan, Yang Cao i Shihui Sun. "Ultrasonic-Assisted Rock-Breaking Technology and Oil and Gas Drilling Applications: A Review". Energies 15, nr 22 (10.11.2022): 8394. http://dx.doi.org/10.3390/en15228394.

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High-efficiency rock-breaking is a problem that has long been studied in the oil- and gas-drilling industry. The successful use of ultrasonic technology in related fields has prompted us to study how to introduce ultrasonic technology into rock-breaking in oil and gas drilling. This paper introduces and discusses the successful cases of ultrasonic breaking technology in related fields, summarizes the three basic forms of ultrasonic action on rocks, namely, resonance, impact and cavitation, expounds the factors and laws that affect ultrasonic-assisted rock-breaking, and summarizes the research results reported in recent years. It is believed that, at present, the application of ultrasonic-assisted rock-breaking technology in the oil- and gas-drilling industry still faces some problems and challenges: first, the downhole high-temperature and high-pressure conditions will affect the effect of ultrasonic-assisted rock-breaking, and the related mechanisms and research are not clear; second, the impact of circulating media on ultrasonic-assisted rock-breaking is not clear; third, the problem of ultrasonic propagation and utilization in the downhole has not been well-solved; fourth, the stability of drilling tools and circulating media caused by high-frequency characteristics has not been well-solved. Therefore, it is suggested to increase research on the mechanism of ultrasonic-assisted rock-breaking with oil- and gas-drilling characteristics and the transmission and utilization of downhole ultrasonic energy in the future, and increase the development of supporting products to support the application of this technology in the oil and gas industry.

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Sim, Jae Ki, Kwang Hee Im, David K. Hsu, Ji Hoon Kim, Hyun Lee, Jae Jung Hwang i Kyung-Youn Bak. "On Ultrasonic Characteristics in Carbon/Phenolic Matrix Composite Materials". Materials Science Forum 449-452 (marzec 2004): 757–60. http://dx.doi.org/10.4028/www.scientific.net/msf.449-452.757.

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In order to assess material properties and part homogeneity in carbon matrix composite (CMC) brake disks we have performed nondestructive evaluation, which are originally developed for aerospace applications. In this paper we have adopted several ultrasonic techniques to evaluate carbon matrix composites for the material properties that are attributable to the manufacturing process. In a carbon matrix composite manufactured by chemical vapor infiltration (CVI) method, the spatial variation of ultrasonic velocity was measured and found to be consistent with the densification behavior in CVI process in order to increase the density of the CMC composites. Ultrasonic velocity and attenuation depend on a density variation of materials. Low frequency through-transmission scans based on both amplitude and time-of-flight of the ultrasonic pulse were used for mapping out the material property inhomogeneity. Optical micrograph had been examined on the surface of the CMCs using a destructive way. Also a motorized system was adopted to measure ultrasonic velocity on the point of the CMC materials under the same coupling conditions. Manual results were compared with those obtained by the motorized system with using dry-coupling ultrasonics and through transmission method in immersion.

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Mracek, Maik, Tobias Hemsel, Piotr Vasiljev i Jörg Wallaschek. "Self Configuration of a Novel Miniature Ultrasonic Linear Motor". Solid State Phenomena 113 (czerwiec 2006): 167–72. http://dx.doi.org/10.4028/www.scientific.net/ssp.113.167.

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Rotary ultrasonic motors have found broad industrial application in camera lens drives and other systems. Linear ultrasonic motors in contrast have only found limited applications. The main reason for the limited range of application of these very attractive devices seems to be their small force and power range. Attempts to build linear ultrasonic motors for high forces and high power applications have not been truly successful yet. To achieve drives, larger force and higher power, and multiple miniaturized motors can be combined. This approach, however, is not as simple as it appears at first glance. The electromechanical behavior of individual motors differs slightly due to manufacturing and assembly tolerances. Individual motor characteristics are strongly dependent on the driving parameters (frequency, voltage, temperature, pre-stress, etc.) and the driven load and the collective behavior of the swarm of motors is not just the linear superposition of the individual drive’s forces.

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Geetha, R., i R. Padmavathy. "Thermoacoustic, Electrochemical, Solvation and Antimicrobial Analysis of Ternary Potassium Salts Solutions at 308.15K". International Journal of Current Research and Review 15, nr 02 (2023): 16–22. http://dx.doi.org/10.31782/ijcrr.2023.15203.

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Introduction: Amino acids join with each other by peptide bonds and build polymers referred to peptides and proteins. Peptides are recognized for being very therapeutic, selective and comparably safe. As a result, peptides are receiving more attention in pharmaceutical research and development. The scientific progress of ultrasonics has been employed extensively in past decades for both industrial and medical applications. Aim/Objectives: Ultrasonic investigation in non- aqueous solutions of electrolytes with peptides provide information that is helpful in understanding the behaviour of liquids/solutions system. In the present work, the ultrasonic velocity of a peptide with electrolyte in formamide has been measured at various concentrations at 308.15K. Methods: Utilizing the measured data the thermoacoustical, electrochemical and solvation analysis are carried out. The interionic and intermolecular interactions existing in the present system are studied in detail. Conclusion: The results arrived from ultrasonic methods have been corroborated with antimicrobial activity of the samples.

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Li, Guangxi, Wenbo Bie, Bo Zhao, Fan Chen, Chongyang Zhao i Yuemin Zhang. "Ultrasonic assisted machining of gears with enhanced fatigue resistance: A comprehensive review". Advances in Mechanical Engineering 14, nr 4 (kwiecień 2022): 168781322210828. http://dx.doi.org/10.1177/16878132221082849.

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In recent years, ultrasonic-assisted machining (UAM) has been widely implemented to improve the performance and element quality of machined products. This paper comprehensively reviews the ultrasonic vibration effects on such ultrasonic vibration-assisted (UVA) processes as hobbing (UVAH), lapping (UVAL), electrochemical gear machining (UVAEGM), honing (UVAH), and grinding (UVAG), respectively. Compared with the conventional machining, the UAM significantly reduced the surface roughness, improved the surface microstructure, and quality. Considering the UAM applications surface modification and surface strengthening, the available technologies of ultrasonic impact, ultrasonic shot peening, and ultrasonic deep rolling were analyzed for gears and similar components. It was concluded that the surface was strengthened under UAM through introducing the high-amplitude and large-depth residual compressive stresses, restraining crack propagation to a certain extent, and improving the gear fatigue resistance. Finally, the ultrasonic machining effect on gear fatigue resistance was theoretically substantiated from the ultrasonic vibration system and surface integrity standpoints. This review aims to optimize the application of ultrasonic-assisted machining, in order to produce gears with enhanced fatigue resistance and surface integrity.

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Heredia-Rivera, Ferrer i Vázquez. "Ultrasonic Molding Technology: Recent Advances and Potential Applications in the Medical Industry". Polymers 11, nr 4 (11.04.2019): 667. http://dx.doi.org/10.3390/polym11040667.

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Recently, ultrasonic molding (USM) has emerged as a promising replication technique for low and medium volume production of miniature and micro-scale parts. In a relatively short time cycle, ultrasonic molding can process a wide variety of polymeric materials without any noticeable thermal degradation into cost-effective molded parts. This research work reviews recent breakthroughs of the ultrasonic injection molding and ultrasonic compression molding process regarding the equipment and tooling development, materials processing and potential applications in the medical industry. The discussion is centered on the challenges of industrializing this technology, pointing out the need for improvement of the current process’s robustness and repeatability. Among the most important research areas that were identified are the processing of novel engineered and nanomaterials, the understanding and control of the ultrasonic plasticization process and the tooling and equipment development.

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Bychkov, Anton, Varvara Simonova, Vasily Zarubin, Elena Cherepetskaya i Alexander Karabutov. "The Progress in Photoacoustic and Laser Ultrasonic Tomographic Imaging for Biomedicine and Industry: A Review". Applied Sciences 8, nr 10 (15.10.2018): 1931. http://dx.doi.org/10.3390/app8101931.

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The current paper reviews a set of principles and applications of photoacoustic and laser ultrasonic imaging, developed in the Laser Optoacoustic Laboratories of ILIT RAS, NUST MISiS, and ILC MSU. These applications include combined photoacoustic and laser ultrasonic imaging for biological objects, and tomographic laser ultrasonic imaging of solids. Principles, algorithms, resolution of the developed methods, and related problems are discussed. The review is written in context of the current state-of-art of photoacoustic and laser ultrasonic imaging.

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Xing-fu, Zhong, Wu Ying-xiang, Li Dong-hui, Li Qiang i Wang Xing-guo. "Ultrasonic tomography and its applications in oilfield". Journal of Zhejiang University-SCIENCE A 6, nr 12 (grudzień 2005): 1420–23. http://dx.doi.org/10.1631/jzus.2005.a1420.

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MIHARA, Tsuyoshi. "Ultrasonic Phased Array Techniques for Industrial Applications". Journal of the Society of Materials Science, Japan 69, nr 8 (15.08.2020): 569–74. http://dx.doi.org/10.2472/jsms.69.569.

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Solodov, Igor, Yannick Bernhardt, Linus Littner i Marc Kreutzbruck. "Ultrasonic Anisotropy in Composites: Effects and Applications". Journal of Composites Science 6, nr 3 (16.03.2022): 93. http://dx.doi.org/10.3390/jcs6030093.

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Stiffness anisotropy is a natural consequence of a fibrous structure of composite materials. The effect of anisotropy can be two-fold: it is highly desirable in some cases to assure a proper material response, while it might be even harmful for the applications based on “isotropic” composite materials. To provide a controllable flexibility in material architecture by corresponding fibre alignment, the methodologies for the precise non-destructive evaluation of elastic anisotropy and the fibre orientation are required. The tasks of monitoring the anisotropy and assessing the fibre fields in composites are analyzed by using the two types of ultrasonic waves suitable for regular plate-shaped composite profiles. In the plate wave approach, the effect of “dispersion of anisotropy” has been shown to make the wave velocity anisotropy to be a function of frequency. As a result, the in-plane velocity pattern measured at a certain frequency is affected by the difference in the wave structure, which activates different elasticity against the background of intrinsic material anisotropy. Phase velocity anisotropy and its frequency dependence provide a frequency variation of the beam steering angle for plate waves (dispersion of beam steering). In strongly anisotropic composite materials, the beam steering effect is shown to provide a strong focusing of ultrasonic energy (phonon focusing). For bulk shear waves, the orthotropic composite anisotropy causes the effect of acoustic birefringence. The birefringent acoustic field provides information on stiffness anisotropy which can be caused by internal stresses, texture, molecular or/and fibre orientation. On this basis, a simple experimental technique is developed and applied for mapping of fibre orientation in composite materials. Various modes of acoustic birefringence are analyzed and applied to assessing the fibre fields in injection moulding composites and to identify the fibre lay-ups in multiply materials. The birefringence pattern is also shown to be sensitive and applicable to characterizing impact- and mechanical stress-induced damage in composites.

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