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IEEE 1985 Ultrasonics Symposium最新文献

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Two-Dimensional Displacement Analysis of Acoustic Transducer Arrays 声换能器阵列的二维位移分析
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198593
M. Matteucci, G. Scarano, E. S. Furgason, M. Pappalardo
{"title":"Two-Dimensional Displacement Analysis of Acoustic Transducer Arrays","authors":"M. Matteucci, G. Scarano, E. S. Furgason, M. Pappalardo","doi":"10.1109/ULTSYM.1985.198593","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198593","url":null,"abstract":"Typical array elements for ultrasonic visualization systems have resonance frequencies and geometrical dimensions (width/thickness) such that their resonant behaviour and two-dimensional displacement field patterns can be described by solving the Rayleigh-Lamb equations. In this work, the Rayleigh-Lamb approach is extended to a multi-element structure and the dispersion characteristics together with the displacement distributions are computed. The effects due to different materials used as separating layers between the neighboring piezoelectric elements in also taken into account. By computing the mechanical displacements and the electric field configuration when one or more piezoelectric elements are excited, a good understanding of the mechanical and electrical coupling between the elements is obtained.","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132584444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A New Method for the Design of SAW Filters SAW滤波器设计的一种新方法
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198471
Li Xingjiao, Cao Huazhe
{"title":"A New Method for the Design of SAW Filters","authors":"Li Xingjiao, Cao Huazhe","doi":"10.1109/ULTSYM.1985.198471","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198471","url":null,"abstract":"","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133592655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Theory of Image Reconstruction in Laser Scanned Acoustic Microscopy 激光扫描声学显微镜图像重建理论
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198605
R. Mueller, B. Soumekh
{"title":"Theory of Image Reconstruction in Laser Scanned Acoustic Microscopy","authors":"R. Mueller, B. Soumekh","doi":"10.1109/ULTSYM.1985.198605","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198605","url":null,"abstract":"","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131869969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Miniature Quartz Resonator Thermal Detector 微型石英谐振器热探测器
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198533
J. Ralph, R. King, J. E. Curran, J. S. Page
{"title":"Miniature Quartz Resonator Thermal Detector","authors":"J. Ralph, R. King, J. E. Curran, J. S. Page","doi":"10.1109/ULTSYM.1985.198533","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198533","url":null,"abstract":"This work describes the results of recent attempts to realise the potential performance of a 20Ox200pm square 10 pm thick quartz resonator operating at 100 MHz as a thermal infrared detector. The feasibility of small gold grid electrodes has been demonstrated, which together with a Ni/Cr structure should provide high infrared absorption. Reduction of the presently high frequency fluctuation noise will be necessary to achieve performance close to the background limit.","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133851237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Bandwidth and Diffraction Efficiency Dependence on the Polarization of Light in Acousto-Optic Interactions 声光相互作用中光偏振对带宽和衍射效率的影响
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198542
S. Li, E. Bourkoff, C. Garvin, N. Berg
{"title":"Bandwidth and Diffraction Efficiency Dependence on the Polarization of Light in Acousto-Optic Interactions","authors":"S. Li, E. Bourkoff, C. Garvin, N. Berg","doi":"10.1109/ULTSYM.1985.198542","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198542","url":null,"abstract":"We examine the case of an unguided, linearly polarized beam of light interacting with a surface acoustic wave. The focussed light beam enters a (LiNb03) crystal from the side and the diffraction efficiency is measured as a function of both deviation from Bragg angle and the sor p-polarization of the incident light. We give experimental evidence that for p-polarized light, the interaction bandwidth (i.e., the range of incident angles for which phase matching can be satisfied) for single diffraction can be twice as large as for the case of s-polarized light. This fact can be used advantageously in acousto-optic signal processing devices to increase dynamic range. We show results of an analysis which takes into account the particular interaction geometry and cornpare with experiment. We also indicate how to incorporate the gaussian nature of the incident optical beam.","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114488470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determination of Laser Beam Divergence Using the Acousto-Optic Interaction with Surface Acoustic Waves 利用声光与表面声波相互作用测定激光束发散
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198540
T. D. Black, T. Haghighatjou, D. Larson
{"title":"Determination of Laser Beam Divergence Using the Acousto-Optic Interaction with Surface Acoustic Waves","authors":"T. D. Black, T. Haghighatjou, D. Larson","doi":"10.1109/ULTSYM.1985.198540","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198540","url":null,"abstract":"Laser probing of surface acoustic waves (SAW) using proximity reference gratings was found to be sensitive to the divergence of the probing laser beam. The probing sensitivity was observed to fall off with increased separation between the reference grating and the SAW substrate due to beam divergence 11). In this paper a brief theoretical analysis using generalized plane waves has been extended to divergent Gaussian beams. The sensitivity to the probing laser beam divergence was found to increase for higher frequency SAW. Experimental measurements were made using y-cut LINb03 for z-propagation at frequencies of 17.4 MHz and 87.2 MHz corresponding to SAW wavelengths of 200 pm and 40 pm respectively. The essential features of the analysis were confirmed for the TEMoo mode of a HeNe laser for beam divergence from 300 p rad to 20 m rad.","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"351 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114826592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Recent Advance in Ultrasonic Welding of Metal and Plastics 金属和塑料的超声焊接研究进展
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198571
J. Tsujino, T. Ueoka, K. Kenmotsu
{"title":"Recent Advance in Ultrasonic Welding of Metal and Plastics","authors":"J. Tsujino, T. Ueoka, K. Kenmotsu","doi":"10.1109/ULTSYM.1985.198571","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198571","url":null,"abstract":"New ultrasonic metal and plastic welding methods with multiple vibration systems and various complex modes of same and different vibration frequency have been proposed and studied as follows ; (1) ultrasonic spot welding of metal with two vibration systems for joining thick specimens. (2) ultrasonic welding of ring shape weldment with two vibration systems (3) ultrasonic butt welding for joining of thick metal specimens end to end. (4) ultrasonic plastic welding with two vibration systems -- (A) direct welding for joining specimens with small damage and with small power. (B) transmission welding for joining thick and large welding specimens by controlling of vibration phase difference. (5) ultrasonic plastic welding with welding tip pair -- (A) welding tips vibrating vertical to welding surface, and (B) vibrating parallel to welding surfaces for joining of lapped sheet or thin plate welding specimens with the very small width. effective for joining of metal and plastics successfully.","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116854833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Dependence of Acoustic Nonlinearity Parameter on Second Phase Precipitates of Aluminum Alloys 声学非线性参数对铝合金第二相析出的影响
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198690
P. Li, W. Yost, J. Cantrell, K. Salama
{"title":"Dependence of Acoustic Nonlinearity Parameter on Second Phase Precipitates of Aluminum Alloys","authors":"P. Li, W. Yost, J. Cantrell, K. Salama","doi":"10.1109/ULTSYM.1985.198690","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198690","url":null,"abstract":"The acoustic n onlinearity parameter has been determined in the heat treatable aluminum alloys 6U61-T6, 2024-T4 and 7075-T551 using the ultrasonic harmonic generation technique . The measurements were made using a 10 MHz longitudinal u ltrasonic transducer for transmission and a capacitive transducer for the detection of the second harmonic. Preliminary results i ndicate a linear relationship between the n onlinearity parameter and the volume fraction of second phase precipitates in these alloys. This finding is consistent with the ordered dependence of the nonlinearity parameter on the molecular structure of cubic crystals for a given propagation mode. Independent measurements made of the acoustoelastic constants in the same alloys are found to exhibit a similar dependence o n second phase.","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117161519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Determination of Local Temperatures Caused by Acoustic Cavitation 声空化引起局部温度的测定
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198691
K. Suslick, Raymond E. Cline, D. A. Hammerton
{"title":"Determination of Local Temperatures Caused by Acoustic Cavitation","authors":"K. Suslick, Raymond E. Cline, D. A. Hammerton","doi":"10.1109/ULTSYM.1985.198691","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198691","url":null,"abstract":"A b s t r a c t By t h e u s e of c o m p a r a t i v e r a t e thermometry, w e have been a b l e t o d e t e r m i n e e x p e r i m e n t a l l y t h e e f f e c t i v e t e m p e r a t u r e c r e a t e d d u r i n g a c o u s t i c c a v i t a t i o n i n l i q u i d s. The sonochemical r e a c t i o n s of a s e r i e s of v o l a t i l e m e t a l c a r b o n y l s have been used a s chemical d o s i m e t e r s i n a l k a n e s o l v e n t s. We have e s t a b l i s h e d t h e e x i s t e n c e of and c o n d i t i o n s p r e s e n t i n 3 r e a c t i o n s i t e s d u r i n g a c o u s t i c c a v i t a t i o n : a g a s phase h o t-s p o t w i t h an e f f e c-t i v e t e m p e r a t u r e of 5200K and an e n v e l o p i n g , h e a t e d l i q u i d s h e l l w i t h an a v e r a g e e f f e c t i v e temp e r a t u r e o f-1900K. A s i m p l e c o n d u c t i …","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117316841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Chemically-Milled VHF 6 UHF Quartz Resonators 6 Monolithic Filters 化学研磨VHF 6 UHF石英谐振器6单片滤波器
IEEE 1985 Ultrasonics Symposium Pub Date : 1900-01-01 DOI: 10.1109/ULTSYM.1985.198522
R. Smythe, J. R. Hunt, M. D. Howard
{"title":"Chemically-Milled VHF 6 UHF Quartz Resonators 6 Monolithic Filters","authors":"R. Smythe, J. R. Hunt, M. D. Howard","doi":"10.1109/ULTSYM.1985.198522","DOIUrl":"https://doi.org/10.1109/ULTSYM.1985.198522","url":null,"abstract":"","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123714860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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