Acoustic Transduction
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Author | : |
Publisher | : |
Total Pages | : 141 |
Release | : 2000 |
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This report describes research performed over the period 1st January 2000 to 31st December 2000 on a MURI under Office of Naval Research contract N00014-96-1-1173 on the topic "Acoustic Transduction Materials and Devices". This program brings together researchers from the Materials Research Laboratory (MRL), the Applied Research Laboratory (ARL) and the Center for Acoustics and Vibrations (CAV) at the Pennsylvania State University. As has become customary over many years, research on the program is detailed in the technical appendices of published work, and only a brief narrative description connecting these studies is given in the text. The overall objective of the program is the development of acoustic transduction materials and devices of direct relevance to U.S. Navy needs, but also with relevant application capability in commercial sector products. A continuing emphasis is upon high performance high sensitivity sensors and upon high authority high strain actuators for transducing functions. New materials and improved material systems are being developed on the program. These studies are affording new insights into the strain mechanisms in already widely used ceramics and polymers and are developing needs for new device structures and improved drive and control strategies. There is proper emphasis upon performance and reliability under a wide range of operating conditions consonant with Navy needs.
Author | : Sam Hanish |
Publisher | : |
Total Pages | : 524 |
Release | : 1981 |
Genre | : Radiation sources |
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Author | : Kenji Uchino |
Publisher | : |
Total Pages | : |
Release | : 1999 |
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Author | : Sam Hanish |
Publisher | : |
Total Pages | : 528 |
Release | : 1984 |
Genre | : Sound-waves |
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Author | : Sam Hanish |
Publisher | : |
Total Pages | : 292 |
Release | : 1981 |
Genre | : Acoustic radiation pressure |
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Author | : Frederick V. Hunt |
Publisher | : Acoustical Society of America |
Total Pages | : 288 |
Release | : 1982 |
Genre | : Electro-acoustics |
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Total Pages | : 0 |
Release | : 1999 |
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Exploration of several new relaxor ferroelectric perovskite solid solution with morphotropic phase boundaries. New evidence of the onset of nonlinearity in soft donor doped PZTs at surprisingly low (1 V/cm) fields. Confirmation of the relaxor phase induced by electron irradiation in PVDF:TrFE copolymers, and a processing method which permits very high (4%) electrostrictive strain in the transverse direction, vital for the practical use in actuator systems. In composite transducer, "first fruits" of the cooperative program are cymbal arrays which form most effective acoustic projectors, and a new "dog bone" design which permits deeper submergence for the cymbal. Agile transducers, the 3-D acoustic intensity probe and high force high strain torsional and step and repeat systems continue to make excellent progress. In actuator studies true acoustic emission is proving to be an excellent tool in reliability studies and a new design of small-scale (mini) piezoelectric motor shows outstanding performance
Author | : Rodney F. W. Coates |
Publisher | : |
Total Pages | : 208 |
Release | : 1990 |
Genre | : Underwater acoustics |
ISBN | : |
Part of a series which is aimed primarily at a professional engineering or postgraduate student audience, this book concerns the basics of the propagation of sound in the sea, the problems of waveform analysis, underwater acoustic equipment and underwater acoustic communication.
Author | : Charles Sherman |
Publisher | : Springer Science & Business Media |
Total Pages | : 610 |
Release | : 2007-01-05 |
Genre | : Technology & Engineering |
ISBN | : 0387331395 |
The most comprehensive book on electroacoustic transducers and arrays for underwater sound Includes transducer modeling techniques and transducer designs that are currently in use Includes discussion and analysis of array interaction and nonlinear effects in transducers Contains extensive data in figures and tables needed in transducer and array design Written at a level that will be useful to students as well as to practicing engineers and scientists
Author | : Cathy van Eck |
Publisher | : Bloomsbury Publishing USA |
Total Pages | : 217 |
Release | : 2017-02-09 |
Genre | : Music |
ISBN | : 1501327607 |
Composers and sound artists have explored for decades how to transform microphones and loudspeakers from “inaudible” technology into genuinely new musical instruments. While the sound reproduction industry had claimed perfect high fidelity already at the beginning of the twentieth century, these artists found surprising ways of use – for instance tweaking microphones, swinging loudspeakers furiously around, ditching microphones in all kinds of vessels, or strapping loudspeakers to body parts of the audience. Between air and electricity traces their quest and sets forward a new theoretical framework, providing historic background on technological and artistic development, and diagrams of concert and performance set-ups. From popular noise musician Merzbow to minimalist classic Alvin Lucier, cult instrument inventor Hugh Davies, or contemporary visual artist Lynn Pook – they all aimed to make audible what was supposed to remain silent.