Ultrasonic Transducers

Materials and Design for Sensors, Actuators and Medical Applications

Edited by

  • K Nakamura, Tokyo Institute of Technology, Japan

Ultrasonic transducers are key components in sensors for distance, flow and level measurement as well as in power, biomedical and other applications of ultrasound. Ultrasonic transducers reviews recent research in the design and application of this important technology.

Part one provides an overview of materials and design of ultrasonic transducers. Piezoelectricity and basic configurations are explored in depth, along with electromagnetic acoustic transducers, and the use of ceramics, thin film and single crystals in ultrasonic transducers. Part two goes on to investigate modelling and characterisation, with performance modelling, electrical evaluation, laser Doppler vibrometry and optical visualisation all considered in detail. Applications of ultrasonic transducers are the focus of part three, beginning with a review of surface acoustic wave devices and air-borne ultrasound transducers, and going on to consider ultrasonic transducers for use at high temperature and in flaw detection systems, power, biomedical and micro-scale ultrasonics, therapeutic ultrasound devices, piezoelectric and fibre optic hydrophones, and ultrasonic motors are also described.

With its distinguished editor and expert team of international contributors,Ultrasonic transducers is an authoritative review of key developments for engineers and materials scientists involved in this area of technology as well as in its applications in sectors as diverse as electronics, wireless communication and medical diagnostics.
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Audience

Engineers and materials scientists in the electronic component industry; Engineers working with transducers; Material scientists working with piezoelectric materials and looking for an overview of their use in ultrasonic transducers; Those working in specific application areas, such as the development of ultrasonic medical treatments; Students studying specialized courses or with a project involving ultrasonic transducers

 

Book information

  • Published: August 2012
  • Imprint: Woodhead Publishing
  • ISBN: 978-1-84569-989-5


Table of Contents

Part 1 Materials and design of ultrasonic transducers: Piezoelectricity and basic con?gurations for piezoelectric ultrasonic transducers; Electromagnetic acoustic transducers; Piezoelectric ceramics for transducers; Thin-?lm PZT-based transducers; High-Curie-temperature piezoelectric single crystals of the Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ternary system. Part 2 Modelling and characterisation of ultrasonic transducers: Modelling ultrasonic-transducer performance: One-dimensional models; The boundary-element method applied to micro-acoustic devices: Zooming into the near ?eld; Electrical evaluation of piezoelectric transducers; Laser Doppler vibrometry for measuring vibration in ultrasonic transducers; Optical visualization of acoustic ?elds: The schlieren technique, the Fresnel method and the photoelastic method applied to ultrasonic transducers. Part 3 Applications of ultrasonic transducers: Surface acoustic wave (SAW) devices; Airborne ultrasound transducers; Transducers for non-destructive evaluation at high temperatures; Analysis and synthesis of frequency-diverse ultrasonic ?aw-detection systems using order statistics and neural network processors; Power ultrasonics: New technologies and applications for ?uid processing; Nonlinear acoustics and its application to biomedical ultrasonics; Therapeutic ultrasound with an emphasis on applications to the brain; Microscale ultrasonic sensors and actuators; Piezoelectric and ?bre-optic hydrophones; Ultrasonic motors.