Microfabricated ultrasonic transducers: towards robust models and immersion devices
Date
1996-11
Editor(s)
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
1996 IEEE Ultrasonics Symposium. Proceedings
Print ISSN
1051-0117
Electronic ISSN
Publisher
IEEE
Volume
Issue
Pages
335 - 338
Language
English
Type
Journal Title
Journal ISSN
Volume Title
Series
Abstract
The successful fabrication of ultrasonic immersion transducers is reported. Transducers are observed to operate from 1 MHz to 20 MHz in water, with the frequency range limited by electronics, not the transducers. Transmission results are included which show that a single pair of transducers is able to operate in water at 4, 6, and 8 MHz with a signal to noise ratio of at least 48 dB. The same transducer pair is shown to operate in air at 6 MHz. A model is introduced which highlights the significant parameters of transducer design. The model enables the design of optimized transducers.