Experimental characterization of capacitive micromachined ultrasonic transducers

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Abstract

In this paper, capacitive micromachined ultrasonic transducers are fabricated using a sacrificial surface micromachining process. A testing procedure has been established in order to measure the absolute transmit and receive sensitivity spectra of the fabricated devices. The experiments are performed in oil. Pulse-echo experiments are performed and the results are compared to the pitch-catch measurements using calibrated transducers.

Source Title

Proceedings of the Ultrasonics Symposium, IEEE 2007

Publisher

IEEE

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Citation

Published Version (Please cite this version)

Language

English