Compensation network design for capacitive ultrasonic transducers

The frequency response characteristic of a through transmission Capacitive Ultrasonic Transducer (CUT) system is quite often dominated by membrane resonances of the transmit and receive devices and transmission channel distortion. Simple analog filtering stages may be appropriately designed to compe...

Full description

Saved in:
Bibliographic Details
Main Authors: McSweeney, S.G, Wright, W.M.D
Format: Conference Proceeding
Language:English
Subjects:
Sensing devices and transducers
Sonic and ultrasonic transducers
Transduction
devices for the generation and reproduction of sound
Ultrasonics, quantum acoustics, and physical effects of sound
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The frequency response characteristic of a through transmission Capacitive Ultrasonic Transducer (CUT) system is quite often dominated by membrane resonances of the transmit and receive devices and transmission channel distortion. Simple analog filtering stages may be appropriately designed to compensate for the most pronounced of these channel effects. In many ultrasonic inspection applications a reasonable SNR of the received signal across the passband is important since frequency dependant attenuation is being measured. The design and simulation of Zobel T, lattice, and biquadratic op amp cascaded equalisation filter architectures to address this issue are presented in this work. (6 pages)
DOI:10.1049/cp.2009.1703