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Proceedings Paper

PWAS-based wireless acoustic emission sensor
Author(s): H. Huang; M. Islam
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Paper Abstract

This paper studies the development of a PWAS-based wireless AE sensor that consumes around 2 mW. Low power charge amplifiers were designed and implemented to match the high impedance of the PWAS transducer to the low impedance of the passive wireless transponder. Two different designs of the charge amplifier were evaluated using an ultrasound pitch-catch system and pencil lead break experiments. Wireless acquisition of the AE signal was demonstrated. The low-power consumptions of the amplifiers indicate that a battery-less wireless AE sensor can be achieved using energy harvesting devices.

Paper Details

Date Published: 3 April 2012
PDF: 7 pages
Proc. SPIE 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012, 834512 (3 April 2012); doi: 10.1117/12.914983
Show Author Affiliations
H. Huang, The Univ. of Texas at Arlington (United States)
M. Islam, The Univ. of Texas at Arlington (United States)


Published in SPIE Proceedings Vol. 8345:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
Masayoshi Tomizuka; Chung-Bang Yun; Jerome P. Lynch, Editor(s)

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