PWAS-based wireless acoustic emission sensor

H. Huang; M. Islam

doi:10.1117/12.914983

3 April 2012 PWAS-based wireless acoustic emission sensor

H. Huang, M. Islam

Proceedings Volume 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012; 834512 (2012) https://doi.org/10.1117/12.914983
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

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.

Citation Download Citation

H. Huang and M. Islam "PWAS-based wireless acoustic emission sensor", Proc. SPIE 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012, 834512 (3 April 2012); https://doi.org/10.1117/12.914983

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