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Proceedings Paper

Real-time visualization of bridge structural response through wireless MEMS sensors
Author(s): Hung-Chi Chung; Tomoyuki Enomoto; Kenneth Loh; Masanobu Shinozuka
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Paper Abstract

This study investigates the reliability and accuracy of wireless micro-electromechanical-system (MEMS)-type sensors in application of bridge structural vibration monitoring. With wireless capabilities added onto the developed sensors, it becomes unnecessary for engineers to connect enormous lengths of cables in order to measure vibration on bridges for instance. We investigated two types of MEMS accelerometers: the ADXL 202E and the Silicon Design 2210. To prove the validity of measuring acceleration by using these devices with wireless communication, we succeeded on measuring a pedestrian bridge's vibration under excitation loads in the center of span. The result had been compared with the traditional cabled sensor, PCB 393C. The wireless sensors were showed to be effective and much affordable to carry out the monitoring missions in situ.

Paper Details

Date Published: 21 July 2004
PDF: 8 pages
Proc. SPIE 5392, Testing, Reliability, and Application of Micro- and Nano-Material Systems II, (21 July 2004); doi: 10.1117/12.539263
Show Author Affiliations
Hung-Chi Chung, ImageCat, Inc. (United States)
Tomoyuki Enomoto, Univ. of California/Irvine (United States)
Kenneth Loh, Johns Hopkins Univ. (United States)
Masanobu Shinozuka, Univ. of California/Irvine (United States)

Published in SPIE Proceedings Vol. 5392:
Testing, Reliability, and Application of Micro- and Nano-Material Systems II
Norbert Meyendorf; George Y. Baaklini; Bernd Michel, Editor(s)

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