Real-time visualization of bridge structural response through wireless MEMS sensors

Hung-Chi Chung; Tomoyuki Enomoto; Kenneth Loh; Masanobu Shinozuka

doi:10.1117/12.539263

21 July 2004 Real-time visualization of bridge structural response through wireless MEMS sensors

Hung-Chi Chung, Tomoyuki Enomoto, Kenneth Loh, Masanobu Shinozuka

Proceedings Volume 5392, Testing, Reliability, and Application of Micro- and Nano-Material Systems II; (2004) https://doi.org/10.1117/12.539263
Event: NDE for Health Monitoring and Diagnostics, 2004, San Diego, CA, United States

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.

Citation Download Citation

Hung-Chi Chung, Tomoyuki Enomoto, Kenneth Loh, and Masanobu Shinozuka "Real-time visualization of bridge structural response through wireless MEMS sensors", Proc. SPIE 5392, Testing, Reliability, and Application of Micro- and Nano-Material Systems II, (21 July 2004); https://doi.org/10.1117/12.539263

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