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Structural Health Monitoring System Employing Smart Sensor Technology Part 1: Development and Performance Test of Smart Sensor  

Heo, Gwang Hee (건양대학교 토목공학과)
Lee, Woo Sang (한국건설기술연구원 구조연구부)
Kim, Man Goo (충남대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.11, no.2, 2007 , pp. 134-144 More about this Journal
Abstract
In this study, a smart sensor unit is developed by using the smart sensor technology that is being rapidly developed in recent years for structural health monitoring system, and its performance is evaluated through various experiments, and also, damage detection experiment is performed on a model structure. This paper as the first half of this study contains the development and performance evaluation of the smart sensor. In the latter half of this study, structure damage detection experiment is performed for the application of verified smart sensor unit into structural health monitoring, and it is compared with a wire measurement system. The smart sensor is developed by using high-power wireless modem, MEMS Sensor and AVR microcontroller, and an embedded program is also developed for the control and operation of the sensor unit. To verify the performance of the smart sensor, many experiments are performed for sensitivity and resolution analysis tests, data acquisition by using cantilever beam and shaker, and on-site application using actual bridge. As a result, the smart sensor proves to be satisfactory in its performance.
Keywords
Smart sensor technology; Structural health monitoring; Damage detection; (SHM);
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