Development of fiber Bragg-grating-based soil pressure transducer for measuring pavement response

Chang, Chin‐Chen; Johnson, Gregg A.; Vohra, S. T.; Althouse, Bryan

doi:10.1117/12.388139

Cited by 3 publications

(1 citation statement)

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“…Chang et al developed innovative pressure transducers using FBG strain sensors [52]. They were used for performance evaluation of pavements and weigh-in-motion measurement.…”

Section: Development Of Fbg-based Geohazard Monitoring Systemsmentioning

confidence: 99%

FBG-Based Monitoring of Geohazards: Current Status and Trends

Zhu

Shi

Zhang

2017

Sensors

111

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In recent years, natural and anthropogenic geohazards have occured frequently all over the world, and field monitoring is becoming an increasingly important task to mitigate these risks. However, conventional geotechnical instrumentations for monitoring geohazards have a number of weaknesses, such as low accuracy, poor durability, and high sensitivity to environmental interferences. In this aspect, fiber Bragg grating (FBG), as a popular fiber optic sensing technology, has gained an explosive amount of attention. Based on this technology, quasi-distributed sensing systems have been established to perform real-time monitoring and early warning of landslides, debris flows, land subsidence, earth fissures and so on. In this paper, the recent research and development activities of applying FBG systems to monitor different types of geohazards, especially those triggered by human activities, are critically reviewed. The working principles of newly developed FBG sensors are briefly introduced, and their features are summarized. This is followed by a discussion of recent case studies and lessons learned, and some critical problems associated with field implementation of FBG-based monitoring systems. Finally the challenges and future trends in this research area are presented.

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“…Chang et al developed innovative pressure transducers using FBG strain sensors [52]. They were used for performance evaluation of pavements and weigh-in-motion measurement.…”

Section: Development Of Fbg-based Geohazard Monitoring Systemsmentioning

confidence: 99%