A Novel Long Period Fiber Grating Sensor for Large Strain Measurement in High Temperature Environment
Abstract
Critical buildings such as hospitals and police stations must remain functional immediately following a major earthquake event. Due to earthquake effects, they often experience large strains, leading to progressive collapses. Therefore, monitoring and assessing the large strain condition of critical buildings is of paramount importance to post-earthquake responses and evacuations in earthquake-prone regions. In this study, a novel large strain sensor based on the long period fiber grating (LPFG) technology is proposed and developed. CO2 laser induced LPFG sensors are characterized for such mechanical properties as strain sensitivity in extension and flexure, sensor stability, and measurement range. For practical applications, the need for LPFG sensor packaging is identified and verified in laboratory implementations. By introducing various strain transfer mechanisms, the strain sensitivity of LPFG sensors can be customized for different applications at corresponding strain transfer ratios.
Recommended Citation
Y. Huang et al., "A Novel Long Period Fiber Grating Sensor for Large Strain Measurement in High Temperature Environment," Proceedings of the ANCRiSST Workshop (2009, Boston, MA), Asian-Pacific Network of Centers for Research in Smart Structures Technology (ANCRiSST), Jul 2009.
Meeting Name
Asian-Pacific Network of Centers for Research in Smart Structures Technology (ANCRiSST) Workshop (2009: Jul. 28-31, Boston, MA)
Department(s)
Civil, Architectural and Environmental Engineering
Second Department
Electrical and Computer Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2009 Asian-Pacific Network of Centers for Research in Smart Structures Technology (ANCRiSST), All rights reserved.
Publication Date
01 Jul 2009
