Process for mounting and packaging of fiber Bragg grating strain sensors for use in harsh environment applications

Vincent P. Wnuk; Alexis Mendez; Steve Ferguson; Tom Graver

doi:10.1117/12.601971

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16 May 2005 Process for mounting and packaging of fiber Bragg grating strain sensors for use in harsh environment applications

Vincent P. Wnuk, Alexis Mendez, Steve Ferguson, Tom Graver

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Proceedings Volume 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems; (2005) https://doi.org/10.1117/12.601971
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

In this paper, we report the development of a new bonding agent and method for the surface mounting of optical fiber Bragg grating strain and temperature sensors for use in harsh environments. The compound is based on a combination of ceramic fillers with an epoxy binder that is applied with a brush technique. Samples of optical fiber Bragg gratings were successfully encapsulated and mounted on metal shims. The packaged sensors were tested for strain (+/- 1000µε) and temperature (-20 to +120 °C) response. The encapsulated sensors display a linear response with an increase in the temperature sensitivity of the FBG, with a factor of 24.37pm/°C, and a strain gauge factor of 1.25pm/με.

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Vincent P. Wnuk, Alexis Mendez, Steve Ferguson, and Tom Graver "Process for mounting and packaging of fiber Bragg grating strain sensors for use in harsh environment applications", Proc. SPIE 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems, (16 May 2005); https://doi.org/10.1117/12.601971

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