## Abstract A novel temperature‐independent strain sensor based on a fiber Bragg grating is demonstrated. The front section of the fiber Bragg grating is fixed to a crystal plate, and the other section is linearly etched in HF acid. The reflected power of the grating varies linearly with strain and
A simple FBG sensor for strain–temperature discrimination
✍ Scribed by Parne Saidi Reddy; R.L. N. Sai Prasad; D. Sen Gupta; M. Sai Shankar; K. Srimannarayana; Umesh Tiwari; Vandana Mishra
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 496 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A simple sensor using half the length of a 3‐cm fiber Bragg grating embedded on a cantilever is proposed for the simultaneous measurement and discrimination of strain and temperature. The response of the sensor is linear from 30 to 200°C, and its strain and temperature sensitivities are found to be 3.38 pm/μm 19.05 pm/°C, respectively. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1021–1024, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25901
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