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Temperature compensation for micro-vibration sensor with fiber gratings

✍ Scribed by Xingfa Dong; Yonglin Huang; Kewei Lang; Weigang Zhang; Guiyun Kai; Xiaoyi Dong

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
101 KB
Volume
42
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A technique for temperature compensation in fiber grating vibration sensor is reported. It uses two FBGs as strain‐differential sensors and its temperature effects are compensated. By using this technique, the total variation in wavelength difference within the range of 3° to 45°C is 0.03 nm, 1/14 of the uncompensated fiber Bragg grating. The output waveform is still distortionless at the vibration frequency up to 715 Hz. The factors affecting the sensitivity and the frequency bandwidth are also discussed. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 474–476, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20341

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Figure 5 Theoretical and experimental results for the gain of various antenna configurations experiments. The requirements on the ground-plane spacing are more and more relaxed then. REFERENCES 1. L. Giauffret and J.M. Laheurte, Microstrip antennas fed by con-Ž . ductor backed coplanar waveguides, E