Wavelength division multiplexed fiber bragg grating vibration sensor array with temperature compensation

被引：0
|
作者：
Tanaka, Satoshi [1 ]
Yokosuka, Hiroki [1 ]
Inamoto, Kiyoyuki [1 ]
Takahashi, Nobuaki [1 ]
机构：
[1] Department of Communications Engineering, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 2006年 / 45卷 / 5 B期
关键词：
We have developed a novel method of wavelength division multiplexed operation of thermally stabilized fiber Bragg grating (FBG) vibration sensors in that simultaneous multipoint vibration detection with a temperature-insensitive operation can be achieved. One of the sensing elements of the arrayed sensors consists of a pair of FBGs; one is used for providing a narrow-spectrum light from a broad-spectrum incoherent optical source and the other is used for vibration sensing. The paired FBG configuration enables us to compensate the temperature effects that are commonly applied to the FBGs used. In the experiment; two sensing elements are arranged in tandem and the detection of simultaneous two-point multiple vibrations and the measurement of an elastic wave propagating in a metal bar are demonstrated. © 2006 The Japan Society of Applied Physics;
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Journal article (JA)
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页码：4588 / 4590
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