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Title: Simultaneous strain and temperature measurement using a superstructure fiber Bragg grating
Authors: Guan, Bai-ou
Tam, Hwa-yaw
Tao, Xiaoming
Dong, Xiao-yi
Subjects: Fiber Bragg grating
Long-period grating
Simultaneous measurement of strain and temperature
Issue Date: Jun-2000
Publisher: IEEE
Source: IEEE photonics technology letters, June 2000, v. 12, no. 6, p. 675-677.
Abstract: A novel and simple fiber-optic sensor based on a superstructure fiber Bragg grating (SFBG) for simultaneous strain and temperature measurement is proposed and demonstrated. The transmission spectrum of the sensor possesses several narrow-band loss peaks situated on the slope of a broad-band loss peak. By measuring the transmitted intensity and wavelength at one of the loss peaks, strain and temperature can be determined simultaneously. The accuracy of the sensor in measuring strain and temperature is estimated to be ±20 µε in a range from 0 to 1200 µε and ±1.2 °C from 20 °C to 120 °C, respectively.
Rights: © 2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Type: Journal/Magazine Article
DOI: 10.1109/68.849081
ISSN: 1041-1135
Appears in Collections:EE Journal/Magazine Articles
ITC Journal/Magazine Articles

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