Investigation of the embedded fiber bragg grating temperature sensor

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Investigation of the embedded fiber bragg grating temperature sensor

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Title: Investigation of the embedded fiber bragg grating temperature sensor
Author: Tran, Thi Tam; Dang, Quoc Trung; Tran, Anh Vu; Le, Huu Minh; Do, Ngoc Chung
Abstract: An embedded fiber Bragg grating (FBG) sensor, which fabricated in IMS, for temperature sensing was proposed. The temperature responses of the in-fiber Bragg gratings (FBGs) have been investigated. It was found that these responses ranged from 10.6 pm/°C to 12.0 pm/°C. The temperature sensitivity of the FBGs was 0.2°C. The strain responses remained temperature independent over a temperature range of 20 – 180 C. The results obtained are in agreement, within the experimental error, with predictions based on material parameters. Although the temperature response is nonlinear over the temperature range 20 °C to 180 °C, in practical systems the temperature response of the sensor may be assumed to be linear within the temperature range 20 °C to 80 °C.
Description: VNU Journal of Science, Mathematics - Physics. Vol. 23 (2007), No 4, P. 237-242
URI: http://hdl.handle.net/123456789/1086
Date: 2007

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