Development of Temperature Measurement System Using Fiber Optics Linear Transmittance Filter with Fiber Bragg Grading Sensor

Title & Authors
Development of Temperature Measurement System Using Fiber Optics Linear Transmittance Filter with Fiber Bragg Grading Sensor
Nam, Kwang Sik; Choi, Jin Gyu; Zhao, Shang; Kim, Jea Ki; Choi, Ho Min; Lee, Seok Soon;

Abstract
The fiber optical temperature sensing device was developed by using a Fiber Bragg Grading (FBG) sensor and a linear transmittance optical filter. The temperature change causes change in the FBG sensor reflectance wavelength and the reflectance wavelength from FBG sensor is transmitted to a linear transmittance filter so that the optical signal value is determined by the wavelength. The temperature can be measured by the optical signal value by passing FBG reflectance wavelength to the linear transmittance filter. Using the developed system, temperature ranges from $\small{10^{\circ}C}$ to $\small{50^{\circ}C}$ were measured and the measured data were almost linear.
Keywords
Fiber optic;Fiber bragg grating;Linear transmittance filter;
Language
Korean
Cited by
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