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Fiber bragg grating based system for temperature measurements

Tahir, Bashir Ahmed and Ali, Jalil and Abdul Rahman, Rosly (2009) Fiber bragg grating based system for temperature measurements. International Journal of Modern Physics B, 23 (10). pp. 2349-2356. ISSN 0217-9792

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Official URL: http://dx.doi.org/10.1142/S0217979209052091

Abstract

In this study, a fiber Bragg grating sensor for temperature measurement is proposed and experimentally demonstrated. In particular, we point out that the method is well-suited for monitoring temperature because they are able to withstand a high temperature environment, where standard thermocouple methods fail. The interrogation technologies of the sensor systems are all simple, low cost and effective as well. In the sensor system, fiber grating was dipped into a water beaker that was placed on a hotplate to control the temperature of water. The temperature was raised in equal increments. The sensing principle is based on tracking of Bragg wavelength shifts caused by the temperature change. So the temperature is measured based on the wavelength-shifts of the FBG induced by the heating water. The fiber grating is high temperature stable excimer-laser-induced grating and has a linear function of wavelength- temperature in the range of 0-285°C. A dynamic range of 0-285°C and a sensitivity of 0.0131 nm/°C almost equal to that of general FBG have been obtained by this sensor system. Furthermore, the correlation of theoretical analysis and experimental results show the capability and feasibility of the purposed technique

Item Type:Article
Uncontrolled Keywords:Bragg wavelength shift, Fiber Bragg grating, temperature measurement
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:14431
Deposited By: Ms Zalinda Shuratman
Deposited On:26 Aug 2011 04:59
Last Modified:26 Aug 2011 04:59

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