Sensor and Platform Technologies

High-temperature measurement using fiber Bragg grating sensor accompanied by a low-cost detection system

[+] Author Affiliations
Venkata Reddy Mamidi, Srimannarayana Kamineni, L. N. Sai Prasad Ravinuthala, Manohar Martha, Sai Shankar Madhuvarasu, Venkatappa Rao Thumu

National Institute of Technology, Department of Physics, Warangal 506004, India

J. Appl. Remote Sens. 9(1), 094098 (May 13, 2015). doi:10.1117/1.JRS.9.094098
History: Received January 7, 2015; Accepted April 14, 2015
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Abstract.  A fiber Bragg grating (FBG)–based high-temperature sensor accompanied by a low-cost interrogation scheme with liquid-crystal display (LCD) has been designed, developed, and tested. The sensor probe is configured by encapsulating a femtosecond laser drawn FBG with an aluminum nitride capillary tube, and is used to measure the temperature from 20°C to 650°C. The interrogation system consists of a long period fiber grating, two photodiodes, a 2-channel transimpedance amplifier, and a field-programmable gate array with an LCD. It displays the temperature directly in °C with a resolution of 1°C. The sensor output is found to be linear with coefficient of 0.999, and independent of source power fluctuations. The results showed that the sensor has good accuracy with a negligible error bar of ±1.23%.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Venkata Reddy Mamidi ; Srimannarayana Kamineni ; L. N. Sai Prasad Ravinuthala ; Manohar Martha ; Sai Shankar Madhuvarasu, et al.
"High-temperature measurement using fiber Bragg grating sensor accompanied by a low-cost detection system", J. Appl. Remote Sens. 9(1), 094098 (May 13, 2015). ; http://dx.doi.org/10.1117/1.JRS.9.094098


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