13 May 2015 High-temperature measurement using fiber Bragg grating sensor accompanied by a low-cost detection system
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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%.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Venkata Reddy Mamidi, Venkata Reddy Mamidi, Srimannarayana Kamineni, Srimannarayana Kamineni, L. N. Sai Prasad Ravinuthala, L. N. Sai Prasad Ravinuthala, Manohar Martha, Manohar Martha, Sai Shankar Madhuvarasu, Sai Shankar Madhuvarasu, Venkatappa Rao Thumu, Venkatappa Rao Thumu, } "High-temperature measurement using fiber Bragg grating sensor accompanied by a low-cost detection system," Journal of Applied Remote Sensing 9(1), 094098 (13 May 2015). https://doi.org/10.1117/1.JRS.9.094098 . Submission:
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