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

Venkata Reddy Mamidi; Srimannarayana Kamineni; L. N. Sai Prasad Ravinuthala; Manohar Martha; Sai Shankar Madhuvarasu; Venkatappa Rao Thumu

doi:10.1117/1.JRS.9.094098

13 May 2015 High-temperature measurement using fiber Bragg grating sensor accompanied by a low-cost detection system

Venkata Reddy Mamidi, Srimannarayana Kamineni, L. N. Sai Prasad Ravinuthala, Manohar Martha, Sai Shankar Madhuvarasu, Venkatappa Rao Thumu

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 9, Issue 1, 094098 (May 2015). https://doi.org/10.1117/1.JRS.9.094098

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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Venkata Reddy Mamidi, Srimannarayana Kamineni, L. N. Sai Prasad Ravinuthala, Manohar Martha, Sai Shankar Madhuvarasu, and 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

Published: 13 May 2015

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