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Journal of Applied Remote Sensing

High-temperature measurement using fiber Bragg grating sensor accompanied by a low-cost detection system
Author(s): Venkata Reddy Mamidi; Srimannarayana Kamineni; L. N. Sai Prasad Ravinuthala; Manohar Martha; Sai Shankar Madhuvarasu; Venkatappa Rao Thumu
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Paper 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%.

Paper Details

Date Published: 13 May 2015
PDF: 10 pages
J. Appl. Remote Sens. 9(1) 094098 doi: 10.1117/1.JRS.9.094098
Published in: Journal of Applied Remote Sensing Volume 9, Issue 1
Show Author Affiliations
Venkata Reddy Mamidi, National Institute of Technology, Warangal (India)
Srimannarayana Kamineni, National Institute of Technology, Warangal (India)
L. N. Sai Prasad Ravinuthala, National Institute of Technology, Warangal (India)
Manohar Martha, National Institute of Technology, Warangal (India)
Sai Shankar Madhuvarasu, National Institute of Technology, Warangal (India)
Venkatappa Rao Thumu, National Institute of Technology, Warangal (India)


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