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Sensors 2008, 8(11), 6825-6845; doi:10.3390/s8116825

An All Fiber White Light Interferometric Absolute Temperature Measurement System

Information and Communication Engineering Dept. Hansei University, 604-5 Dangjeong-dong Gunpocity Kyunggi-do, Korea
Received: 9 August 2008 / Revised: 4 October 2008 / Accepted: 27 October 2008 / Published: 1 November 2008
(This article belongs to the Section Chemical Sensors)
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Abstract

Recently the author of this article proposed a new signal processing algorithm for an all fiber white light interferometer. In this article, an all fiber white light interferometric absolute temperature measurement system is presented using the previously proposed signal processing algorithm. Stability and absolute temperature measurement were demonstrated. These two tests demonstrated the feasibility of absolute temperature measurement with an accuracy of 0.015 fringe and 0.0005 fringe, respectively. A hysteresis test from 373K to 873K was also presented. Finally, robustness of the sensor system towards laser diode temperature drift, AFMZI temperature drift and PZT non-linearity was demonstrated.
Keywords: All fiber white light interferometry; signal processing algorithm; absolute temperature measurement All fiber white light interferometry; signal processing algorithm; absolute temperature measurement
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Kim, J.H. An All Fiber White Light Interferometric Absolute Temperature Measurement System. Sensors 2008, 8, 6825-6845.

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