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Sensors 2006, 6(8), 823-834; doi:10.3390/s6080823
Article

Single-crystal Sapphire Based Optical Polarimetric Sensor for High Temperature Measurement

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Received: 19 December 2005; Accepted: 12 February 2006 / Published: 21 August 2006
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Abstract: Optical sensors have been investigated and widely deployed in industrial andscientific measurement and control processes, mainly due to their accuracy, high sensitivityand immunity to electromagnetic interference and other unique characteristics. They areespecially suited for harsh environments applications, where no commercial electricalsensors are available for long-term stable operations. This paper reports a novel contactoptical high temperature sensor targeting at harsh environments. Utilizing birefringentsingle crystal sapphire as the sensing element and white light interferometric signalprocessing techniques, an optical birefringence based temperature sensor was developed.With a simple mechanically structured sensing probe, and an optical spectrum-codedinterferometric signal processor, it has been tested to measure temperature up to 1600 °Cwith high accuracy, high resolution, and long-term measurement stability.
Keywords: optical sensor; high temperature measurement; polarimetry; birefringence; whitelight interefrometry optical sensor; high temperature measurement; polarimetry; birefringence; whitelight interefrometry
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Zhang, Y.; Pickrell, G.R.; Qi, B.; Safaai-Jazi, A.; Wang, A. Single-crystal Sapphire Based Optical Polarimetric Sensor for High Temperature Measurement. Sensors 2006, 6, 823-834.

AMA Style

Zhang Y, Pickrell GR, Qi B, Safaai-Jazi A, Wang A. Single-crystal Sapphire Based Optical Polarimetric Sensor for High Temperature Measurement. Sensors. 2006; 6(8):823-834.

Chicago/Turabian Style

Zhang, Yibing; Pickrell, Gary R.; Qi, Bing; Safaai-Jazi, Ahmad; Wang, Anbo. 2006. "Single-crystal Sapphire Based Optical Polarimetric Sensor for High Temperature Measurement." Sensors 6, no. 8: 823-834.



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