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Single-crystal Sapphire Based Optical Polarimetric Sensor for High Temperature Measurement
- Source :
- Sensors, Vol 6, Iss 8, Pp 823-834 (2006), Sensors, Volume 6, Issue 8, Pages 823-834, Sensors (Basel, Switzerland)
- Publication Year :
- 2006
- Publisher :
- MDPI AG, 2006.
-
Abstract
- Optical sensors have been investigated and widely deployed in industrial and scientific measurement and control processes, mainly due to their accuracy, high sensitivity and immunity to electromagnetic interference and other unique characteristics. They are especially suited for harsh environments applications, where no commercial electrical sensors are available for long-term stable operations. This paper reports a novel contact optical high temperature sensor targeting at harsh environments. Utilizing birefringent single crystal sapphire as the sensing element and white light interferometric signal processing techniques, an optical birefringence based temperature sensor was developed. With a simple mechanically structured sensing probe, and an optical spectrum-coded interferometric signal processor, it has been tested to measure temperature up to 1600 °C with high accuracy, high resolution, and long-term measurement stability.
- Subjects :
- Engineering
Digital signal processor
Polarimetry
Physics::Optics
lcsh:Chemical technology
Biochemistry
Temperature measurement
Full Research Paper
Electromagnetic interference
Analytical Chemistry
Optics
high temperature measurement
lcsh:TP1-1185
Electrical and Electronic Engineering
optical sensor
Instrumentation
polarimetry
Signal processing
Birefringence
birefringence
business.industry
Atomic and Molecular Physics, and Optics
Interferometry
business
Sensitivity (electronics)
whitelight interefrometry
Subjects
Details
- ISSN :
- 14248220
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Sensors
- Accession number :
- edsair.doi.dedup.....bef83f8411fcd840583a6f4253dc0a4f