Title

Harsh Environments Minimally Invasive Optical Sensing Technique For Extreme Temperatures: 1000 °C And Approaching 2500 °C

Keywords

Harsh Environment; High Temperature Sensor; Optical Sensor; Silicon Carbide

Abstract

To the best of our knowledge, for the first time is designed and demonstrated a single crystal Silicon Carbide (SiC)-based minimally invasive smart optical sensor suited for harsh environments and temperatures reaching 2500 °C. The novel sensor design is based on an agile wavelength source, instantaneous single wavelength interferometry, full optical power cycle data acquisition, free-space targeted laser beam, multiple single crystal thick SiC optical frontend chips, and multi-wavelength signal processing for unambiguous temperature measurements to form a fast and distributed smart optical sensor system. Experiments conducted using a 1550 nm eye safe band tunable laser and a 300 micron coating-free thick SiC chip demonstrate temperature sensing from room temperature to 1000 °C with a measured 1.3 °C resolution. Applications for the proposed sensor include use in fossil fuel-based power systems, aerospace/aircraft systems, satellite systems, deep space exploration systems, and drilling and oil mining industries.

Publication Date

12-13-2005

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

5855 PART II

Number of Pages

687-690

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.623399

Socpus ID

28544436973 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/28544436973

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