High spatial resolution distributed fiber optic temperature sensor

Anthony A. Boiarski; Vincent D. McGinniss; G. Turhan-Sayan

doi:10.1117/12.22973

Abstract

A distributed fiber optic temperature sensing system was developed which consisted of a high-resolution optical time domain reflectometer (OTOR) and a special optical fiber sensor. Several 1 kilometer lengths of prototype sensing fibers were formed by coating a modified, ultraviolet light curable polymer cladding material onto a core glass during fiber production. By monitoring changes in Rayleigh backscattered light from the fiber; local temperature changes were measured along the fiber length. A demonstration system was assembled with a 20 meter sensing fiber and extensive data were collected. These measurements indicated that hot spots as small as 10 cm could be detected over a temperature range of 0 to 150°C with a measurement accuracy of ±°C

Citation Download Citation

Anthony A. Boiarski, Anthony A. Boiarski, Vincent D. McGinniss, Vincent D. McGinniss, G. Turhan-Sayan, G. Turhan-Sayan, } "High spatial resolution distributed fiber optic temperature sensor", Proc. SPIE 1338, Optoelectronic Devices and Applications, (1 November 1990); doi: 10.1117/12.22973; https://doi.org/10.1117/12.22973

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