Low-Temperature Radiometric Measurements Using a Silver Halide Optical Fiber and Infrared Optical Devices |
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Authors: | Bongsoo Lee Wook Jae Yoo Dong Hyun Cho Kyoung Won Jang Soon-Cheol Chung Gye-Rae Tack |
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Institution: | (1) School of Biomedical Engineering, College of Biomedical and Health Science, Research Institute of Biomedical Engineering, Konkuk University, Chungju, 380-701, Korea |
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Abstract: | In this study, we measured an infrared radiation which is transferred by a silver halide optical fiber from a heat source
using a radiometer system for low-temperature measurements. To increase the amount of infrared radiation through the silver
halide optical fiber and to the pyroelectric sensor, infrared optical devices used were an infrared focusing lens and a collimator.
The relationship between the temperatures of a heat source and the measured radiometer signals were determined. The measurable
temperature range of a fiber-optic temperature sensor using a pyroelectric sensor was from 298 to 333 K. It is expected that
a noncontact low-temperature sensor using an infrared optical fiber can be developed for medical and industrial usages based
on the results of this study. |
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Keywords: | fiber optic sensor infrared radiation noncontact temperature sensor pyroelectric sensor silver halide optical fiber |
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