title: Development of a 2-channel embedded infrared fiber-optic temperature sensor using silver halide optical fibers.
abstract: A 2-channel embedded infrared fiber-optic temperature sensor was fabricated using two identical silver halide optical fibers for accurate thermometry without complicated calibration processes. In this study, we measured the output voltages of signal and reference probes according to temperature variation over a temperature range from 25 to 225 °C. To decide the temperature of the water, the difference between the amounts of infrared radiation emitted from the two temperature sensing probes was measured. The response time and the reproducibility of the fiber-optic temperature sensor were also obtained. Thermometry with the proposed sensor is immune to changes if parameters such as offset voltage, ambient temperature, and emissivity of any warm object. In particular, the temperature sensing probe with silver halide optical fibers can withstand a high temperature/pressure and water-chemistry environment. It is expected that the proposed sensor can be further developed to accurately monitor temperature in harsh environments.
authors.affiliation: School of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University, 322 Danwol-dong, Chungju-si, Chungcheongbuk-do, 380-701, Korea. wonzip@naver.com
authors.forename: Wook Jae
authors.initials: WJ
authors.lastname: Yoo
authors.forename: Kyoung Won
authors.initials: KW
authors.lastname: Jang
authors.forename: Jeong Ki
authors.initials: JK
authors.lastname: Seo
authors.forename: Jinsoo
authors.initials: J
authors.lastname: Moon
authors.forename: Ki-Tek
authors.initials: KT
authors.lastname: Han
authors.forename: Jang-Yeon
authors.initials: JY
authors.lastname: Park
authors.forename: Byung Gi
authors.initials: BG
authors.lastname: Park
authors.forename: Bongsoo
authors.initials: B
authors.lastname: Lee
mesh_terms: D002138:Calibration; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D006219:Halogens / Q000737:chemistry*; D007259:Infrared Rays; D055100:Optical Fibers; D015203:Reproducibility of Results; D012834:Silver / Q000737:chemistry*; D013696:Temperature; D014867:Water / Q000737:chemistry
chemical_list: D006219:Halogens; D014867:Water; D012834:Silver