Improvement of Sensitivity to Temperature of Optical Fiber Sensor at Cryogenic Temperature

Monitoring the temperature inside superconducting magnets is an effective way to detect failures and prevent damage to the magnet. It is possible to measure the multipoint temperatures with one optical fiber sensor thread. The sensor is suitable for measuring the temperature inside cryogenic equipme...

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Bibliographic Details
Published inQuarterly Report of RTRI Vol. 56; no. 2; pp. 143 - 147
Main Authors SUGINO, Motohiko, OGATA, Masafumi, MIZUNO, Katsutoshi, HASEGAWA, Hitoshi
Format Journal Article
LanguageEnglish
Published Tokyo Railway Technical Research Institute 01.01.2015
Japan Science and Technology Agency
Subjects
cryogenic equipment
Cryogenic temperature
Insulation
measuring temperature
Monitoring
Monitors
optical fiber sensor
Optical fibers
Sensors
superconducting magnet
Superconducting magnets
Temperature sensors
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Summary:Monitoring the temperature inside superconducting magnets is an effective way to detect failures and prevent damage to the magnet. It is possible to measure the multipoint temperatures with one optical fiber sensor thread. The sensor is suitable for measuring the temperature inside cryogenic equipment because of its low heat invasion and high voltage insulation in comparison with the resistance temperature sensors such as CERNOX, thermocouples, etc. However, there have been almost no cases where the optical fiber sensors have actually been used at cryogenic temperature. Investigations where therefore carried out into optical fiber temperature sensors that can be used at cryogenic temperature, to monitor the temperature inside superconducting magnets.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0033-9008
1880-1765
DOI:10.2219/rtriqr.56.143