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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 坂場 成昭中澤 利雄川崎 幸三浦上 正雄最首 貞典
- Publication Date
- 2003-03
- Publication Date (W3CDTF)
- 2003
- Alternative Title
- Research and development for the high-temperature helium-leak detection system, 2; Development of temperature sensors using optical fibre for the HTTR (Joint research)
- Periodical title
- JAERI-Tech 2003-041
- Target Audience
- 一般
- Note (General)
- 出版タイプ： NA高温ヘリウム漏えい箇所特定システムの開発の第2段階として、光ファイバ温度センサのHTTRへの適応性を検討した。光ファイバ温度センサは、漏えいしたヘリウムガスによる光ファイバの温度変化により漏えいの有無を検出する。本検討では、光ファイバ単体での検出方式に加えて、HTTRの高温機器用に保温材と一体となった検出方式の検討を行った。試験の結果、設定した目標時間2時間に対して、漏えい量が5.0~20.0cm$^{3}$/sでは、60分以内に漏えいを検知し、特に20.0cm$^{3}$/sの漏えいでは、より早い漏えい検知が可能であった。In the second stage of the research and development for a high-temperature helium-leak detection system, the temperature sensor using optical fibres was studied. The sensor detects the helium leakage by the temperature inclease surrounded opitical fibre with or without heat insulator. Moreover, the applicability of high temperature equipments as the HTTR system was studied. With the sensor we detected 5.0-20.0 cm$^{3}$/s helium leakages within 60 minutes. Also it was possible to detect earlier when the leakage level is at 20.0 cm$^{3}$/s.
- Source
- /JAERI-Tech-2003-041.pdf （fulltext）