JPH0449905B2 - - Google Patents

Info

Publication number
JPH0449905B2
JPH0449905B2 JP60146789A JP14678985A JPH0449905B2 JP H0449905 B2 JPH0449905 B2 JP H0449905B2 JP 60146789 A JP60146789 A JP 60146789A JP 14678985 A JP14678985 A JP 14678985A JP H0449905 B2 JPH0449905 B2 JP H0449905B2
Authority
JP
Japan
Prior art keywords
optical fiber
humidity
gas
light
measured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP60146789A
Other languages
English (en)
Japanese (ja)
Other versions
JPS629255A (ja
Inventor
Kenji Kaminaga
Shinichi Tsucha
Teruaki Tsutsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Tokyo Electric Power Co Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Hitachi Cable Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Electric Power Co Inc, Hitachi Cable Ltd filed Critical Tokyo Electric Power Co Inc
Priority to JP14678985A priority Critical patent/JPS629255A/ja
Publication of JPS629255A publication Critical patent/JPS629255A/ja
Publication of JPH0449905B2 publication Critical patent/JPH0449905B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
    • G01N21/431—Dip refractometers, e.g. using optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
JP14678985A 1985-07-05 1985-07-05 湿度の測定方法およびこれに使用する湿度センサ Granted JPS629255A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14678985A JPS629255A (ja) 1985-07-05 1985-07-05 湿度の測定方法およびこれに使用する湿度センサ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14678985A JPS629255A (ja) 1985-07-05 1985-07-05 湿度の測定方法およびこれに使用する湿度センサ

Publications (2)

Publication Number Publication Date
JPS629255A JPS629255A (ja) 1987-01-17
JPH0449905B2 true JPH0449905B2 (US20080094685A1-20080424-C00004.png) 1992-08-12

Family

ID=15415572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14678985A Granted JPS629255A (ja) 1985-07-05 1985-07-05 湿度の測定方法およびこれに使用する湿度センサ

Country Status (1)

Country Link
JP (1) JPS629255A (US20080094685A1-20080424-C00004.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2716057B2 (ja) * 1989-03-24 1998-02-18 住友電気工業株式会社 光ファイバ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523480A (en) * 1975-06-27 1977-01-11 Nippon Denso Co Ltd Vapour and frost detecting device
JPS58190742A (ja) * 1982-04-30 1983-11-07 Matsushita Electric Works Ltd 湿度検出方式
JPS5992332A (ja) * 1982-11-17 1984-05-28 アイ・テイ・テイ・インダストリ−ズ・インコ−ポレ−テツド 水分検出器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476785U (US20080094685A1-20080424-C00004.png) * 1977-11-09 1979-05-31

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523480A (en) * 1975-06-27 1977-01-11 Nippon Denso Co Ltd Vapour and frost detecting device
JPS58190742A (ja) * 1982-04-30 1983-11-07 Matsushita Electric Works Ltd 湿度検出方式
JPS5992332A (ja) * 1982-11-17 1984-05-28 アイ・テイ・テイ・インダストリ−ズ・インコ−ポレ−テツド 水分検出器

Also Published As

Publication number Publication date
JPS629255A (ja) 1987-01-17

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