JPH0454168B2 - - Google Patents

Info

Publication number
JPH0454168B2
JPH0454168B2 JP57216646A JP21664682A JPH0454168B2 JP H0454168 B2 JPH0454168 B2 JP H0454168B2 JP 57216646 A JP57216646 A JP 57216646A JP 21664682 A JP21664682 A JP 21664682A JP H0454168 B2 JPH0454168 B2 JP H0454168B2
Authority
JP
Japan
Prior art keywords
oil
detection
optical
optical fibers
light
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
JP57216646A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59105533A (ja
Inventor
Yasuhito Oota
Shigeru Sugizaki
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.)
Tokyo Tatsuno Co Ltd
Original Assignee
Tokyo Tatsuno Co 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 Tatsuno Co Ltd filed Critical Tokyo Tatsuno Co Ltd
Priority to JP21664682A priority Critical patent/JPS59105533A/ja
Publication of JPS59105533A publication Critical patent/JPS59105533A/ja
Publication of JPH0454168B2 publication Critical patent/JPH0454168B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • G01M3/047—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means with photo-electrical detection means, e.g. using optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
JP21664682A 1982-12-09 1982-12-09 光学式漏洩油検出装置 Granted JPS59105533A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21664682A JPS59105533A (ja) 1982-12-09 1982-12-09 光学式漏洩油検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21664682A JPS59105533A (ja) 1982-12-09 1982-12-09 光学式漏洩油検出装置

Publications (2)

Publication Number Publication Date
JPS59105533A JPS59105533A (ja) 1984-06-18
JPH0454168B2 true JPH0454168B2 (sv) 1992-08-28

Family

ID=16691696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21664682A Granted JPS59105533A (ja) 1982-12-09 1982-12-09 光学式漏洩油検出装置

Country Status (1)

Country Link
JP (1) JPS59105533A (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6370052U (sv) * 1986-10-27 1988-05-11
DE8902073U1 (sv) * 1989-02-22 1989-07-06 Kabelwerke Reinshagen Gmbh, 5600 Wuppertal, De
US5378889A (en) * 1993-09-23 1995-01-03 California Lightwave Laboratories, Inc. Method and apparatus for detecting hydrocarbon fuels in a vapor state with an absorber-expander member
CA2641048C (en) 2006-02-02 2014-09-09 Elmer H. Hara Pipeline leakage-sensing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742933B2 (sv) * 1973-06-06 1982-09-11

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742933U (sv) * 1980-08-25 1982-03-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742933B2 (sv) * 1973-06-06 1982-09-11

Also Published As

Publication number Publication date
JPS59105533A (ja) 1984-06-18

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