JPS57196134A - Liquid identifying method - Google Patents

Liquid identifying method

Info

Publication number
JPS57196134A
JPS57196134A JP8171381A JP8171381A JPS57196134A JP S57196134 A JPS57196134 A JP S57196134A JP 8171381 A JP8171381 A JP 8171381A JP 8171381 A JP8171381 A JP 8171381A JP S57196134 A JPS57196134 A JP S57196134A
Authority
JP
Japan
Prior art keywords
liquid
core
identified
clad
refractive index
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.)
Pending
Application number
JP8171381A
Other languages
Japanese (ja)
Inventor
Susumu Kashiwa
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP8171381A priority Critical patent/JPS57196134A/en
Publication of JPS57196134A publication Critical patent/JPS57196134A/en
Pending 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

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)

Abstract

PURPOSE:To enable identifying of liquid to be identified having a low refractive index and detecting of water solution concentration, by using an optical transmission path in which transparent liquid is implanted into a clear pipe to form a core. CONSTITUTION:An optical transmission path 1 is constituted such that a clad 2 consists of an air layer, and clear liquid is implanted into a clear pipe 3 to form said liquid into a core 4. Light is transmitted through the core 4, and if liquid 5 to be identified is adhered to the outer periphery of the clear pipe 3 or said pipe 1 is eroded by said liquid 5, a clad 2 works in place of the liquid 5 to be identified, and strength of light outputted from the jet end of the core 4 changes to identify the type and concentration of the liquid 5 to be identified from said change. The refractive index distribution such that, since the refractive index of the core 4 is larger than that of the clad 2 due to an air layer, light is transmitted at the inside of the optical transmission path 1, but if the clad 2 produces the liquid to be identified, the refractive index of the liquid 5 to be identified is larger than that of the core 4, light leaks from the core 4 to the liquid 5 to be identified, and this causes changing of a strength of light outputted from the jet end of the core 4.
JP8171381A 1981-05-28 1981-05-28 Liquid identifying method Pending JPS57196134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8171381A JPS57196134A (en) 1981-05-28 1981-05-28 Liquid identifying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8171381A JPS57196134A (en) 1981-05-28 1981-05-28 Liquid identifying method

Publications (1)

Publication Number Publication Date
JPS57196134A true JPS57196134A (en) 1982-12-02

Family

ID=13754030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8171381A Pending JPS57196134A (en) 1981-05-28 1981-05-28 Liquid identifying method

Country Status (1)

Country Link
JP (1) JPS57196134A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62232537A (en) * 1986-04-02 1987-10-13 Mazda Motor Corp Apparatus for detecting fuel component
JPH03504536A (en) * 1988-03-04 1991-10-03 ファイバーケム、インコーポレーテッド Optical sensors to detect icing and other chemical species
CN103189727A (en) * 2010-08-10 2013-07-03 Ihi爱斯久布股份有限公司 Liquid detector and liquid identifying system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934849U (en) * 1972-06-28 1974-03-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934849U (en) * 1972-06-28 1974-03-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62232537A (en) * 1986-04-02 1987-10-13 Mazda Motor Corp Apparatus for detecting fuel component
JPH03504536A (en) * 1988-03-04 1991-10-03 ファイバーケム、インコーポレーテッド Optical sensors to detect icing and other chemical species
CN103189727A (en) * 2010-08-10 2013-07-03 Ihi爱斯久布股份有限公司 Liquid detector and liquid identifying system

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