JPS5739317A - Manufacture of liquid level detecting sensor - Google Patents

Manufacture of liquid level detecting sensor

Info

Publication number
JPS5739317A
JPS5739317A JP11500780A JP11500780A JPS5739317A JP S5739317 A JPS5739317 A JP S5739317A JP 11500780 A JP11500780 A JP 11500780A JP 11500780 A JP11500780 A JP 11500780A JP S5739317 A JPS5739317 A JP S5739317A
Authority
JP
Japan
Prior art keywords
end parts
liquid level
optical fibers
detecting sensor
level detecting
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.)
Granted
Application number
JP11500780A
Other languages
Japanese (ja)
Other versions
JPS636812B2 (en
Inventor
Naonari Sasano
Nobuo Kobata
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP11500780A priority Critical patent/JPS5739317A/en
Publication of JPS5739317A publication Critical patent/JPS5739317A/en
Publication of JPS636812B2 publication Critical patent/JPS636812B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

PURPOSE:To obtain a liquid level detecting sensor of less light transmission losses by aligning the plural end parts of optical fibers having cores and clads, sticking these by fusion under heating to a tapered shape, and further reheating the tapered part thereby forming the end parts to a spherical shape. CONSTITUTION:End parts of two pieces of optical fibers 3 consisting of cores 7 and clads 8 covering these are aligned and arranged in the same direction. The respective end parts are heated to be stuck by fusion into one body as a tapered part 9. Further, the tapered part 9 is heated to form a spherical part 5 by the surface tension of glass. If the optical fibers for liquid level detection are constituted in this way, the optical fibers of less optical transmission losses are formed without forming air bubbles in the part 5.
JP11500780A 1980-08-20 1980-08-20 Manufacture of liquid level detecting sensor Granted JPS5739317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11500780A JPS5739317A (en) 1980-08-20 1980-08-20 Manufacture of liquid level detecting sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11500780A JPS5739317A (en) 1980-08-20 1980-08-20 Manufacture of liquid level detecting sensor

Publications (2)

Publication Number Publication Date
JPS5739317A true JPS5739317A (en) 1982-03-04
JPS636812B2 JPS636812B2 (en) 1988-02-12

Family

ID=14651969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11500780A Granted JPS5739317A (en) 1980-08-20 1980-08-20 Manufacture of liquid level detecting sensor

Country Status (1)

Country Link
JP (1) JPS5739317A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6176686A (en) * 1984-01-25 1986-04-19 ニッテク Porous metal structure and its production and use
FR2610720A1 (en) * 1987-02-06 1988-08-12 Bosch Gmbh Robert Optical filling level indicator
JPH01138425A (en) * 1988-07-29 1989-05-31 Showa Electric Wire & Cable Co Ltd Liquid identifying method
EP0684655A1 (en) 1994-05-20 1995-11-29 Sumitomo Electric Industries, Ltd. Electrode for alkaline storage battery and method of manufacturing the same
US5725750A (en) * 1996-04-19 1998-03-10 Sumitomo Electric Industries, Ltd. Process for producing porous iron metal body
US6197251B1 (en) 1996-07-29 2001-03-06 Matsushita Electric Industrial Co., Ltd. Porous metal material, and method for manufacturing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032016A (en) * 1989-05-31 1991-01-08 Nec Corp Imprinter for interrupter enclosure case

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6176686A (en) * 1984-01-25 1986-04-19 ニッテク Porous metal structure and its production and use
FR2610720A1 (en) * 1987-02-06 1988-08-12 Bosch Gmbh Robert Optical filling level indicator
JPH01138425A (en) * 1988-07-29 1989-05-31 Showa Electric Wire & Cable Co Ltd Liquid identifying method
EP0684655A1 (en) 1994-05-20 1995-11-29 Sumitomo Electric Industries, Ltd. Electrode for alkaline storage battery and method of manufacturing the same
US5561002A (en) * 1994-05-20 1996-10-01 Sumitomo Electric Industries, Ltd. Electrode for alkaline storage battery and method of manufacturing
US5725750A (en) * 1996-04-19 1998-03-10 Sumitomo Electric Industries, Ltd. Process for producing porous iron metal body
US6197251B1 (en) 1996-07-29 2001-03-06 Matsushita Electric Industrial Co., Ltd. Porous metal material, and method for manufacturing same

Also Published As

Publication number Publication date
JPS636812B2 (en) 1988-02-12

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