JPS57190238A - Photo load detector - Google Patents

Photo load detector

Info

Publication number
JPS57190238A
JPS57190238A JP7517081A JP7517081A JPS57190238A JP S57190238 A JPS57190238 A JP S57190238A JP 7517081 A JP7517081 A JP 7517081A JP 7517081 A JP7517081 A JP 7517081A JP S57190238 A JPS57190238 A JP S57190238A
Authority
JP
Japan
Prior art keywords
deformation
deforms
strain
load
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.)
Pending
Application number
JP7517081A
Other languages
Japanese (ja)
Inventor
Tadaharu Ko
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7517081A priority Critical patent/JPS57190238A/en
Publication of JPS57190238A publication Critical patent/JPS57190238A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
    • G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To improve noise resistance and an insulating quality, by detecting a load using light through attaching of a strain-detecting optical fiber, deforming corresponding to the deformation of an object to be measured due to a load, and a dummy fiber, being not influenced by the deformation, to the object to be measured. CONSTITUTION:A strain-detectong optical fiber 6 is attached to an object 9 so that it deforms conrresponding to the deformation when it deforms due to an external force F, and meanwhile, a dummy fiber 5 is attached to the object 9 in a condition that it is not influenced by the deformation of the object 9. Laser light, radiated from a laser oscillator 1 is separated via a beam splitter 2, it enters the two fibers 4 and 5, and it is projected on a screen 7 through a jetting ends 6 located parallel to each other. The object 9 to be measured deforms due to the external force F thereupon, and the strain-detecting optical fiber 4 deforms corresponding to the deformation of the object 9 to change length of an optical path, which results in creating an interference fringe on the screen 7. This permits the detection of a load.
JP7517081A 1981-05-19 1981-05-19 Photo load detector Pending JPS57190238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7517081A JPS57190238A (en) 1981-05-19 1981-05-19 Photo load detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7517081A JPS57190238A (en) 1981-05-19 1981-05-19 Photo load detector

Publications (1)

Publication Number Publication Date
JPS57190238A true JPS57190238A (en) 1982-11-22

Family

ID=13568451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7517081A Pending JPS57190238A (en) 1981-05-19 1981-05-19 Photo load detector

Country Status (1)

Country Link
JP (1) JPS57190238A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163397A (en) * 1977-07-27 1979-08-07 Battelle Development Corporation Optical strain gauge
JPS5626233A (en) * 1979-08-13 1981-03-13 Nippon Telegr & Teleph Corp <Ntt> Method and device for measurement of fluctuation of dynamic pressure applied to optical fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163397A (en) * 1977-07-27 1979-08-07 Battelle Development Corporation Optical strain gauge
JPS5626233A (en) * 1979-08-13 1981-03-13 Nippon Telegr & Teleph Corp <Ntt> Method and device for measurement of fluctuation of dynamic pressure applied to optical fiber

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