JPS56111407A - Shaft torsion detecting method - Google Patents

Shaft torsion detecting method

Info

Publication number
JPS56111407A
JPS56111407A JP1432880A JP1432880A JPS56111407A JP S56111407 A JPS56111407 A JP S56111407A JP 1432880 A JP1432880 A JP 1432880A JP 1432880 A JP1432880 A JP 1432880A JP S56111407 A JPS56111407 A JP S56111407A
Authority
JP
Japan
Prior art keywords
rotating shaft
axial direction
torsion
light beams
reliability
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
JP1432880A
Other languages
Japanese (ja)
Inventor
Seiichi Ogoshi
Akiya Goto
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 JP1432880A priority Critical patent/JPS56111407A/en
Publication of JPS56111407A publication Critical patent/JPS56111407A/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
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/109—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving measuring phase difference of two signals or pulse trains

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To detect shaft torsion with high sensitivity and reliability without contacting by forming segments on the circumferential surface of a rotating shaft at equal intervals and in the axial direction, by irradiating them with two spot beams of a small diameter in the axial direction and at an interval of prescribed distance, and by detecting the phase difference between the reflected light beams. CONSTITUTION:Onto the circumferential surface of rotating shaft 1, thin lines 2 of about 100mm. in length are provided in the axial direction and at prescribed pitches (several - tens mum). Those are formed by laser beam engraving. In two photodetector 3 and 4 at an interval of prescribed distance in the axial direction, light beams from light souces 7 of laser diodes, etc., are made via lenses 8 into extremely small spots, which are caused to strike the rotating shaft and reflected light beams are detected by photodetectors 10 via half-mirrors 9. Their outputs are compared with each other by phase comparing circuit 11 and the torsion of the rotating shaft is measured by using the phase difference. Thus, the torsion of rotating shaft 1 can be measured with high sensitivity and reliability without contacting.
JP1432880A 1980-02-08 1980-02-08 Shaft torsion detecting method Pending JPS56111407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1432880A JPS56111407A (en) 1980-02-08 1980-02-08 Shaft torsion detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1432880A JPS56111407A (en) 1980-02-08 1980-02-08 Shaft torsion detecting method

Publications (1)

Publication Number Publication Date
JPS56111407A true JPS56111407A (en) 1981-09-03

Family

ID=11857995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1432880A Pending JPS56111407A (en) 1980-02-08 1980-02-08 Shaft torsion detecting method

Country Status (1)

Country Link
JP (1) JPS56111407A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131033U (en) * 1983-02-22 1984-09-03 株式会社小野測器 Photoelectric torque detector
JPS61127435U (en) * 1985-01-29 1986-08-09
JPH02154105A (en) * 1988-12-05 1990-06-13 Nec Corp Inspection instrument for wafer cassette distortion
JP2004101526A (en) * 2002-09-06 2004-04-02 General Electric Co <Ge> High resolution torque measurement on rotating shaft
JP2008046029A (en) * 2006-08-18 2008-02-28 Genshiryoku Anzen Syst Kenkyusho:Kk Optical vibration distortion measuring device
US7502128B2 (en) 2005-07-08 2009-03-10 Rolls Royce, Plc Monitoring arrangement for rotating components
JP2012159507A (en) * 2011-02-01 2012-08-23 Alstom Technology Ltd Device and method for measuring deformation of shaft

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131033U (en) * 1983-02-22 1984-09-03 株式会社小野測器 Photoelectric torque detector
JPS61127435U (en) * 1985-01-29 1986-08-09
JPH02154105A (en) * 1988-12-05 1990-06-13 Nec Corp Inspection instrument for wafer cassette distortion
JP2004101526A (en) * 2002-09-06 2004-04-02 General Electric Co <Ge> High resolution torque measurement on rotating shaft
US7502128B2 (en) 2005-07-08 2009-03-10 Rolls Royce, Plc Monitoring arrangement for rotating components
JP2008046029A (en) * 2006-08-18 2008-02-28 Genshiryoku Anzen Syst Kenkyusho:Kk Optical vibration distortion measuring device
JP2012159507A (en) * 2011-02-01 2012-08-23 Alstom Technology Ltd Device and method for measuring deformation of shaft

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