JPS5782723A - Measuring device for oscillation - Google Patents

Measuring device for oscillation

Info

Publication number
JPS5782723A
JPS5782723A JP15998080A JP15998080A JPS5782723A JP S5782723 A JPS5782723 A JP S5782723A JP 15998080 A JP15998080 A JP 15998080A JP 15998080 A JP15998080 A JP 15998080A JP S5782723 A JPS5782723 A JP S5782723A
Authority
JP
Japan
Prior art keywords
oscillation
light
optical fiber
beam splitter
weight
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
JP15998080A
Other languages
Japanese (ja)
Inventor
Shuichi Tai
Kazuo Hisama
Toshio Aranishi
Koichi Hamanaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15998080A priority Critical patent/JPS5782723A/en
Publication of JPS5782723A publication Critical patent/JPS5782723A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

PURPOSE:To eliminate the need for recalibration in principle by widening and stabilizing a dynamic range mechanically by measuring oscillation by utilizing Doppler effect on laser light. CONSTITUTION:Laser light from a laser light source 19 is separated into light incident to an ultrasonic diffraction cell 20 through a beam splitter 22a, and light incident to an oscillation sensor part 16 through the beam splitter 22a, a lens 23b, an optical fiber 2a, a beam splitter 22b, and an optical fiber 2c. The light incident to the oscillation sensor part 16 is reflected by a mirror fitted to a weight in the oscillation sensor part 16. If an oscillation body 10 oscillates, the weight oscillates corresponding to the oscillation Doppler effect on incident light from the optical fiber 2c after being reflected by the said mirror is given in proportion to the oscillation speed of the weight to cause a frequency shift. This light and the primary diffracted light of the cell 20 are mixed by a beam splitter 22b to be guided to an optical receiver 24 through an optical fiber 2d, thus performing heterodyne detection.
JP15998080A 1980-11-12 1980-11-12 Measuring device for oscillation Pending JPS5782723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15998080A JPS5782723A (en) 1980-11-12 1980-11-12 Measuring device for oscillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15998080A JPS5782723A (en) 1980-11-12 1980-11-12 Measuring device for oscillation

Publications (1)

Publication Number Publication Date
JPS5782723A true JPS5782723A (en) 1982-05-24

Family

ID=15705366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15998080A Pending JPS5782723A (en) 1980-11-12 1980-11-12 Measuring device for oscillation

Country Status (1)

Country Link
JP (1) JPS5782723A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63253711A (en) * 1987-04-09 1988-10-20 Kyocera Corp Ladder type piezoelectric filter
JPH03131764A (en) * 1989-10-18 1991-06-05 Ono Sokki Co Ltd Laser doppler vibration indicator using beam branching optical system
JPH08248046A (en) * 1995-03-10 1996-09-27 Agency Of Ind Science & Technol Displacement or strain speed measuring apparatus
JP2017049185A (en) * 2015-09-03 2017-03-09 株式会社小野測器 Laser Doppler Vibrometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63253711A (en) * 1987-04-09 1988-10-20 Kyocera Corp Ladder type piezoelectric filter
JPH03131764A (en) * 1989-10-18 1991-06-05 Ono Sokki Co Ltd Laser doppler vibration indicator using beam branching optical system
JPH08248046A (en) * 1995-03-10 1996-09-27 Agency Of Ind Science & Technol Displacement or strain speed measuring apparatus
JP2017049185A (en) * 2015-09-03 2017-03-09 株式会社小野測器 Laser Doppler Vibrometer

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