JPS5719624A - Device for measuring vibration - Google Patents

Device for measuring vibration

Info

Publication number
JPS5719624A
JPS5719624A JP9430580A JP9430580A JPS5719624A JP S5719624 A JPS5719624 A JP S5719624A JP 9430580 A JP9430580 A JP 9430580A JP 9430580 A JP9430580 A JP 9430580A JP S5719624 A JPS5719624 A JP S5719624A
Authority
JP
Japan
Prior art keywords
vibration
light
optical fiber
amount
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
JP9430580A
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 JP9430580A priority Critical patent/JPS5719624A/en
Publication of JPS5719624A publication Critical patent/JPS5719624A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • G01V1/181—Geophones

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To enhance the reliability in measurement by sensing the reflected light from the reflecting surface of a weight supported by an object to be measured via elastic bodies. CONSTITUTION:Light is guided to a vibrating sensor fixed to the object to be measured via an optical fiber and inputted to the self reflecting surfaces 4a and 4b of the weight 4 supported by springs 3a and 3b, via a half mirror 8 and a mirror 9. The reflected light is inputted to optical fibers 12a and 12b via rod lenses 10a and 11a. When the weight 4 receives the vibration in the X direction to which, e.g., the spring 3b is expanded and contracted, the amount of light incident to the optical fiber 12a varies in response to the vibration period. Likewise, the amount of the incident light to the optical fiber 12b changes with the vibration of the expanding and contracting (Y) direction of the spring 3a. With respect to the vibration in the arbitrary direction, the amount of the incident light to the optical fibers 12a and 12b varies with the vibration components in the X and Y directions. Since the external electromagnetic effects are not affected, the reliability in measurement can be enhanced.
JP9430580A 1980-07-09 1980-07-09 Device for measuring vibration Pending JPS5719624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9430580A JPS5719624A (en) 1980-07-09 1980-07-09 Device for measuring vibration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9430580A JPS5719624A (en) 1980-07-09 1980-07-09 Device for measuring vibration

Publications (1)

Publication Number Publication Date
JPS5719624A true JPS5719624A (en) 1982-02-01

Family

ID=14106555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9430580A Pending JPS5719624A (en) 1980-07-09 1980-07-09 Device for measuring vibration

Country Status (1)

Country Link
JP (1) JPS5719624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010518A1 (en) * 1995-09-11 1997-03-20 Ultra Electronics Limited Difar sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010518A1 (en) * 1995-09-11 1997-03-20 Ultra Electronics Limited Difar sensor

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