JPS5759123A - Vibration mode detecting method for spring or the like - Google Patents

Vibration mode detecting method for spring or the like

Info

Publication number
JPS5759123A
JPS5759123A JP13466580A JP13466580A JPS5759123A JP S5759123 A JPS5759123 A JP S5759123A JP 13466580 A JP13466580 A JP 13466580A JP 13466580 A JP13466580 A JP 13466580A JP S5759123 A JPS5759123 A JP S5759123A
Authority
JP
Japan
Prior art keywords
spring
vibration mode
vibration
light
contacting
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
JP13466580A
Other languages
Japanese (ja)
Inventor
Isao Hasegawa
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.)
Nuclear Fuel Industries Ltd
Original Assignee
Nuclear Fuel Industries 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 Nuclear Fuel Industries Ltd filed Critical Nuclear Fuel Industries Ltd
Priority to JP13466580A priority Critical patent/JPS5759123A/en
Publication of JPS5759123A publication Critical patent/JPS5759123A/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)

Abstract

PURPOSE:To detect the vibration mode of a spring, etc., accurately without contacting by measuring vibrations by photodetecting the reflected light of thin beam light. CONSTITUTION:The measurement point of a spring 2, etc., is irradiated with thin laser beam light from a laser oscillator 1. Then, its reflected laser light from the spring 2 is photodetected through a collimator lens 8 by a photoconductor position detector 3, whose output is displayed on a synchroscope and also recorded on a data recorder 5. On the basis of orthogonal two-axial coordinate position data of the measurement point read on the recorder 5, vibration mode, such as amplitude, a vibration frequency and vibration waveform is determined. Therefore, the vibration mode of the spring, etc., is detected accurately without contacting.
JP13466580A 1980-09-27 1980-09-27 Vibration mode detecting method for spring or the like Pending JPS5759123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13466580A JPS5759123A (en) 1980-09-27 1980-09-27 Vibration mode detecting method for spring or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13466580A JPS5759123A (en) 1980-09-27 1980-09-27 Vibration mode detecting method for spring or the like

Publications (1)

Publication Number Publication Date
JPS5759123A true JPS5759123A (en) 1982-04-09

Family

ID=15133687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13466580A Pending JPS5759123A (en) 1980-09-27 1980-09-27 Vibration mode detecting method for spring or the like

Country Status (1)

Country Link
JP (1) JPS5759123A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2494356C2 (en) * 2011-03-29 2013-09-27 Государственный научно-исследовательский испытательный институт проблем технической защиты информации Федеральной службы по техническому и экспортному контролю Remote vibration sensor
CN109764952A (en) * 2019-01-24 2019-05-17 甘特科技(北京)有限公司 A kind of detection of dither axis, rotating speed measurement method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2494356C2 (en) * 2011-03-29 2013-09-27 Государственный научно-исследовательский испытательный институт проблем технической защиты информации Федеральной службы по техническому и экспортному контролю Remote vibration sensor
CN109764952A (en) * 2019-01-24 2019-05-17 甘特科技(北京)有限公司 A kind of detection of dither axis, rotating speed measurement method and device

Similar Documents

Publication Publication Date Title
US4813782A (en) Method and apparatus for measuring the floating amount of the magnetic head
ES455360A1 (en) Apparatus for reading a record carrier with an optically readable information structure
ATE43451T1 (en) DEVICE FOR RECORDING AND/OR REPRODUCTION OF INFORMATION IN/FROM A TRACK OF A REFLECTIVE INFORMATION CARRIER, WHICH INCLUDES A FOCUSING CONTROL SYSTEM WITH REDUCED SENSITIVITY TO RADIATION SPOT DISPLACEMENT.
US5026162A (en) Optical interference position measurement system
KR850003027A (en) Apparatus for reproducing optically readable record carrier information
JPS5759123A (en) Vibration mode detecting method for spring or the like
MY106732A (en) Optical recording and/or reproducing apparatus.
JPH02501958A (en) Focus detection system for use in optical measurement systems
JPH0530205B2 (en)
Lal et al. Multiple-beam LDV system for buried landmine detection
SU1464046A1 (en) Device for measuring amplitude of angular oscillations
JPS5850404A (en) Device for measuring minute displacement
JPS5644821A (en) Measuring method of optical lens focal distance and measuring system therefor
SU721677A1 (en) Photoelectric device for measuring rectilinearity of articles
SU534646A1 (en) The method of contactless control profile curvilinear surfaces of objects
JPS57192833A (en) Method of detecting vibration of object to be measured using coherent light
MY122163A (en) Optical seeking apparatus with track crossing signal generation using a corrected tracking error signal having a constant amplitude.
SU624157A1 (en) Method of determining velocity of propagation of surface acoustic waves
RU2020520C1 (en) Method of measuring speed of motion of ship relatively the water surface and device for realization
SU590821A1 (en) Device for measuring moving magnetic tape parameters
SU916976A1 (en) Device for measuring object angular position
JPS56114705A (en) Gap measuring device
SU1539527A1 (en) Method and apparatus for measuring distance to reflecting surface
RU1825976C (en) Method of contactless recording of acoustic oscillations
SU789029A1 (en) Method for determining size of laser beam