SE9403028D0 - Ways of measuring vibration of a measuring object - Google Patents

Ways of measuring vibration of a measuring object

Info

Publication number
SE9403028D0
SE9403028D0 SE9403028A SE9403028A SE9403028D0 SE 9403028 D0 SE9403028 D0 SE 9403028D0 SE 9403028 A SE9403028 A SE 9403028A SE 9403028 A SE9403028 A SE 9403028A SE 9403028 D0 SE9403028 D0 SE 9403028D0
Authority
SE
Sweden
Prior art keywords
ultrasonic
test object
frequency
measuring
vibration
Prior art date
Application number
SE9403028A
Other languages
Swedish (sv)
Other versions
SE502506C2 (en
SE9403028L (en
Inventor
Hans Wilhelm Persson
Original Assignee
Hans Wilhelm Persson
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 Hans Wilhelm Persson filed Critical Hans Wilhelm Persson
Priority to SE9403028A priority Critical patent/SE9403028L/en
Publication of SE9403028D0 publication Critical patent/SE9403028D0/en
Priority to AU35366/95A priority patent/AU3536695A/en
Priority to PCT/SE1995/001018 priority patent/WO1996008700A1/en
Publication of SE502506C2 publication Critical patent/SE502506C2/en
Publication of SE9403028L publication Critical patent/SE9403028L/en

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)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

In a method for measuring the vibrations of a test object, an ultrasonic measuring signal having a frequency that is much higher than the vibration frequency of the test object (3) is transmitted from an ultrasonic transmitter (2) towards the vibrating test object. The ultrasonic signal reflected from the test object is detected by an ultrasonic receiver (4) and is frequency-demodulated, and the frequency-demodulated signal is frequency-analysed with a view to determining the vibration frequency and/or the maximum vibration velocity of the test object. Before the vibration measurement, the absence of signals interfering with the ultrasonic signal reflected from the test object is ensured by transmitting from the ultrasonic transmitter (2) an ultrasonic burst signal having the same frequency as the ultrasonic measuring signal. Any signals received by the ultrasonic receiver (4) outside a predetermined time interval for the reception of the ultrasonic burst signal reflected against the test object (3) are essentially eliminated by altering the direction and/or distance of the ultrasonic transmitter and/or the ultrasonic receiver in relation to the test object.
SE9403028A 1994-09-12 1994-09-12 Ways of measuring vibration of a measuring object SE9403028L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9403028A SE9403028L (en) 1994-09-12 1994-09-12 Ways of measuring vibration of a measuring object
AU35366/95A AU3536695A (en) 1994-09-12 1995-09-11 Method for measuring the vibrations of a test object
PCT/SE1995/001018 WO1996008700A1 (en) 1994-09-12 1995-09-11 Method for measuring the vibrations of a test object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9403028A SE9403028L (en) 1994-09-12 1994-09-12 Ways of measuring vibration of a measuring object

Publications (3)

Publication Number Publication Date
SE9403028D0 true SE9403028D0 (en) 1994-09-12
SE502506C2 SE502506C2 (en) 1995-10-30
SE9403028L SE9403028L (en) 1995-10-30

Family

ID=20395194

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9403028A SE9403028L (en) 1994-09-12 1994-09-12 Ways of measuring vibration of a measuring object

Country Status (3)

Country Link
AU (1) AU3536695A (en)
SE (1) SE9403028L (en)
WO (1) WO1996008700A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2463257A (en) * 2008-09-04 2010-03-10 Elio Poggiagliolmi Stabilized platform for an ultrasonic Doppler vibrometer for sensing motion of a surface
US10240972B2 (en) 2015-08-05 2019-03-26 Lovejoy Controls Corporation Doppler ultrasonic velocity probe
CN109143245A (en) * 2018-09-18 2019-01-04 国网江苏省电力有限公司盐城供电分公司 One kind contactless vibration signal measuring system based on ultrasound and its measurement method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733597A (en) * 1956-02-07 Apparatus for measuring vibrations
JPS51126171A (en) * 1974-12-23 1976-11-04 Yokogawa Hewlett Packard Ltd Detecting device of moving object
DE3404032A1 (en) * 1984-02-06 1985-08-08 Robert Bosch Gmbh, 7000 Stuttgart Ultrasonic sensor for movement detection

Also Published As

Publication number Publication date
WO1996008700A1 (en) 1996-03-21
AU3536695A (en) 1996-03-29
SE502506C2 (en) 1995-10-30
SE9403028L (en) 1995-10-30

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