JPS55147318A - Vibration measuring method for flaw of bearing - Google Patents

Vibration measuring method for flaw of bearing

Info

Publication number
JPS55147318A
JPS55147318A JP5400379A JP5400379A JPS55147318A JP S55147318 A JPS55147318 A JP S55147318A JP 5400379 A JP5400379 A JP 5400379A JP 5400379 A JP5400379 A JP 5400379A JP S55147318 A JPS55147318 A JP S55147318A
Authority
JP
Japan
Prior art keywords
circuit
vibration
flaw
computer
signal
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
JP5400379A
Other languages
Japanese (ja)
Inventor
Kazuo Sano
Shigeru Izawa
Takeo Yamada
Seigo Ando
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP5400379A priority Critical patent/JPS55147318A/en
Publication of JPS55147318A publication Critical patent/JPS55147318A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To detect the presence of a flaw caused in a bearing and the size of the flaw, by inputting a vibration output signal data from a vibration sensor into a computer to perform calculation and processing.
CONSTITUTION: The vibration of a bearing 1 is changed into an electric signal by a sensor 5. The electric signal is amplified by an amplifier circuit 6. The amplified signal is half-wave-rectified by a rectifier circuit 7 and then integrated by an integration circuit 12. A rotating position detection signal is applied from another sensor 14 to a differentiation circuit 18 through an amplifier 16 and a wave form shaping circuit 17 so that the detection signal is differentiated. A vibration output signal due to a flaw is supplied from the integration circuit 12 to a computer 13 synchronously with the application of a pluse signal from the differentiation circuit 18 to the computer. Numerous vibration output signal data are thus inputted the computer 13, which calculates the average and dispersion of the data. The result of the calculation and the relation between the amplitude and frequency of vibration are indicated on a cathode-ray tube display unit 20.
COPYRIGHT: (C)1980,JPO&Japio
JP5400379A 1979-05-04 1979-05-04 Vibration measuring method for flaw of bearing Pending JPS55147318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5400379A JPS55147318A (en) 1979-05-04 1979-05-04 Vibration measuring method for flaw of bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5400379A JPS55147318A (en) 1979-05-04 1979-05-04 Vibration measuring method for flaw of bearing

Publications (1)

Publication Number Publication Date
JPS55147318A true JPS55147318A (en) 1980-11-17

Family

ID=12958406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5400379A Pending JPS55147318A (en) 1979-05-04 1979-05-04 Vibration measuring method for flaw of bearing

Country Status (1)

Country Link
JP (1) JPS55147318A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776419A (en) * 1980-10-31 1982-05-13 Hitachi Ltd Oscillation monitoring device
KR100328636B1 (en) * 1997-11-26 2002-05-10 이구택 On-line vibration gauge of roll bearing in rolling mill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776419A (en) * 1980-10-31 1982-05-13 Hitachi Ltd Oscillation monitoring device
JPS6312244B2 (en) * 1980-10-31 1988-03-18 Hitachi Ltd
KR100328636B1 (en) * 1997-11-26 2002-05-10 이구택 On-line vibration gauge of roll bearing in rolling mill

Similar Documents

Publication Publication Date Title
CA2304616A1 (en) Method of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameter
NO863347L (en) VOLUME MEASUREMENT AND DEVICE.
JPS5653422A (en) Diagnosis device for bearing abnormality
JPS5697817A (en) Cracking shape detecting method
ATE268478T1 (en) METHOD AND DEVICE FOR TRACKING AN OBJECT
JPS55147318A (en) Vibration measuring method for flaw of bearing
GB664077A (en) Improvements in or relating to apparatus for indicating resonance of mechanical vibrations
JPS55113949A (en) Flaw detector for cast iron pipe
JPS5366756A (en) Measuring method and apparatus of three-dimentional curved surface
JPS5233585A (en) Device for controlling contact pressure of probe for ultrasonic flaw de tectors
JPS57118154A (en) Measuring method for deterioration of bearing lubricant
JPS57168136A (en) Vibration testing method
JPS5661645A (en) Thin-steel plate flaw detector using magnetism
JPS53106087A (en) Method and apparatus of eddy current ultrasonic flaw detection
JPS5672317A (en) Detector for knocking oscillation
Guz et al. One Algorithm for Calculating the Coordinates of an Acoustic Emission Source
JPS5520425A (en) Load measuring method and its unit in impulsive test of material
JPS56148005A (en) Inflation pressure detector
JPS6491040A (en) Measuring apparatus of optical density for checking image
JPS57200859A (en) Ultrasonic fault
JPS5713308A (en) Measuring method of 3-dimensional curved surface
GB1131075A (en) Ultrasonic inspection apparatus and method
JPS57146158A (en) Eddy current flaw detecting device
JPS5393084A (en) Ultrasonic inspection probe by surface wave method
JPS55144557A (en) Surface potentiometer