JPS56138218A - Axial vibration monitoring method of rotary machine and its equipment - Google Patents

Axial vibration monitoring method of rotary machine and its equipment

Info

Publication number
JPS56138218A
JPS56138218A JP4304080A JP4304080A JPS56138218A JP S56138218 A JPS56138218 A JP S56138218A JP 4304080 A JP4304080 A JP 4304080A JP 4304080 A JP4304080 A JP 4304080A JP S56138218 A JPS56138218 A JP S56138218A
Authority
JP
Japan
Prior art keywords
signal
counter
rotary
frequency
high accuracy
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
JP4304080A
Other languages
Japanese (ja)
Inventor
Nobuo Kurihara
Yasuo Morooka
Mitsuyo Nishikawa
Kiyoshi Miura
Yoshitoshi Nagahashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4304080A priority Critical patent/JPS56138218A/en
Priority to DE19813112188 priority patent/DE3112188A1/en
Priority to US06/249,469 priority patent/US4426641A/en
Publication of JPS56138218A publication Critical patent/JPS56138218A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines

Landscapes

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

Abstract

PURPOSE:To analyze with respect to frequency a vibration signal with high accuracy and also at a high speed, by automatically controlling a sampling period of the vibration signal so that a rotary frequency component, its fractional harmonic component and a higher harmonic component can be analyzed with high accuracy. CONSTITUTION:The timing control circuit 22 generates a rotary pulse signal 106 through the rotary pulse gear 13 of the rotary machine end part, the electromagnetic pickup 23 and the waveform shaping circuit 24. On the other hand, the number of counts N of the counter 27 is set by the sample number setting device 32 and the sample number register 26, and also the number of counts M of the counter 29 is set by the number of analystic waves 31 and the analystic wave number setting register 30. A rotary pulse signal 106, and a frequency dividing signal 110 of an output of the counter 27 outputs a PLL transmission signal 109 through the PLL circuit 26, and generate a sampling timing setting signal 113 through the counter 29. According to such a constitution, the sampling synchronization can be controlled automatically, and a vibration signal of the rotary machine can be analyzed with respect to frequency with high accuracy and also at a high speed. Accordingly, it is possible to analyze and monitor an axial vibration.
JP4304080A 1980-03-31 1980-03-31 Axial vibration monitoring method of rotary machine and its equipment Pending JPS56138218A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4304080A JPS56138218A (en) 1980-03-31 1980-03-31 Axial vibration monitoring method of rotary machine and its equipment
DE19813112188 DE3112188A1 (en) 1980-03-31 1981-03-27 METHOD AND DEVICE FOR MONITORING THE VIBRATION OF A ROTATING SHAFT
US06/249,469 US4426641A (en) 1980-03-31 1981-03-31 Method and apparatus for monitoring the shaft vibration of a rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4304080A JPS56138218A (en) 1980-03-31 1980-03-31 Axial vibration monitoring method of rotary machine and its equipment

Publications (1)

Publication Number Publication Date
JPS56138218A true JPS56138218A (en) 1981-10-28

Family

ID=12652786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4304080A Pending JPS56138218A (en) 1980-03-31 1980-03-31 Axial vibration monitoring method of rotary machine and its equipment

Country Status (1)

Country Link
JP (1) JPS56138218A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023282028A1 (en) * 2021-07-07 2023-01-12 日本精工株式会社 State monitoring apparatus for mechanical apparatus, wind power generation apparatus, state monitoring method, and program
WO2024080159A1 (en) * 2022-10-14 2024-04-18 三菱重工マリンマシナリ株式会社 Vibration monitoring device, supercharger, and vibration monitoring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023282028A1 (en) * 2021-07-07 2023-01-12 日本精工株式会社 State monitoring apparatus for mechanical apparatus, wind power generation apparatus, state monitoring method, and program
WO2024080159A1 (en) * 2022-10-14 2024-04-18 三菱重工マリンマシナリ株式会社 Vibration monitoring device, supercharger, and vibration monitoring method

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