JPS57178113A - Oscillation monitoring device - Google Patents

Oscillation monitoring device

Info

Publication number
JPS57178113A
JPS57178113A JP6260181A JP6260181A JPS57178113A JP S57178113 A JPS57178113 A JP S57178113A JP 6260181 A JP6260181 A JP 6260181A JP 6260181 A JP6260181 A JP 6260181A JP S57178113 A JPS57178113 A JP S57178113A
Authority
JP
Japan
Prior art keywords
correlations
vibrometer
monitoring system
correlation
output signals
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
JP6260181A
Other languages
Japanese (ja)
Inventor
Yorihide Segawa
Fumio Fujisawa
Mototsugu Omori
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 JP6260181A priority Critical patent/JPS57178113A/en
Publication of JPS57178113A publication Critical patent/JPS57178113A/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 provide a monitoring system of high reliability by measuring the correlations among signals by using a changeover switch and a correlation analyzer with respect to the entire vibrometer output signals of the monitoring system and displaying abnormal output signals. CONSTITUTION:Turbine rotors 1, 2 and a generator rotor 3 are coupled, and vibrometers A4-F9 are connected to respective bearing parts. A correlation matrix former 13 and a display device 14 are connected to these. Each two sets of signals are drawn out from the output signals of the respective vibrometers by means of a changeover switch 10, and the correlations thereof are measured with a correlation analyzer 11. If there is any correlation, they are turned off and if there are no correlations, they are turned on by a microswitch 12. If it is assumed that only the vibrometer C is abnormal, the line C and the row C are on and the rest are off as shown in the figure, thereby displaying the abnormality of the vibrometer C. The monitoring system of high reliability is obtained.
JP6260181A 1981-04-27 1981-04-27 Oscillation monitoring device Pending JPS57178113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6260181A JPS57178113A (en) 1981-04-27 1981-04-27 Oscillation monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6260181A JPS57178113A (en) 1981-04-27 1981-04-27 Oscillation monitoring device

Publications (1)

Publication Number Publication Date
JPS57178113A true JPS57178113A (en) 1982-11-02

Family

ID=13205007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6260181A Pending JPS57178113A (en) 1981-04-27 1981-04-27 Oscillation monitoring device

Country Status (1)

Country Link
JP (1) JPS57178113A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62228920A (en) * 1986-03-31 1987-10-07 Ebara Res Co Ltd Abnormality discriminating method for sensor
JP2016003875A (en) * 2014-06-13 2016-01-12 日本電気株式会社 Motor abnormality detecting system, motor abnormality detecting method, and motor abnormality detecting program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62228920A (en) * 1986-03-31 1987-10-07 Ebara Res Co Ltd Abnormality discriminating method for sensor
JP2016003875A (en) * 2014-06-13 2016-01-12 日本電気株式会社 Motor abnormality detecting system, motor abnormality detecting method, and motor abnormality detecting program

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