JPS5786015A - Abnormality inspecting device - Google Patents

Abnormality inspecting device

Info

Publication number
JPS5786015A
JPS5786015A JP16139180A JP16139180A JPS5786015A JP S5786015 A JPS5786015 A JP S5786015A JP 16139180 A JP16139180 A JP 16139180A JP 16139180 A JP16139180 A JP 16139180A JP S5786015 A JPS5786015 A JP S5786015A
Authority
JP
Japan
Prior art keywords
arithmetic
reference value
value
output
multiplexer
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
JP16139180A
Other languages
Japanese (ja)
Inventor
Eiji Sawa
Hitoshi Kobayashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16139180A priority Critical patent/JPS5786015A/en
Publication of JPS5786015A publication Critical patent/JPS5786015A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid

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 discriminate continuous and intermittent abnormal output surely by calculating the average value of input data and number of pulses that has fixed relation with the reference value out of input data, and making inspection for abnormality of the instrument. CONSTITUTION:A sound oscillation detector 1 is connected with filters 3-7 and an amplifier 8 through an amplifier 2. Filters 3-7 are connected with effective value detecting circuits 14-19, and the output is connected to a multiplexer 20 separately. The output of the multiplexer 20 is connected to an arithmetic control section 22 through an A-D converter 21 and the result is indicated in a display section 23. The arithmetic control section 22 calculates the average value in a fixed period from every detected value of each frequency zone, and calculates the number of pulses of oscillation that has fixed relation with the second reference value out of the first arithmetic process that makes comparison with the first reference value and detected value. Then, one arithmetic process is selected and applied out of the three arithmetic processes, that is, the second arithmetic process that makes comparison with the third reference value, and the third arithmetic which is combination of the first and second arithmetic processes.
JP16139180A 1980-11-18 1980-11-18 Abnormality inspecting device Pending JPS5786015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16139180A JPS5786015A (en) 1980-11-18 1980-11-18 Abnormality inspecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16139180A JPS5786015A (en) 1980-11-18 1980-11-18 Abnormality inspecting device

Publications (1)

Publication Number Publication Date
JPS5786015A true JPS5786015A (en) 1982-05-28

Family

ID=15734194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16139180A Pending JPS5786015A (en) 1980-11-18 1980-11-18 Abnormality inspecting device

Country Status (1)

Country Link
JP (1) JPS5786015A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979817A (en) * 1982-09-30 1984-05-09 アライド・コ−ポレ−ション Transducer selector
JPS5997015A (en) * 1982-11-26 1984-06-04 Matsushita Electric Works Ltd Sound inspector for rotary body
JPS6069523A (en) * 1983-09-26 1985-04-20 Anritsu Corp Vibration measuring and recording device
JPS63192653A (en) * 1987-02-05 1988-08-10 財団法人鉄道総合技術研究所 Oscillation detecting method of railway rolling stock
JP2004361286A (en) * 2003-06-05 2004-12-24 Nittetsu Yahata Eng Kk Method of diagnosing deterioration of rotary machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979817A (en) * 1982-09-30 1984-05-09 アライド・コ−ポレ−ション Transducer selector
JPS5997015A (en) * 1982-11-26 1984-06-04 Matsushita Electric Works Ltd Sound inspector for rotary body
JPS6069523A (en) * 1983-09-26 1985-04-20 Anritsu Corp Vibration measuring and recording device
JPS63192653A (en) * 1987-02-05 1988-08-10 財団法人鉄道総合技術研究所 Oscillation detecting method of railway rolling stock
JPH0543259B2 (en) * 1987-02-05 1993-07-01 Railway Technical Res Inst
JP2004361286A (en) * 2003-06-05 2004-12-24 Nittetsu Yahata Eng Kk Method of diagnosing deterioration of rotary machine

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