JPS5779445A - Blow diagnosis device - Google Patents

Blow diagnosis device

Info

Publication number
JPS5779445A
JPS5779445A JP55154974A JP15497480A JPS5779445A JP S5779445 A JPS5779445 A JP S5779445A JP 55154974 A JP55154974 A JP 55154974A JP 15497480 A JP15497480 A JP 15497480A JP S5779445 A JPS5779445 A JP S5779445A
Authority
JP
Japan
Prior art keywords
blow
output
integrator
hammer
coil
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
JP55154974A
Other languages
Japanese (ja)
Inventor
Mataichiro Kiso
Akimi Futagawa
Tokio Fukunaga
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55154974A priority Critical patent/JPS5779445A/en
Publication of JPS5779445A publication Critical patent/JPS5779445A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0032—Generation of the force using mechanical means
    • G01N2203/0039—Hammer or pendulum

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To faclitate an easy diagnosis of insulation, by fixing a pressure-sensitive element to the blow surface of a hammer that gives a blow to a coil and deciding and displaying the quality of an insulator by the output signal of the above-mentioned pressure-sensitive element. CONSTITUTION:A blow is given to a coil 1 by a hammer 5, and the output of a pressure-sensitive element 6 which is fixed to the hammer 5 and converts the intensity of blow into the electric signal is amplified by an amplifier 7 and applied to an integrator 8. The output of the integrator 8 is compared with the reference voltage by a decider 9. Thus an insulator is decided defective and nondefective in case the output of the integrator 8 is higher and lower than the reference voltage, respectively. Then lamps 9a and 9b are turned on in the case of the nondefective and defective quality, respectively. In such way, the coil insulation can be accurately diagnosed although the level of the ambient noise is high without requiring the perception of an inspector.
JP55154974A 1980-11-04 1980-11-04 Blow diagnosis device Pending JPS5779445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55154974A JPS5779445A (en) 1980-11-04 1980-11-04 Blow diagnosis device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55154974A JPS5779445A (en) 1980-11-04 1980-11-04 Blow diagnosis device

Publications (1)

Publication Number Publication Date
JPS5779445A true JPS5779445A (en) 1982-05-18

Family

ID=15595943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55154974A Pending JPS5779445A (en) 1980-11-04 1980-11-04 Blow diagnosis device

Country Status (1)

Country Link
JP (1) JPS5779445A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058551A (en) * 1983-09-12 1985-04-04 Toshiba Corp Looseness diagnostic method and apparatus therefor
JPS60211360A (en) * 1984-04-06 1985-10-23 Kajima Corp Peeling detector for wall surface tile or the like
JP2015227808A (en) * 2014-05-30 2015-12-17 古河機械金属株式会社 Hammering determination device, hammering determination method, and program

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4998691A (en) * 1973-01-24 1974-09-18
JPS518990A (en) * 1974-07-12 1976-01-24 Nippon Seiko Kk Kaitentaino sonshokenshutsusochi

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4998691A (en) * 1973-01-24 1974-09-18
JPS518990A (en) * 1974-07-12 1976-01-24 Nippon Seiko Kk Kaitentaino sonshokenshutsusochi

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058551A (en) * 1983-09-12 1985-04-04 Toshiba Corp Looseness diagnostic method and apparatus therefor
JPH0578787B2 (en) * 1983-09-12 1993-10-29 Tokyo Shibaura Electric Co
JPS60211360A (en) * 1984-04-06 1985-10-23 Kajima Corp Peeling detector for wall surface tile or the like
JPH0254903B2 (en) * 1984-04-06 1990-11-22 Kajima Corp
JP2015227808A (en) * 2014-05-30 2015-12-17 古河機械金属株式会社 Hammering determination device, hammering determination method, and program

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