JPS57111442A - Measuring apparatus of residual stress - Google Patents

Measuring apparatus of residual stress

Info

Publication number
JPS57111442A
JPS57111442A JP55185642A JP18564280A JPS57111442A JP S57111442 A JPS57111442 A JP S57111442A JP 55185642 A JP55185642 A JP 55185642A JP 18564280 A JP18564280 A JP 18564280A JP S57111442 A JPS57111442 A JP S57111442A
Authority
JP
Japan
Prior art keywords
substance
residual stress
alternating current
magnetic field
produced
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
JP55185642A
Other languages
Japanese (ja)
Inventor
Yoshihiro Takahara
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.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
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 Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP55185642A priority Critical patent/JPS57111442A/en
Publication of JPS57111442A publication Critical patent/JPS57111442A/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
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (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 measure the residual stress of a ferromagnetic substance, by providing a means giving an alternating current magnetic field to the magnetic substance to be measured and a sound-electricity conversion element contacting with said substance and then, detecting produced sound wave in th ferromagnetic substance. CONSTITUTION:A coil 2 and an alternating current power source 3 are provided in order to give an alternating current magnetic field to an axis direction of a ferromagnetic substance 4 carried out wire drawing by a die 1. A sound-electricity conversion element 6, e.g. a piezo-electric element connected with a waveguide rod 11 which contacts with the substance 4, is provided and a voltage measuring means introducing the output of this element 6 is provided. Said measuring means consisits of amplifiers 7, 9, a filter 8 and a voltmeter 10. When a switch of the source 3 is turned ON and the alternating current magnetic field is given to the substance 4, an AE sound wave in accordance with the residual stress produced at the wire drawing time in the coil 2 is produced and the residual stress of the ferromagnetic substance is measured easily by the volemeter 10.
JP55185642A 1980-12-29 1980-12-29 Measuring apparatus of residual stress Pending JPS57111442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55185642A JPS57111442A (en) 1980-12-29 1980-12-29 Measuring apparatus of residual stress

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55185642A JPS57111442A (en) 1980-12-29 1980-12-29 Measuring apparatus of residual stress

Publications (1)

Publication Number Publication Date
JPS57111442A true JPS57111442A (en) 1982-07-10

Family

ID=16174337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55185642A Pending JPS57111442A (en) 1980-12-29 1980-12-29 Measuring apparatus of residual stress

Country Status (1)

Country Link
JP (1) JPS57111442A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112257A (en) * 1982-12-20 1984-06-28 Hata Giken:Kk Method and device for nondestructive inspection of ferromagnetic material
US5164669A (en) * 1990-07-23 1992-11-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of characterizing residual stress in ferromagnetic materials using a pulse histogram of acoustic emission signals
US5280725A (en) * 1989-09-05 1994-01-25 Wolfgang Stengel Process and device for non-destructive determination of the prestressing condition of ferromagnetic securing elements
KR100424476B1 (en) * 2002-07-09 2004-03-25 삼성전자주식회사 Apparatus for measuring residual stress of optical fiber preform
KR100725860B1 (en) 2006-04-21 2007-06-11 홍덕스틸코드주식회사 Drawing stress measuring device and measuring method of wet drawn wire

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112257A (en) * 1982-12-20 1984-06-28 Hata Giken:Kk Method and device for nondestructive inspection of ferromagnetic material
US5280725A (en) * 1989-09-05 1994-01-25 Wolfgang Stengel Process and device for non-destructive determination of the prestressing condition of ferromagnetic securing elements
US5164669A (en) * 1990-07-23 1992-11-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of characterizing residual stress in ferromagnetic materials using a pulse histogram of acoustic emission signals
KR100424476B1 (en) * 2002-07-09 2004-03-25 삼성전자주식회사 Apparatus for measuring residual stress of optical fiber preform
KR100725860B1 (en) 2006-04-21 2007-06-11 홍덕스틸코드주식회사 Drawing stress measuring device and measuring method of wet drawn wire

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