JPS5543453A - Electromagnetic ultrasonic detector - Google Patents

Electromagnetic ultrasonic detector

Info

Publication number
JPS5543453A
JPS5543453A JP11708978A JP11708978A JPS5543453A JP S5543453 A JPS5543453 A JP S5543453A JP 11708978 A JP11708978 A JP 11708978A JP 11708978 A JP11708978 A JP 11708978A JP S5543453 A JPS5543453 A JP S5543453A
Authority
JP
Japan
Prior art keywords
rare earth
magnetic field
static magnetic
pole
case
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
JP11708978A
Other languages
Japanese (ja)
Inventor
Hisao Yamaguchi
Kazuo Fujisawa
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP11708978A priority Critical patent/JPS5543453A/en
Priority to DE2952885A priority patent/DE2952885C2/en
Priority to GB8001094A priority patent/GB2038481B/en
Priority to PCT/JP1979/000151 priority patent/WO1980000099A1/en
Priority to US06/191,338 priority patent/US4338822A/en
Priority to EP79900653A priority patent/EP0019002B1/en
Publication of JPS5543453A publication Critical patent/JPS5543453A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make the device compact by using rare earth magnet for the static magnetic field forming means.
CONSTITUTION: In a case 1 formed in water tight, a rare earth magnet comprising yttrium-iron- garnet and the like formed small cubic shape as a static magnetic field means 4 together with a center pole 2, upper and lower yokes 3, 4 and coil 6 is aligned so as to dispose N pole and S pole at upper and lower positions, contacted tightly, disposed in combination so as to form a ring shape and water feed cylinders 7a, 7b, 8 are attached. Thus, through the water passing cylinders 7a, 7b, 8, the cooling medium is guided into the case 1 to carry out the effective cooling by the simple structure. Owing to the large maximum magnetic energy of the rare earth elements as the static magnetic field means 4, the satisfactory detecting capacity is preserved and the power source required when the electromagnet is used is not necessary and a desired purpose can be achieved.
COPYRIGHT: (C)1980,JPO&Japio
JP11708978A 1978-06-20 1978-09-22 Electromagnetic ultrasonic detector Pending JPS5543453A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP11708978A JPS5543453A (en) 1978-09-22 1978-09-22 Electromagnetic ultrasonic detector
DE2952885A DE2952885C2 (en) 1978-06-20 1979-06-13 Device for non-contact ultrasonic flaw testing
GB8001094A GB2038481B (en) 1978-06-20 1979-06-13 Method of non-contact supersonic flaw detection and apparatus therefor
PCT/JP1979/000151 WO1980000099A1 (en) 1978-06-20 1979-06-13 Method of non-contact supersonic flaw detection and apparatus therefor
US06/191,338 US4338822A (en) 1978-06-20 1979-06-13 Method and apparatus for non-contact ultrasonic flaw detection
EP79900653A EP0019002B1 (en) 1978-06-20 1980-01-29 Method and apparatus for non-contact ultrasonic flaw detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11708978A JPS5543453A (en) 1978-09-22 1978-09-22 Electromagnetic ultrasonic detector

Publications (1)

Publication Number Publication Date
JPS5543453A true JPS5543453A (en) 1980-03-27

Family

ID=14703113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11708978A Pending JPS5543453A (en) 1978-06-20 1978-09-22 Electromagnetic ultrasonic detector

Country Status (1)

Country Link
JP (1) JPS5543453A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578999A (en) * 1982-02-10 1986-04-01 Mannesmann A.G. Instrument for testing materials
JPH0339144U (en) * 1989-08-28 1991-04-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578999A (en) * 1982-02-10 1986-04-01 Mannesmann A.G. Instrument for testing materials
JPH0339144U (en) * 1989-08-28 1991-04-16

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