JPS5495288A - Electromagnetic ultrasonic generation - Google Patents

Electromagnetic ultrasonic generation

Info

Publication number
JPS5495288A
JPS5495288A JP110178A JP110178A JPS5495288A JP S5495288 A JPS5495288 A JP S5495288A JP 110178 A JP110178 A JP 110178A JP 110178 A JP110178 A JP 110178A JP S5495288 A JPS5495288 A JP S5495288A
Authority
JP
Japan
Prior art keywords
conductive material
appears
waveform
electromagnetic ultrasonic
display device
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.)
Granted
Application number
JP110178A
Other languages
Japanese (ja)
Other versions
JPS6145774B2 (en
Inventor
Hisao Suzuki
Katsuhiro Kawashima
Shoji Murota
Yukio Nakamori
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
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP110178A priority Critical patent/JPS5495288A/en
Publication of JPS5495288A publication Critical patent/JPS5495288A/en
Publication of JPS6145774B2 publication Critical patent/JPS6145774B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To detect the internal defects of conductive material by providing a coil for generating ultrasonic wave for flowing high frequency pulse currents near the surface of the conductive material.
CONSTITUTION: When the electromagnetic ultrasonic waves having been generated arrive at the other surface or inside defect 23 of a conductive material 1, they are reflected and return in the derection of the arrow 24. When the reflected electromagnetic ultrasonic waves arrive near the surface of the conductive material 1, vibrating force 25 is produced and as a result of its mutual action with a magnetic field 10, an eddy current 26 is produced by Fleming's right-hand rule. The eddy current 26 is detected with a detecting coil 7 and the waveform thereof is displayed in a display device 28. In the display device 28, an initial pulse waveform 29 appears, then an internal defect 30 appears, thence the bottom waveform 31 from the bottom S appears.
COPYRIGHT: (C)1979,JPO&Japio
JP110178A 1978-01-11 1978-01-11 Electromagnetic ultrasonic generation Granted JPS5495288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP110178A JPS5495288A (en) 1978-01-11 1978-01-11 Electromagnetic ultrasonic generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP110178A JPS5495288A (en) 1978-01-11 1978-01-11 Electromagnetic ultrasonic generation

Publications (2)

Publication Number Publication Date
JPS5495288A true JPS5495288A (en) 1979-07-27
JPS6145774B2 JPS6145774B2 (en) 1986-10-09

Family

ID=11492085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP110178A Granted JPS5495288A (en) 1978-01-11 1978-01-11 Electromagnetic ultrasonic generation

Country Status (1)

Country Link
JP (1) JPS5495288A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57116822A (en) * 1981-01-13 1982-07-21 Nec Corp Ground surveying instrument
JPH01146213U (en) * 1988-03-30 1989-10-09

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024713A (en) * 1973-07-04 1975-03-17
JPS5162304A (en) * 1974-11-29 1976-05-29 Hitachi Ltd TEISOON JUDODENDOKI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024713A (en) * 1973-07-04 1975-03-17
JPS5162304A (en) * 1974-11-29 1976-05-29 Hitachi Ltd TEISOON JUDODENDOKI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57116822A (en) * 1981-01-13 1982-07-21 Nec Corp Ground surveying instrument
JPH01146213U (en) * 1988-03-30 1989-10-09

Also Published As

Publication number Publication date
JPS6145774B2 (en) 1986-10-09

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