JPS55104754A - Instantaneous contact type ultrasonic flaw detecting method - Google Patents

Instantaneous contact type ultrasonic flaw detecting method

Info

Publication number
JPS55104754A
JPS55104754A JP1271579A JP1271579A JPS55104754A JP S55104754 A JPS55104754 A JP S55104754A JP 1271579 A JP1271579 A JP 1271579A JP 1271579 A JP1271579 A JP 1271579A JP S55104754 A JPS55104754 A JP S55104754A
Authority
JP
Japan
Prior art keywords
flaw detecting
signal
main transducer
transducer
disposed
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
JP1271579A
Other languages
Japanese (ja)
Inventor
Kiyoshi Matsumoto
Hiroshi Kajikawa
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP1271579A priority Critical patent/JPS55104754A/en
Publication of JPS55104754A publication Critical patent/JPS55104754A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To obtain a constant level of ultrasonic wave transmitting to a inspected object by providing an ultrasonic flaw detecting system having a flaw detecting main transducer disposed on the central axis of the flaw detecting and an auxiliary transducer disposed so as not to interfere with the signal from the main transducer.
CONSTITUTION: A flaw detecting main transducer 9 having a spherical lower face 8 for contact with an inspected object 7 is disposed on the axis of the flaw detecting head. Auxiliary transducers 10, 11 of the transmitting and receiving sides for the monitoring purpose have resonance frequencies which are different from that of the main transducer 9. These auxiliary transducers 10, 11 are so orientated that the monitoring signal does not interfere with the flaw detecting signal from the main transducer 9. Assuming here that a sine wave curve signal 12 is transmitted, the signal is reflected by the lower face 8 and is then received. The main transducer 9 is excited when a predetermined level of the monitoring signal is reached, so that the level of the ultrasonic wave transmitted through the inspection object 7 can be maintained constant.
COPYRIGHT: (C)1980,JPO&Japio
JP1271579A 1979-02-05 1979-02-05 Instantaneous contact type ultrasonic flaw detecting method Pending JPS55104754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1271579A JPS55104754A (en) 1979-02-05 1979-02-05 Instantaneous contact type ultrasonic flaw detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1271579A JPS55104754A (en) 1979-02-05 1979-02-05 Instantaneous contact type ultrasonic flaw detecting method

Publications (1)

Publication Number Publication Date
JPS55104754A true JPS55104754A (en) 1980-08-11

Family

ID=11813117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1271579A Pending JPS55104754A (en) 1979-02-05 1979-02-05 Instantaneous contact type ultrasonic flaw detecting method

Country Status (1)

Country Link
JP (1) JPS55104754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018084461A (en) * 2016-11-22 2018-05-31 株式会社東芝 Ultrasonic flaw detector and ultrasonic flaw detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018084461A (en) * 2016-11-22 2018-05-31 株式会社東芝 Ultrasonic flaw detector and ultrasonic flaw detection method

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