JPS5687855A - Ultrasonic flaw detecting device - Google Patents

Ultrasonic flaw detecting device

Info

Publication number
JPS5687855A
JPS5687855A JP16413779A JP16413779A JPS5687855A JP S5687855 A JPS5687855 A JP S5687855A JP 16413779 A JP16413779 A JP 16413779A JP 16413779 A JP16413779 A JP 16413779A JP S5687855 A JPS5687855 A JP S5687855A
Authority
JP
Japan
Prior art keywords
oscillators
flaw
ultrasonic
delay time
multiprobe
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
JP16413779A
Other languages
Japanese (ja)
Other versions
JPS5837506B2 (en
Inventor
Sakae Sugiyama
Kazunori Koga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP54164137A priority Critical patent/JPS5837506B2/en
Publication of JPS5687855A publication Critical patent/JPS5687855A/en
Publication of JPS5837506B2 publication Critical patent/JPS5837506B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make it possible to concentrate the ultrasonic beams to a prescribed position and set it to position of a flaw accurately, by detecting gas between a multiprobe and surface of a work to be detected during scanning of the probe, and controlling delay time of transmitting and receiving ultrasonic waves.
CONSTITUTION: Ultrasonic waves emitted from oscillators 11 through 17 and ultrasonic echoes from a flaw on a work being detected are received by the oscillators 11 through 17 and are put into a surface condition detecting circuit 9 and an adder 8 after being passed through preamplifiers 61W67 and delay elements 71W77. The surface condition detecting circuit 9 detects gaps immediately under respective oscillators of the multiprobe and sends these informations to a delay time control circuit 10 and a flaw position setting circuit 31. The delay time control circuit 10 controls the time of transmitting pulses to the oscillators 11W17 and also the time of receiving ultrasonic echoes from the oscillators 11W17 and concentrates the ultrasonic beams to a prescribed position.
COPYRIGHT: (C)1981,JPO&Japio
JP54164137A 1979-12-19 1979-12-19 Ultrasonic flaw detection equipment Expired JPS5837506B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54164137A JPS5837506B2 (en) 1979-12-19 1979-12-19 Ultrasonic flaw detection equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54164137A JPS5837506B2 (en) 1979-12-19 1979-12-19 Ultrasonic flaw detection equipment

Publications (2)

Publication Number Publication Date
JPS5687855A true JPS5687855A (en) 1981-07-16
JPS5837506B2 JPS5837506B2 (en) 1983-08-16

Family

ID=15787443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54164137A Expired JPS5837506B2 (en) 1979-12-19 1979-12-19 Ultrasonic flaw detection equipment

Country Status (1)

Country Link
JP (1) JPS5837506B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156661A (en) * 1987-12-15 1989-06-20 Hitachi Ltd Joint part survey instrument
JP2013040924A (en) * 2011-07-15 2013-02-28 Toshiba Corp Ultrasonic flaw detector and method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102586919B1 (en) * 2018-10-08 2023-10-10 현대자동차주식회사 Control Method for Regeneration of DPF for Engines with Variable Compression Ratio

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156661A (en) * 1987-12-15 1989-06-20 Hitachi Ltd Joint part survey instrument
JP2013040924A (en) * 2011-07-15 2013-02-28 Toshiba Corp Ultrasonic flaw detector and method thereof

Also Published As

Publication number Publication date
JPS5837506B2 (en) 1983-08-16

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