JPS61240158A - Ultrasonic flaw detection method and apparatus therefor - Google Patents

Ultrasonic flaw detection method and apparatus therefor

Info

Publication number
JPS61240158A
JPS61240158A JP60081960A JP8196085A JPS61240158A JP S61240158 A JPS61240158 A JP S61240158A JP 60081960 A JP60081960 A JP 60081960A JP 8196085 A JP8196085 A JP 8196085A JP S61240158 A JPS61240158 A JP S61240158A
Authority
JP
Japan
Prior art keywords
inspected
probe
ultrasonic
flaw detection
normal line
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
JP60081960A
Other languages
Japanese (ja)
Inventor
Hideo Maruyama
Hajime Takada
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP60081960A priority Critical patent/JPS61240158A/en
Publication of JPS61240158A publication Critical patent/JPS61240158A/en
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To perform the flaw detection of an object to be inspected having a complicated surface configuration and difficult to mechanically follow, by performing scanning in such a state that the distance between the surface of the object to be inspected and an ultrasonic probe is kept constant and the probe is allowed to coincide with the normal line direction of the surface of the object to be inspected.
CONSTITUTION: A transmitter 22 repeatedly applies a pulse to an ultrasonic probe 12 while the probe 12 emits an ultrasonic wave to an object 10 to be inspected and receives the reflected wave therefrom. This receiving signal is sent to a distance detection circuit 26 through a receiver 24 and an up-and-down drive apparatus 28 is controlled by the detection output corresponding to the time from the transmission of the ultrasonic wave to the reception thereof to keep the distance between the probe 12 and the surface of the object 10 to be inspected. The reflected wave from the object 10 to be inspected is sent to an angle comparator 32 through receivers 20A, 20B and amplifiers 30A, 30B and the shift between the normal line direction of the object 10 to be inspected and the transmitting/receiving direction of the probe 12 is detected and an angle control apparatus 34 is driven by the detected output and, by this method, the normal line direction of the surface of the object 10 to be inspected is allowed to coincide with the ultrasonic wave transmitting/receiving direction of the probe 12 to perform automatic ultrasonic flaw detection.
COPYRIGHT: (C)1986,JPO&Japio
JP60081960A 1985-04-17 1985-04-17 Ultrasonic flaw detection method and apparatus therefor Granted JPS61240158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60081960A JPS61240158A (en) 1985-04-17 1985-04-17 Ultrasonic flaw detection method and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60081960A JPS61240158A (en) 1985-04-17 1985-04-17 Ultrasonic flaw detection method and apparatus therefor

Publications (1)

Publication Number Publication Date
JPS61240158A true JPS61240158A (en) 1986-10-25

Family

ID=13761068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60081960A Granted JPS61240158A (en) 1985-04-17 1985-04-17 Ultrasonic flaw detection method and apparatus therefor

Country Status (1)

Country Link
JP (1) JPS61240158A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01285851A (en) * 1988-05-13 1989-11-16 Hitachi Constr Mach Co Ltd Ultrasonic flaw detection apparatus
JPH02134560A (en) * 1988-11-16 1990-05-23 Hitachi Constr Mach Co Ltd Ultrasonic flaw detector
WO1991002971A1 (en) * 1989-08-21 1991-03-07 Hitachi Construction Machinery Co., Ltd. Ultrasonic flaw detector
JPH0368863A (en) * 1989-08-09 1991-03-25 Hitachi Constr Mach Co Ltd Ultrasonic flaw detector
CN105372328A (en) * 2015-11-02 2016-03-02 侬泰轲(上海)检测科技有限责任公司 Detection device and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969386A (en) * 1972-11-02 1974-07-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969386A (en) * 1972-11-02 1974-07-04

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01285851A (en) * 1988-05-13 1989-11-16 Hitachi Constr Mach Co Ltd Ultrasonic flaw detection apparatus
JPH02134560A (en) * 1988-11-16 1990-05-23 Hitachi Constr Mach Co Ltd Ultrasonic flaw detector
JPH0368863A (en) * 1989-08-09 1991-03-25 Hitachi Constr Mach Co Ltd Ultrasonic flaw detector
WO1991002971A1 (en) * 1989-08-21 1991-03-07 Hitachi Construction Machinery Co., Ltd. Ultrasonic flaw detector
US5335547A (en) * 1989-08-21 1994-08-09 Hitachi Construction Machinery Co., Ltd. Ultrasonic flaw detector
CN105372328A (en) * 2015-11-02 2016-03-02 侬泰轲(上海)检测科技有限责任公司 Detection device and method

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