JPH0283446A - Ultrasonic flaw detection apparatus for nozzle - Google Patents

Ultrasonic flaw detection apparatus for nozzle

Info

Publication number
JPH0283446A
JPH0283446A JP23504088A JP23504088A JPH0283446A JP H0283446 A JPH0283446 A JP H0283446A JP 23504088 A JP23504088 A JP 23504088A JP 23504088 A JP23504088 A JP 23504088A JP H0283446 A JPH0283446 A JP H0283446A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
detection
sensors
flaw
operation
direction
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
JP23504088A
Other versions
JP2685531B2 (en )
Inventor
Akira Akasu
Kunitaka Asano
Yutaka Kimura
Tsukasa Sasaki
Original Assignee
Hitachi Eng Co Ltd
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

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/04Wave modes and trajectories
    • G01N2291/044Internal reflections (echoes), e.g. on walls or defects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/26Scanned objects
    • G01N2291/269Various geometry objects
    • G01N2291/2695Bottles, containers

Abstract

PURPOSE: To enhance the following accuracy to a nozzle saddle-shaped part, to miniaturize a flaw detection unit and to enhance flaw detection accuracy by providing follower sensors at two places on both sides of a probe and setting the average of the outputs of said sensors to distance detection quantity and performing control so as to set said detection quantity to a definite value to achieve following operation approximate to an ideal position.
CONSTITUTION: A probe holder 10 supporting a probe 4 in a freely shakable manner is fixed to the tip of a cylinder 11 performing extension and contraction operation in a Z-direction and the cylinder 11 is further mounted to a flaw detection unit 8 so as to perform revolving operation (α-direction). Follower sensors 13, 14 are respectively mounted to both side surfaces of the flaw detection unit 8 and, when a knob 15 is loosened, the sensors 13, 14 slide in a before- and-behind direction (Y-direction) and can be aligned by a scale plate 16. The follower sensors 13, 14 have detection parts 17 and the moving quantities thereof are converted to electric signals. The electric signals of the follower sensors 13, 14 are synthesized and always controlled so as to approximate set values and, therefore, the flaw detection unit 8 can perform following operation to the saddle-shaped part of a nozzle with good accuracy.
COPYRIGHT: (C)1990,JPO&Japio
JP23504088A 1988-09-21 1988-09-21 Ultrasonic flaw detector nozzle Expired - Lifetime JP2685531B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23504088A JP2685531B2 (en) 1988-09-21 1988-09-21 Ultrasonic flaw detector nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23504088A JP2685531B2 (en) 1988-09-21 1988-09-21 Ultrasonic flaw detector nozzle

Publications (2)

Publication Number Publication Date
JPH0283446A true true JPH0283446A (en) 1990-03-23
JP2685531B2 JP2685531B2 (en) 1997-12-03

Family

ID=16980192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23504088A Expired - Lifetime JP2685531B2 (en) 1988-09-21 1988-09-21 Ultrasonic flaw detector nozzle

Country Status (1)

Country Link
JP (1) JP2685531B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841064A (en) * 1995-05-26 1998-11-24 Matsushita Electric Works, Ltd. Peltier module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841064A (en) * 1995-05-26 1998-11-24 Matsushita Electric Works, Ltd. Peltier module

Also Published As

Publication number Publication date Type
JP2685531B2 (en) 1997-12-03 grant

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