JPS55132950A - Defect detector - Google Patents
Defect detectorInfo
- Publication number
- JPS55132950A JPS55132950A JP4130079A JP4130079A JPS55132950A JP S55132950 A JPS55132950 A JP S55132950A JP 4130079 A JP4130079 A JP 4130079A JP 4130079 A JP4130079 A JP 4130079A JP S55132950 A JPS55132950 A JP S55132950A
- Authority
- JP
- Japan
- Prior art keywords
- detection signals
- defects
- ultrasonic waves
- specimen
- different frequencies
- 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
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To enable the defects in the specimen to be readily detected with high sensitivity by transmitting the ultrasonic waves of different frequencies into the specimen, synchronizing the echo waves thereof and adding the same.
CONSTITUTION: The ultrasonic waves of different frequencies are subsequently transmitted from an ultrasonic wave transducer 11 and the respective echo informations by these ultrasonic waves are synchronized and added 18. The detection signals by the weld lines 8 of a metal material 3 are evened and their maximum crest values are made small. The respective detection signals by defects 4a, 4b and boundary face 3a are multiplied. Hence, the defect detection signals may be made larger than the detection signals by the weld line 8 and the high-sensitivity detection of defects may be readily accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54041300A JPS5837505B2 (en) | 1979-04-05 | 1979-04-05 | Defect detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54041300A JPS5837505B2 (en) | 1979-04-05 | 1979-04-05 | Defect detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55132950A true JPS55132950A (en) | 1980-10-16 |
JPS5837505B2 JPS5837505B2 (en) | 1983-08-16 |
Family
ID=12604610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54041300A Expired JPS5837505B2 (en) | 1979-04-05 | 1979-04-05 | Defect detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5837505B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296266A (en) * | 1985-06-25 | 1986-12-27 | Kawasaki Steel Corp | Ultrasonic flaw detection apparatus |
JPH0216468B2 (en) * | 1981-11-25 | 1990-04-17 | Rockwell International Corp | |
JP2012122807A (en) * | 2010-12-07 | 2012-06-28 | Kawasaki Heavy Ind Ltd | Ultrasonic test equipment of brazing joint section, and method |
JP2015148602A (en) * | 2014-01-07 | 2015-08-20 | 株式会社神戸製鋼所 | ultrasonic flaw detection method |
JP2017138239A (en) * | 2016-02-04 | 2017-08-10 | 学校法人桐蔭学園 | Non-contact acoustic searching system |
JP2018205055A (en) * | 2017-06-01 | 2018-12-27 | 株式会社神戸製鋼所 | Defect evaluation method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60241177A (en) * | 1984-05-16 | 1985-11-30 | Mitsubishi Electric Corp | Form recognizer |
-
1979
- 1979-04-05 JP JP54041300A patent/JPS5837505B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0216468B2 (en) * | 1981-11-25 | 1990-04-17 | Rockwell International Corp | |
JPS61296266A (en) * | 1985-06-25 | 1986-12-27 | Kawasaki Steel Corp | Ultrasonic flaw detection apparatus |
JP2012122807A (en) * | 2010-12-07 | 2012-06-28 | Kawasaki Heavy Ind Ltd | Ultrasonic test equipment of brazing joint section, and method |
JP2015148602A (en) * | 2014-01-07 | 2015-08-20 | 株式会社神戸製鋼所 | ultrasonic flaw detection method |
JP2017138239A (en) * | 2016-02-04 | 2017-08-10 | 学校法人桐蔭学園 | Non-contact acoustic searching system |
JP2018205055A (en) * | 2017-06-01 | 2018-12-27 | 株式会社神戸製鋼所 | Defect evaluation method |
Also Published As
Publication number | Publication date |
---|---|
JPS5837505B2 (en) | 1983-08-16 |
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