JPS5342094A - Defect length measuring device - Google Patents

Defect length measuring device

Info

Publication number
JPS5342094A
JPS5342094A JP11585876A JP11585876A JPS5342094A JP S5342094 A JPS5342094 A JP S5342094A JP 11585876 A JP11585876 A JP 11585876A JP 11585876 A JP11585876 A JP 11585876A JP S5342094 A JPS5342094 A JP S5342094A
Authority
JP
Japan
Prior art keywords
defect length
measuring device
length measuring
defect
correcting
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
JP11585876A
Other languages
Japanese (ja)
Other versions
JPS5824728B2 (en
Inventor
Fuminobu Takahashi
Kazumichi Suzuki
Yoshihiro Michiguchi
Takahiro Kanamori
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 JP51115858A priority Critical patent/JPS5824728B2/en
Publication of JPS5342094A publication Critical patent/JPS5342094A/en
Publication of JPS5824728B2 publication Critical patent/JPS5824728B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To provide the true defect length by using transformation table and correcting the apparent defect length of sample surface given by ultrasonic inspector.
COPYRIGHT: (C)1978,JPO&Japio
JP51115858A 1976-09-29 1976-09-29 Defect length measurement method and device Expired JPS5824728B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51115858A JPS5824728B2 (en) 1976-09-29 1976-09-29 Defect length measurement method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51115858A JPS5824728B2 (en) 1976-09-29 1976-09-29 Defect length measurement method and device

Publications (2)

Publication Number Publication Date
JPS5342094A true JPS5342094A (en) 1978-04-17
JPS5824728B2 JPS5824728B2 (en) 1983-05-23

Family

ID=14672876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51115858A Expired JPS5824728B2 (en) 1976-09-29 1976-09-29 Defect length measurement method and device

Country Status (1)

Country Link
JP (1) JPS5824728B2 (en)

Also Published As

Publication number Publication date
JPS5824728B2 (en) 1983-05-23

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