JPS5520470A - Signal processing method in surface defect detection of high-temperature tested material - Google Patents

Signal processing method in surface defect detection of high-temperature tested material

Info

Publication number: JPS5520470A
Authority: JP; Japan
Prior art keywords: signal; signals; sent; difference; peak
Prior art date: 1978-07-29
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

JP9378378A

Other languages

English (en)

Other versions

JPS5916661B2 (ja

Inventor

Yasuhide Nakai

Yoshiro Nishimoto

Nobuo Kimura

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.)

Kobe Steel Ltd

Original Assignee

Kobe Steel 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.)

1978-07-29

Filing date

1978-07-29

Publication date

1980-02-13

1978-07-29 Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd

1978-07-29 Priority to JP9378378A priority Critical patent/JPS5916661B2/ja

1980-02-13 Publication of JPS5520470A publication Critical patent/JPS5520470A/ja

1984-04-17 Publication of JPS5916661B2 publication Critical patent/JPS5916661B2/ja

Status Expired legal-status Critical Current

Links

230000007547 defect Effects 0.000 title abstract 3
238000001514 detection method Methods 0.000 title 1
238000003672 processing method Methods 0.000 title 1

Landscapes

Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Investigating Or Analyzing Materials Using Thermal Means (AREA)

JP9378378A 1978-07-29 1978-07-29 高温被検材の表面欠陥検出における信号処理方法 Expired JPS5916661B2 (ja)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP9378378A JPS5916661B2 (ja)	1978-07-29	1978-07-29	高温被検材の表面欠陥検出における信号処理方法

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP9378378A JPS5916661B2 (ja)	1978-07-29	1978-07-29	高温被検材の表面欠陥検出における信号処理方法

Publications (2)

Publication Number	Publication Date
JPS5520470A true JPS5520470A (en)	1980-02-13
JPS5916661B2 JPS5916661B2 (ja)	1984-04-17

Family

ID=14092001

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP9378378A Expired JPS5916661B2 (ja)	1978-07-29	1978-07-29	高温被検材の表面欠陥検出における信号処理方法

Country Status (1)

Country	Link
JP (1)	JPS5916661B2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS574540A (en) *	1980-06-12	1982-01-11	Unitika Ltd	Method and apparatus for detecting defect of long flat object
JPS59163861A (ja) *	1983-03-09	1984-09-14	Hitachi Electronics Eng Co Ltd	固体撮像素子の白傷、黒傷の検出装置
JPS6089734A (ja) *	1983-10-24	1985-05-20	Nok Corp	表面欠陥検査方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS56136929U (ja) *	1980-03-18	1981-10-16

1978
- 1978-07-29 JP JP9378378A patent/JPS5916661B2/ja not_active Expired

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS574540A (en) *	1980-06-12	1982-01-11	Unitika Ltd	Method and apparatus for detecting defect of long flat object
JPS59163861A (ja) *	1983-03-09	1984-09-14	Hitachi Electronics Eng Co Ltd	固体撮像素子の白傷、黒傷の検出装置
JPS6089734A (ja) *	1983-10-24	1985-05-20	Nok Corp	表面欠陥検査方法

Also Published As

Publication number	Publication date
JPS5916661B2 (ja)	1984-04-17

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