JPS64481A - Detection of damage of coated film - Google Patents

Detection of damage of coated film

Info

Publication number
JPS64481A
JPS64481A JP62104650A JP10465087A JPS64481A JP S64481 A JPS64481 A JP S64481A JP 62104650 A JP62104650 A JP 62104650A JP 10465087 A JP10465087 A JP 10465087A JP S64481 A JPS64481 A JP S64481A
Authority
JP
Japan
Prior art keywords
magnetic field
recorder
outputted
converter
detection signal
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
JP62104650A
Other languages
English (en)
Other versions
JP2526578B2 (ja
JPH01481A (ja
Inventor
Akio Nagamune
Kazuo Sano
Takao Yamamura
Yosuke Amano
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP62104650A priority Critical patent/JP2526578B2/ja
Publication of JPS64481A publication Critical patent/JPS64481A/ja
Publication of JPH01481A publication Critical patent/JPH01481A/ja
Application granted granted Critical
Publication of JP2526578B2 publication Critical patent/JP2526578B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
JP62104650A 1986-06-26 1987-04-30 塗膜損傷検知方法 Expired - Lifetime JP2526578B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62104650A JP2526578B2 (ja) 1986-06-26 1987-04-30 塗膜損傷検知方法

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP15045286 1986-06-26
JP61-150453 1986-06-26
JP61-150452 1986-06-26
JP61-160938 1986-07-10
JP61-252867 1986-10-24
JP62-23478 1987-02-05
JP62104650A JP2526578B2 (ja) 1986-06-26 1987-04-30 塗膜損傷検知方法

Publications (3)

Publication Number Publication Date
JPS64481A true JPS64481A (en) 1989-01-05
JPH01481A JPH01481A (ja) 1989-01-05
JP2526578B2 JP2526578B2 (ja) 1996-08-21

Family

ID=26445082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62104650A Expired - Lifetime JP2526578B2 (ja) 1986-06-26 1987-04-30 塗膜損傷検知方法

Country Status (1)

Country Link
JP (1) JP2526578B2 (ja)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04120456A (ja) * 1990-09-11 1992-04-21 Hitachi Ltd Ｓｑｕｉｄによる非破壊検査装置
JPH06109862A (ja) * 1992-09-30 1994-04-22 Tokyo Gas Co Ltd 埋設管に於ける対象個所の検知方法
JPH09218174A (ja) * 1996-02-09 1997-08-19 Takenaka Komuten Co Ltd 光触媒膜の検査方法
JPH10206390A (ja) * 1997-01-22 1998-08-07 Kawasaki Steel Corp 埋設鋼管被覆損傷探査方法
JPH1151907A (ja) * 1997-08-04 1999-02-26 Tokyo Gas Co Ltd 隠蔽配管路の損傷箇所探査工法
JPH11118940A (ja) * 1997-10-15 1999-04-30 Japan Radio Co Ltd 埋設物探査装置
JP2001194340A (ja) * 2000-01-11 2001-07-19 Osaka Gas Co Ltd 電気防食状態計測装置
JP2005134159A (ja) * 2003-10-28 2005-05-26 Nippon Steel Corp 埋設金属管のメタルタッチ部検出方法。
JP2011007521A (ja) * 2009-06-23 2011-01-13 Nippon Steel Pipeline Co Ltd メタルタッチ検出装置及びメタルタッチ検出方法
JP2011145176A (ja) * 2010-01-14 2011-07-28 Toyota Motor Corp 渦流計測用センサ、及び、渦流計測用センサによる検査方法
EP3236252A1 (en) * 2016-04-22 2017-10-25 Yokogawa Electric Corporation Thinning detection system and thinning detection method
EP3223010A4 (en) * 2014-11-21 2018-05-09 Konica Minolta, Inc. Magnetic flaw detection device and magnetic flaw detection method
JP2019015749A (ja) * 2013-11-19 2019-01-31 ヒュン チャン リー 移動式漏電探索装置
EP3477294A4 (en) * 2016-06-28 2020-02-12 Hitachi High-tech Fine Systems Corporation RAIL INSPECTION SYSTEM
CN111337566A (zh) * 2020-02-25 2020-06-26 清华大学 漏磁检测缺陷边沿识别的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005351626A (ja) * 2004-06-08 2005-12-22 Shikoku Res Inst Inc 非破壊検査方法及びその装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51117088A (en) * 1975-04-05 1976-10-14 Nippon Kokan Kk <Nkk> Conductor detection method
JPS5311387B2 (ja) * 1973-06-08 1978-04-21
JPS54147064A (en) * 1978-05-11 1979-11-16 Yasuyuki Nakashima Method of searching for buried electric wire
JPS56140276A (en) * 1980-04-02 1981-11-02 Nippon Telegr & Teleph Corp <Ntt> Measuring device of buried position of underground cable
JPS5756769A (en) * 1980-09-22 1982-04-05 Shimizu Kiko Kk Searcher for buried metallic pipe
JPS59162474A (ja) * 1983-02-16 1984-09-13 マ−ク・イアン・ホウエル 導体の電磁的探査装置
JPS6030895B2 (ja) * 1976-10-04 1985-07-19 大阪瓦斯株式会社 埋設導管の塗覆装異常部検知方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311387B2 (ja) * 1973-06-08 1978-04-21
JPS51117088A (en) * 1975-04-05 1976-10-14 Nippon Kokan Kk <Nkk> Conductor detection method
JPS6030895B2 (ja) * 1976-10-04 1985-07-19 大阪瓦斯株式会社 埋設導管の塗覆装異常部検知方法
JPS54147064A (en) * 1978-05-11 1979-11-16 Yasuyuki Nakashima Method of searching for buried electric wire
JPS56140276A (en) * 1980-04-02 1981-11-02 Nippon Telegr & Teleph Corp <Ntt> Measuring device of buried position of underground cable
JPS5756769A (en) * 1980-09-22 1982-04-05 Shimizu Kiko Kk Searcher for buried metallic pipe
JPS59162474A (ja) * 1983-02-16 1984-09-13 マ−ク・イアン・ホウエル 導体の電磁的探査装置

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04120456A (ja) * 1990-09-11 1992-04-21 Hitachi Ltd Ｓｑｕｉｄによる非破壊検査装置
JPH06109862A (ja) * 1992-09-30 1994-04-22 Tokyo Gas Co Ltd 埋設管に於ける対象個所の検知方法
JPH09218174A (ja) * 1996-02-09 1997-08-19 Takenaka Komuten Co Ltd 光触媒膜の検査方法
JPH10206390A (ja) * 1997-01-22 1998-08-07 Kawasaki Steel Corp 埋設鋼管被覆損傷探査方法
JPH1151907A (ja) * 1997-08-04 1999-02-26 Tokyo Gas Co Ltd 隠蔽配管路の損傷箇所探査工法
JPH11118940A (ja) * 1997-10-15 1999-04-30 Japan Radio Co Ltd 埋設物探査装置
JP2001194340A (ja) * 2000-01-11 2001-07-19 Osaka Gas Co Ltd 電気防食状態計測装置
JP2005134159A (ja) * 2003-10-28 2005-05-26 Nippon Steel Corp 埋設金属管のメタルタッチ部検出方法。
JP2011007521A (ja) * 2009-06-23 2011-01-13 Nippon Steel Pipeline Co Ltd メタルタッチ検出装置及びメタルタッチ検出方法
JP2011145176A (ja) * 2010-01-14 2011-07-28 Toyota Motor Corp 渦流計測用センサ、及び、渦流計測用センサによる検査方法
US10996285B2 (en) 2013-11-19 2021-05-04 Hyun Chang Lee Method of detecting earth leaking point without interrupting a power supply
USRE50683E1 (en) 2013-11-19 2025-12-02 Hyun Chang Lee Method of detecting earth leaking point without interrupting a power supply
JP2019015749A (ja) * 2013-11-19 2019-01-31 ヒュン チャン リー 移動式漏電探索装置
EP3223010A4 (en) * 2014-11-21 2018-05-09 Konica Minolta, Inc. Magnetic flaw detection device and magnetic flaw detection method
EP3236252A1 (en) * 2016-04-22 2017-10-25 Yokogawa Electric Corporation Thinning detection system and thinning detection method
US10458947B2 (en) 2016-04-22 2019-10-29 Yokogawa Electric Corporation Thinning detection system and thinning detection method
JP2017194404A (ja) * 2016-04-22 2017-10-26 横河電機株式会社 減肉検出システム、減肉検出方法
EP3477294A4 (en) * 2016-06-28 2020-02-12 Hitachi High-tech Fine Systems Corporation RAIL INSPECTION SYSTEM
CN111337566A (zh) * 2020-02-25 2020-06-26 清华大学 漏磁检测缺陷边沿识别的方法
CN111337566B (zh) * 2020-02-25 2021-10-22 清华大学 漏磁检测缺陷边沿识别的方法

Also Published As

Publication number Publication date
JP2526578B2 (ja) 1996-08-21

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