JPS58123361U - Eddy current flaw detection equipment - Google Patents

Eddy current flaw detection equipment

Info

Publication number
JPS58123361U
JPS58123361U JP2003382U JP2003382U JPS58123361U JP S58123361 U JPS58123361 U JP S58123361U JP 2003382 U JP2003382 U JP 2003382U JP 2003382 U JP2003382 U JP 2003382U JP S58123361 U JPS58123361 U JP S58123361U
Authority
JP
Japan
Prior art keywords
eddy current
flaw detection
current flaw
detection equipment
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.)
Pending
Application number
JP2003382U
Other languages
Japanese (ja)
Inventor
河村　皓二
大田　光廣
大賀　只則
飯岡　武雄
Original Assignee
新日本製鐵株式会社
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 新日本製鐵株式会社 filed Critical 新日本製鐵株式会社
Priority to JP2003382U priority Critical patent/JPS58123361U/en
Publication of JPS58123361U publication Critical patent/JPS58123361U/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、疵位相と謎信号の大きさとをベクトル表示し
たベクトル図である。第２図は、本考案実施例に係わる
線材探傷方法の説明図である。　・１．２・・・・・・
疵、６・・・・・・線材、７・・・・・・励振コイル、
・８・・・・・・検出コイル、９・・・・・・ブリッジ
、１０・・・・・・増巾器、１１・・・・・・励振信号
、１２・・・・・・同期検波回路、１３・・・・・・フ
ィルター、１４・・・・・・比較器、１５・・・・・・
インターフェース、１６・・・・・・処理回路、１７・
・・・・・表示装置、１８・・・・・・発振器。FIG. 1 is a vector diagram showing the flaw phase and the magnitude of the mystery signal as vectors. FIG. 2 is an explanatory diagram of the wire rod flaw detection method according to the embodiment of the present invention.・1.2・・・・・・
Defect, 6... Wire, 7... Excitation coil,
・8...detection coil, 9...bridge, 10...amplifier, 11...excitation signal, 12...synchronous detection Circuit, 13...Filter, 14...Comparator, 15...
Interface, 16... Processing circuit, 17.
... Display device, 18 ... Oscillator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 渦流探傷において、疵検用信号の少くとも０〜１８０°
を等ピッチに細分割して同期検波する複数個の同期検波
回路と、更に該回路の出力信号を複数の検出ｌノベルに
選別し出力する比較器と、該比較器出力をＡＮＤ、ＯＲ
条件で最終的な疵判断を行う処理回路とを有することを
特徴とする渦流探傷装置。In eddy current flaw detection, at least 0 to 180° of the flaw detection signal
a plurality of synchronous detection circuits that finely divide the signal into equal pitches and perform synchronous detection;
An eddy current flaw detection device characterized by having a processing circuit that makes a final flaw judgment based on conditions.
JP2003382U 1982-02-12 1982-02-12 Eddy current flaw detection equipment Pending JPS58123361U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003382U JPS58123361U (en) 1982-02-12 1982-02-12 Eddy current flaw detection equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003382U JPS58123361U (en) 1982-02-12 1982-02-12 Eddy current flaw detection equipment

Publications (1)

Publication Number Publication Date
JPS58123361U true JPS58123361U (en) 1983-08-22

Family

ID=30032211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003382U Pending JPS58123361U (en) 1982-02-12 1982-02-12 Eddy current flaw detection equipment

Country Status (1)

Country Link
JP (1) JPS58123361U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0839010A (en) * 1994-07-27 1996-02-13 Kumashiro Tekkosho:Kk Different article sensing coil device for carrying selector, adjustment method and carrying selector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890584A (en) * 1972-03-03 1973-11-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890584A (en) * 1972-03-03 1973-11-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0839010A (en) * 1994-07-27 1996-02-13 Kumashiro Tekkosho:Kk Different article sensing coil device for carrying selector, adjustment method and carrying selector

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