JPS63129862U - - Google Patents
Info
- Publication number
- JPS63129862U JPS63129862U JP2219887U JP2219887U JPS63129862U JP S63129862 U JPS63129862 U JP S63129862U JP 2219887 U JP2219887 U JP 2219887U JP 2219887 U JP2219887 U JP 2219887U JP S63129862 U JPS63129862 U JP S63129862U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- test article
- flaw detector
- magnetic flux
- magnetic sensor
- 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
- 230000005284 excitation Effects 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は本考案による漏洩磁束検出型磁気探傷
器の一実施例を示す回路図、第２図はその機械的
構造を示す外観図、第３図は本考案の基本的考え
方を説明する図、第４図は従来の漏洩磁束検出型
探傷器の一例を示す図、第５図は人工クラツクを
入れたテスト用鋼片の外観図、第６図はテスト用
鋼片を測定したときの検出電圧のレコーダ記録図
、第７図は傷探さと検出電圧との関係を表わした
特性図、第８図は本考案磁気探傷器による実測例
を示す図である。
１……励磁コイル、２……コア、４……磁気セ
ンサ、５……増幅器、９……検出器、１０……安
定化電源、１１……高周波磁化電流発振器、１２
……励磁コイル電圧計、１３……励磁コイル電流
計、１５……定電圧電源、１６……出力信号電流
計、１７……プリンタ、１８……コンピユータ、
１９……外部出力信号端子、２０……計器ボツク
ス、２４……レコーダ。
Figure 1 is a circuit diagram showing an embodiment of the leakage flux detection type magnetic flaw detector according to the present invention, Figure 2 is an external view showing its mechanical structure, and Figure 3 is a diagram explaining the basic idea of the present invention. , Fig. 4 is a diagram showing an example of a conventional leakage flux detection type flaw detector, Fig. 5 is an external view of a test steel billet with an artificial crack, and Fig. 6 is a diagram showing detection when measuring a test steel billet. A voltage recorder recording diagram, FIG. 7 is a characteristic diagram showing the relationship between flaw detection and detected voltage, and FIG. 8 is a diagram showing an example of actual measurement using the magnetic flaw detector of the present invention. DESCRIPTION OF SYMBOLS 1... Excitation coil, 2... Core, 4... Magnetic sensor, 5... Amplifier, 9... Detector, 10... Stabilized power supply, 11... High frequency magnetization current oscillator, 12
... Excitation coil voltmeter, 13 ... Excitation coil ammeter, 15 ... Constant voltage power supply, 16 ... Output signal ammeter, 17 ... Printer, 18 ... Computer,
19... External output signal terminal, 20... Instrument box, 24... Recorder.
Claims (1)
飽和磁束状態の磁界を発生させるため一つの枠に
取付けられた互いに平行な２本の励磁コイルと、 前記コイルと同一枠上に載置され前記試験品か
らの漏洩磁束を検出する磁気センサと、 前記励磁コイルに高周波電力を供給する高周波
電源と、 前記磁気センサの出力信号を増幅し処理する増
幅器と からなる磁気探傷器。 (2) 実用新案登録請求の範囲第１項において、
前記磁気センサが、互いに直角方向の漏洩磁束を
検出する２つのセンサからなることを特徴とする
磁気探傷器。[Claims for Utility Model Registration] (1) Two mutually parallel excitation coils attached to one frame for magnetizing a test article and generating a magnetic field in a locally saturated magnetic flux state inside the test article; a magnetic sensor that is placed on the same frame as the coil and detects leakage magnetic flux from the test article; a high-frequency power source that supplies high-frequency power to the excitation coil; and an amplifier that amplifies and processes the output signal of the magnetic sensor. A magnetic flaw detector consisting of (2) In paragraph 1 of the claims for utility model registration,
A magnetic flaw detector characterized in that the magnetic sensor includes two sensors that detect leakage magnetic flux in directions perpendicular to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987022198U JP2519501Y2 (en) | 1987-02-18 | 1987-02-18 | Magnetic flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987022198U JP2519501Y2 (en) | 1987-02-18 | 1987-02-18 | Magnetic flaw detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63129862U true JPS63129862U (en) | 1988-08-24 |
| JP2519501Y2 JP2519501Y2 (en) | 1996-12-04 |
Family
ID=30819353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987022198U Expired - Lifetime JP2519501Y2 (en) | 1987-02-18 | 1987-02-18 | Magnetic flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519501Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011001771A1 (en) * | 2009-07-01 | 2011-01-06 | 国立大学法人 岡山大学 | Leakage magnetic flux flaw inspection method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52167087U (en) * | 1977-06-16 | 1977-12-17 | ||
| JPS61161659U (en) * | 1985-03-28 | 1986-10-07 |
-
1987
- 1987-02-18 JP JP1987022198U patent/JP2519501Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52167087U (en) * | 1977-06-16 | 1977-12-17 | ||
| JPS61161659U (en) * | 1985-03-28 | 1986-10-07 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011001771A1 (en) * | 2009-07-01 | 2011-01-06 | 国立大学法人 岡山大学 | Leakage magnetic flux flaw inspection method and device |
| US9146214B2 (en) | 2009-07-01 | 2015-09-29 | National University Corporation Okayama University | Leakage magnetic flux flaw inspection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519501Y2 (en) | 1996-12-04 |
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