JPS5819278U - magnetic detection device - Google Patents
magnetic detection deviceInfo
- Publication number
- JPS5819278U JPS5819278U JP11491181U JP11491181U JPS5819278U JP S5819278 U JPS5819278 U JP S5819278U JP 11491181 U JP11491181 U JP 11491181U JP 11491181 U JP11491181 U JP 11491181U JP S5819278 U JPS5819278 U JP S5819278U
- Authority
- JP
- Japan
- Prior art keywords
- angle
- axes
- detection device
- magnetic
- difference
- 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
Links
Landscapes
- Measuring Magnetic Variables (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
第１図は従来の磁気探知装置を示す図、第２図はこの考
案の原理を説明するための３軸磁界を示す図、第３図は
この考案の一実施例を示す回路接続図である。
１；マンホール、２；１軸差動形磁気検出器、３；ケー
ブル、４；磁気異常物、１１・１２；３軸直交形フラツ
クスゲート磁気検知器、１３２；Ｚ軸差動増幅器、１３
Ｘ；Ｘ軸差動増幅器、１３Ｙ；Ｙ軸差動増幅器、１４・
１５・１６・１７・１８；掛算器、１９；加算器、２０
；関数発生器。Fig. 1 is a diagram showing a conventional magnetic detection device, Fig. 2 is a diagram showing a three-axis magnetic field to explain the principle of this invention, and Fig. 3 is a circuit connection diagram showing an embodiment of this invention. . 1; Manhole, 2; Single-axis differential magnetic detector, 3; Cable, 4; Magnetic abnormality, 11, 12; Three-axis orthogonal flux gate magnetic detector, 132; Z-axis differential amplifier, 13
X; X-axis differential amplifier, 13Y; Y-axis differential amplifier, 14.
15, 16, 17, 18; Multiplier, 19; Adder, 20
;Function generator.
Claims (1)
ら２個の直交３軸形フラツクスゲ・−ト磁気検知器のＺ
軸、Ｘ軸、Ｙ軸の検知出力の両者の差をそれぞれ導出す
る手段と、φ＝ωｏｔの角度信号を発生する手段と、前
記３軸の主軸とする前記差導出手段出力に任意設定角α
の余弦値を掛算する手段と、前記３軸の残りの一方軸の
前記差導出手段出力に前記角ゆの余弦値と角αの正弦値
を掛算する手段と、前記３軸の残りの他方軸の前記差導
出手段出力に前記角φの正弦値と角αの正弦値を掛算す
る手段と、さらに前記各掛算結果を合成加算する手段と
を備え、得られる合成磁界により、磁気異常物を検知す
ることを特徴とする磁気探知装置。Two orthogonal triaxial fluxgate magnetic detectors and the Z of these two orthogonal triaxial fluxgate magnetic detectors.
means for respectively deriving the difference between the detected outputs of the three axes, the X-axis, and the Y-axis;
means for multiplying the output of the difference deriving means of one of the remaining three axes by the cosine value of the angle y and the sine value of the angle α; and the other of the three axes. means for multiplying the output of the difference deriving means by the sine value of the angle φ and the sine value of the angle α, and further means for synthesizing and adding the respective multiplication results, and detecting a magnetic abnormality by the resulting composite magnetic field. A magnetic detection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11491181U JPS5819278U (en) | 1981-07-31 | 1981-07-31 | magnetic detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11491181U JPS5819278U (en) | 1981-07-31 | 1981-07-31 | magnetic detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5819278U true JPS5819278U (en) | 1983-02-05 |
Family
ID=29909189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11491181U Pending JPS5819278U (en) | 1981-07-31 | 1981-07-31 | magnetic detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5819278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004518946A (en) * | 2000-08-30 | 2004-06-24 | ガス、リサーチ、インステイチユート | Multi-axis detector for detecting buried targets |
-
1981
- 1981-07-31 JP JP11491181U patent/JPS5819278U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004518946A (en) * | 2000-08-30 | 2004-06-24 | ガス、リサーチ、インステイチユート | Multi-axis detector for detecting buried targets |
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