JPS6273281U - - Google Patents
Info
- Publication number
- JPS6273281U JPS6273281U JP16360085U JP16360085U JPS6273281U JP S6273281 U JPS6273281 U JP S6273281U JP 16360085 U JP16360085 U JP 16360085U JP 16360085 U JP16360085 U JP 16360085U JP S6273281 U JPS6273281 U JP S6273281U
- Authority
- JP
- Japan
- Prior art keywords
- sensing elements
- magnetic sensing
- determining means
- output
- magnetic
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Measuring Magnetic Variables (AREA)
Description
第１図は本考案によるマグネツト探知器の一実
施例を示すブロツク図、第２図は本考案によるマ
グネツト探知器に用いられる磁気検知装置の一例
を示す図、第３図は第１図に示す磁気検知装置の
磁気指向性を示す図である。
１……リング状コア、２……励振巻線、３……
Ｘ軸方向出力コイル、４……Ｙ軸方向出力コイル
、５……磁気検知装置、６……発振器、７……周
波数逓倍器、８，９……同期検波器、１０，１１
……信号選別回路、１２……アンド（ＡＮＤ）回
路、１３……警報器、１４，１５……定電流発生
器。
FIG. 1 is a block diagram showing one embodiment of the magnetic detector according to the present invention, FIG. 2 is a diagram showing an example of the magnetic detection device used in the magnetic detector according to the present invention, and FIG. 3 is the same as shown in FIG. 1. FIG. 3 is a diagram showing magnetic directivity of a magnetic detection device. 1...Ring-shaped core, 2...Excitation winding, 3...
X-axis output coil, 4... Y-axis output coil, 5... Magnetic detection device, 6... Oscillator, 7... Frequency multiplier, 8, 9... Synchronous detector, 10, 11
... Signal selection circuit, 12 ... AND circuit, 13 ... Alarm, 14, 15 ... Constant current generator.
Claims (1)
え、該磁気検知素子を一定の周波数で励振し、該
磁気検出素子の各出力を前記励振波の２倍の周波
数波で同期検波し、該同期検波出力のそれぞれを
予め定められたレベルに基づいて高レベルあるい
は低レベルに選別し、その論理積を求める判定手
段を備えており、該判定手段の出力により磁気を
探知するようにしたことを特徴とするマグネツト
探知器。 A plurality of magnetic sensing elements are provided in a mutually orthogonal relationship, the magnetic sensing elements are excited at a constant frequency, each output of the magnetic sensing elements is synchronously detected with a frequency wave twice that of the excitation wave, and the synchronous detection is performed. It is characterized by comprising a determining means for sorting each of the outputs into high level or low level based on a predetermined level and calculating the logical product, and detecting magnetism based on the output of the determining means. Magnetic detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16360085U JPS6273281U (en) | 1985-10-26 | 1985-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16360085U JPS6273281U (en) | 1985-10-26 | 1985-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6273281U true JPS6273281U (en) | 1987-05-11 |
Family
ID=31091945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16360085U Pending JPS6273281U (en) | 1985-10-26 | 1985-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6273281U (en) |
-
1985
- 1985-10-26 JP JP16360085U patent/JPS6273281U/ja active Pending
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