JPH026264U - - Google Patents
Info
- Publication number
- JPH026264U JPH026264U JP8300588U JP8300588U JPH026264U JP H026264 U JPH026264 U JP H026264U JP 8300588 U JP8300588 U JP 8300588U JP 8300588 U JP8300588 U JP 8300588U JP H026264 U JPH026264 U JP H026264U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- cross
- magnetic field
- calculation means
- magnet rotor
- 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
- 239000002131 composite material Substances 0.000 claims 3
- 238000005259 measurement Methods 0.000 claims 3
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図は本考案によるクロスコイル形指示計器
の基本構成図、第２図ａ，ｂは本考案が適用され
るクロスコイル形計器を示す平面図、及びＡ―Ａ
線に沿つた断面図、第３図は本考案の実施例を示
す回路ブロツク図、第４図は本考案による誤差補
正の原理を説明するための説明図、第５図は本考
案による計器の動作を説明するための説明図、第
６図は第３図のＣＰＵが行なう処理を示すフロー
チヤート図、第７図は第２図における計器の動作
原理を説明するための説明図、第８図は第２図の
クロスコイル形計器における各コイルに流れる電
流特性を示す図、第９図は第８図の電流特性によ
つて生じる振れ角の誤差角度特性を示す図である
。
２１……演算手段、２２……加算手段、２……
ＣＰＵ、３……ｓｉｎデユーテイパルス発生回路
、４……ｃｏｓデユーテイパルス発生回路、５，
６……ドライブ回路、Ｌ……クロスコイル、Ｌ１
，Ｌ２……コイル、Ｍｇ……マグネツトロータ、
１１……指針。
Fig. 1 is a basic configuration diagram of a cross-coil type indicating instrument according to the present invention, Fig. 2 a and b are plan views showing a cross-coil type indicator to which the present invention is applied, and A-A
3 is a circuit block diagram showing an embodiment of the present invention, FIG. 4 is an explanatory diagram for explaining the principle of error correction according to the present invention, and FIG. 5 is a diagram of a meter according to the present invention. An explanatory diagram for explaining the operation, FIG. 6 is a flowchart diagram showing the processing performed by the CPU in FIG. 3, FIG. 7 is an explanatory diagram for explaining the operating principle of the meter in FIG. 2, and FIG. 9 is a diagram showing the characteristic of the current flowing through each coil in the cross-coil type meter of FIG. 2, and FIG. 9 is a diagram showing the error angle characteristic of the deflection angle caused by the current characteristic of FIG. 8. 21...Arithmetic means, 22...Addition means, 2...
CPU, 3...sin duty pulse generation circuit, 4...cos duty pulse generation circuit, 5,
6...Drive circuit, L...Cross coil, L1
, L 2 ... coil, Mg ... magnetic rotor,
11...Guidelines.
Claims (1)
ら成るクロスコイルと、該クロスコイルの各コイ
ルが発生する磁界を合成した合成磁界内に回転可
能に配置したマグネツトロータとを備え、前記ク
ロスコイルに所定計測量に応じた電流を流し、前
記クロスコイルが発生する合成磁界の方向に前記
マグネツトロータを回転し、該マグネツトロータ
の回転角より所定計測量を指示するようにしたク
ロスコイル形指示計器において、 前記クロスコイルの第１、第２のコイルにより
それぞれ発生される最大磁界の大きさが互いに異
なることに起因する合成磁界方向の周期的な誤差
に対応する補正電流を演算する演算手段と、 該演算手段より得られた補正電流を、前記クロ
スコイルの少なくとも第１又は第２のコイルに供
給する所定計測量に対応する電流に加算する加算
手段とを備え、 該加算電流を第１又は第２のコイルに供給する
ようにした、 ことを特徴とするクロスコイル形指示計器。[Claims for Utility Model Registration] A cross coil consisting of first and second coils arranged to cross each other, and a magnetic field generated by each coil of the cross coil, which is rotatably arranged within a composite magnetic field. a magnet rotor, a current corresponding to a predetermined measurement amount is passed through the cross coil, the magnet rotor is rotated in the direction of the composite magnetic field generated by the cross coil, and a predetermined measurement is performed from the rotation angle of the magnet rotor. In a cross-coil type indicator that indicates a quantity, a periodic error in the direction of the composite magnetic field is caused by the fact that the magnitudes of the maximum magnetic fields generated by the first and second coils of the cross-coil are different from each other. a calculation means for calculating a correction current corresponding to the calculation means; and an addition means for adding the correction current obtained by the calculation means to the current corresponding to a predetermined measurement amount supplied to at least the first or second coil of the cross coil. A cross-coil type indicating instrument comprising: the additional current being supplied to the first or second coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8300588U JPH026264U (en) | 1988-06-24 | 1988-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8300588U JPH026264U (en) | 1988-06-24 | 1988-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH026264U true JPH026264U (en) | 1990-01-16 |
Family
ID=31307739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8300588U Pending JPH026264U (en) | 1988-06-24 | 1988-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH026264U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572463B2 (en) * | 1974-02-12 | 1982-01-16 |
-
1988
- 1988-06-24 JP JP8300588U patent/JPH026264U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572463B2 (en) * | 1974-02-12 | 1982-01-16 |
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