JPS631245Y2 - - Google Patents
Info
- Publication number
- JPS631245Y2 JPS631245Y2 JP1980077110U JP7711080U JPS631245Y2 JP S631245 Y2 JPS631245 Y2 JP S631245Y2 JP 1980077110 U JP1980077110 U JP 1980077110U JP 7711080 U JP7711080 U JP 7711080U JP S631245 Y2 JPS631245 Y2 JP S631245Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnetic field
- coils
- generating
- supplied
- 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.)
- Expired
Links
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Description
【考案の詳細な説明】
本考案は例えば温度計、圧力計又は燃料計等に
使用される交差コイル式計器に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crossed coil type meter used, for example, as a thermometer, pressure gauge, or fuel gauge.
従来の交差コイル式計器では交差した２個のコ
イルのいずれか一方にセンサによつて検出された
被測定量に対応した直流信号を供給して指針を駆
動するようにしているが、かかる従来の交差コイ
ル式計器では指度が安定するまではヒステリシス
を生じ、指針が上昇方向の場合に読み取る値と下
降方向の場合に読み取る値が一致しなくなり、正
確な測定ができ難い問題があつた。 In conventional crossed coil meters, a direct current signal corresponding to the measured quantity detected by a sensor is supplied to one of two crossed coils to drive the pointer. With crossed coil meters, hysteresis occurs until the index becomes stable, and the value read when the pointer is in the upward direction does not match the value read when it is in the downward direction, making it difficult to make accurate measurements.
本考案はこの問題点を解消するためになされた
もので、交差した２個のコイルのいずれか一方に
のみパルス信号を供給して、そのコイルより発生
する磁界が断続的に生じるようにして、可動マグ
ネツトには目標値に対して常に回転微振動を生ぜ
しめて指度が速やかに安定されるようにした交差
コイル式計器を提供することを目的とするもので
ある。 The present invention was devised to solve this problem by supplying a pulse signal to only one of the two crossed coils so that the magnetic field generated by that coil is intermittently generated. The object of the present invention is to provide a cross-coil type instrument in which the movable magnet constantly generates rotational slight vibration relative to a target value so that the index is quickly stabilized.
以下に本考案を図面に示す実施例に基いて詳細
に説明する。 The present invention will be explained in detail below based on embodiments shown in the drawings.
第１図において、N1とN2は互に直交方向に磁
界を発生するように巻かれたコイルであつて、こ
の一方のコイルN1は非安定マルチバイブレータ
等のパルス発振回路Ｐを経て電源Ｅに接続されて
いる。また他方のコイルN2にはセンサを構成す
る可変式抵抗Ｒが接続されるようになつている。
Ｍは可動マグネツトで、前記コイルN1，N2が発
生する磁界の合成方向に回動されるものである。
従つて、一方のコイルN1にはパルス発振回路か
ら出力されるパルス電流が供給され、これによつ
て電流の実効値に比例した発生磁界も断続された
ものとなる。一方、他のコイルN2に流れる電流
はセンサＲの抵抗値に応じた断続しない電流とな
り、電流に比例した発生磁界も断続しないもので
あるから、コイルN1から発生する磁界とコイル
N2から発生する磁界の合成方向に可動マグネツ
トＭが指向するが、コイルN1にはパルス発振回
路からのパルス電流によつて断続磁界が生じるこ
とから、この断続磁界により可動マグネツトＭに
は振動を起しこれによつてヒステリシスが解消さ
れ指度が速やかに安定される効果がある。 In Figure 1, N 1 and N 2 are coils wound to generate magnetic fields in directions perpendicular to each other, and one of the coils, N 1 , is connected to a power source via a pulse oscillation circuit P such as an unstable multivibrator. Connected to E. Further, a variable resistor R constituting a sensor is connected to the other coil N2 .
M is a movable magnet which is rotated in the direction in which the magnetic fields generated by the coils N 1 and N 2 are combined.
Therefore, the pulse current output from the pulse oscillation circuit is supplied to one coil N1 , and thereby the generated magnetic field proportional to the effective value of the current is also interrupted. On the other hand, the current flowing through the other coil N2 is an uninterrupted current according to the resistance value of the sensor R, and the generated magnetic field proportional to the current is also uninterrupted, so the magnetic field generated from the coil N1 and the coil
The movable magnet M is oriented in the direction in which the magnetic fields generated from N2 are combined, but since an intermittent magnetic field is generated in the coil N1 by the pulse current from the pulse oscillation circuit, this intermittent magnetic field causes the movable magnet M to vibrate. This has the effect of eliminating hysteresis and quickly stabilizing the index.
第２図に示す第２実施例はクラスタメータ等の
ように複数個の交差コイル式計器ユニツトM1，
M2，M3を並設する場合であつて、この場合は、
各計器のコイルN1に共通してパルス発振回路Ｐ
を接続して前記実施例と同様の効果を得るもので
ある。 The second embodiment shown in FIG. 2 includes a plurality of crossed coil type instrument units M 1 ,
When installing M 2 and M 3 in parallel, in this case,
Pulse oscillation circuit P common to coil N1 of each meter
By connecting the two, the same effect as in the previous embodiment can be obtained.
尚、上記いずれの実施例においてもパルス発振
回路Ｐは交差コイル式計器の一方のコイルN1に
接続しているが、このパルス発振回路Ｐは他方の
コイルN2でもよい。またコイルN1と直列に、コ
イルN2による磁界方向と180゜異なる方向に磁界
を発生するコイルを設けてもよく、この場合、指
針の指示角は180゜近くまで得られる。 In each of the above embodiments, the pulse oscillation circuit P is connected to one coil N1 of the crossed coil type meter, but the pulse oscillation circuit P may be connected to the other coil N2 . Further, a coil that generates a magnetic field in a direction 180 degrees different from the direction of the magnetic field produced by the coil N 2 may be provided in series with the coil N 1 , and in this case, the pointing angle of the pointer can be obtained up to nearly 180 degrees.
以上のように本考案は互に交差する方向に磁界
を発生するための複数個のコイルN1，N2と、該
複数個のコイルの磁気作用下に回転可能に配設さ
れた可動マグネツトＭとを備え、前記複数個のコ
イルN1，N2のうち一方の方向に磁界を発生する
ためのコイルN1は信号レベルが一定の信号が供
給され、前記複数個のコイルN1，N2のうち他の
方向に磁界を発生するためのコイルN2は被測定
量に応じて信号レベルが変化する信号が供給され
る交差コイル式計器において、前記一方の方向に
磁界を発生するためのコイルN1又は前記他の方
向に磁界を発生するためのコイルN2のいずれか
一方のコイルのみを、パルス発振回路Ｐを介して
電源に接続し、該一方のコイルにパルス電流を供
給することを特徴とする交差コイル式計器である
から、本考案によれば一方のコイルにのみ供給さ
れるパルス信号によつて指針には常に回転微振動
が生じることから指示範囲の全域において計器指
度のヒステリシスが解消され、指示を読み取る際
に指針の上昇方向で読みとる場合と下降方向で読
み取る場合で誤差を生じることがなくなり精度の
高い交差コイル式計器を提供できる。 As described above, the present invention includes a plurality of coils N 1 and N 2 for generating magnetic fields in mutually intersecting directions, and a movable magnet M that is arranged to be rotatable under the magnetic action of the plurality of coils. The coil N 1 for generating a magnetic field in one direction among the plurality of coils N 1 and N 2 is supplied with a signal with a constant signal level, and the coil N 1 for generating a magnetic field in one direction among the plurality of coils N 1 and N 2 Coil N 2 for generating a magnetic field in the other direction is a coil for generating a magnetic field in one direction in a crossed coil type instrument that is supplied with a signal whose signal level changes depending on the measured quantity. Only one of the coils N 1 and N 2 for generating a magnetic field in the other direction is connected to a power source via a pulse oscillation circuit P, and a pulse current is supplied to the one coil. Since it is a cross-coil type instrument, according to the present invention, the pulse signal supplied to only one coil always causes slight rotational vibration in the pointer, which reduces the hysteresis of the instrument index throughout the indicated range. It is possible to provide a highly accurate cross-coil type meter, which eliminates errors when reading instructions in the ascending direction of the pointer and when reading in the descending direction of the pointer.
図面はいずれも本考案の実施例を示し、第１図
はその第１実施例による回路図、第２図は第２実
施例の回路図である。
N1，N2……コイル、Ｍ……可動マグネツト、
Ｒ……センサ、Ｅ……電源、Ｐ……パルス発振回
路、M1，M2，M3……交差コイル式計器ユニツ
ト。
The drawings all show embodiments of the present invention; FIG. 1 is a circuit diagram of the first embodiment, and FIG. 2 is a circuit diagram of the second embodiment. N 1 , N 2 ... Coil, M ... Movable magnet,
R...Sensor, E...Power supply, P...Pulse oscillation circuit, M1 , M2 , M3 ...Cross coil type instrument unit.
Claims (1)
個のコイルN1，N2と、該複数個のコイルの磁気
作用下に回転可能に配設された可動マグネツトＭ
とを備え、前記複数個のコイルN1，N2のうち一
方の方向に磁界を発生するためのコイルN1は信
号レベルが一定の信号が供給され、前記複数個の
コイルN1，N2のうち他の方向に磁界を発生する
ためのコイルN2は被測定量に応じて信号レベル
が変化する信号が供給される交差コイル式計器に
おいて、前記一方の方向に磁界を発生するための
コイルN1又は前記他の方向に磁界を発生するた
めのコイルN2のいずれか一方のコイルのみをパ
ルス発振回路Ｐを介して電源に接続し、該一方の
コイルのみにパルス電流を供給することを特徴と
する交差コイル式計器。 A plurality of coils N 1 and N 2 for generating magnetic fields in mutually intersecting directions, and a movable magnet M rotatably arranged under the magnetic action of the plurality of coils.
The coil N 1 for generating a magnetic field in one direction among the plurality of coils N 1 and N 2 is supplied with a signal with a constant signal level, and the coil N 1 for generating a magnetic field in one direction among the plurality of coils N 1 and N 2 Coil N 2 for generating a magnetic field in the other direction is a coil for generating a magnetic field in one direction in a crossed coil type instrument that is supplied with a signal whose signal level changes depending on the measured quantity. Only one of the coils N 1 and N 2 for generating a magnetic field in the other direction is connected to a power source via the pulse oscillation circuit P, and a pulse current is supplied only to the one coil. Features a crossed coil type instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980077110U JPS631245Y2 (en) | 1980-06-03 | 1980-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980077110U JPS631245Y2 (en) | 1980-06-03 | 1980-06-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS572462U JPS572462U (en) | 1982-01-07 |
| JPS631245Y2 true JPS631245Y2 (en) | 1988-01-13 |
Family
ID=29439710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980077110U Expired JPS631245Y2 (en) | 1980-06-03 | 1980-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS631245Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824214Y2 (en) * | 1978-10-27 | 1983-05-24 | カルソニックカンセイ株式会社 | Cross-coil instrument drive circuit |
-
1980
- 1980-06-03 JP JP1980077110U patent/JPS631245Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS572462U (en) | 1982-01-07 |
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