JPS61205072U - - Google Patents
Info
- Publication number
- JPS61205072U JPS61205072U JP8858886U JP8858886U JPS61205072U JP S61205072 U JPS61205072 U JP S61205072U JP 8858886 U JP8858886 U JP 8858886U JP 8858886 U JP8858886 U JP 8858886U JP S61205072 U JPS61205072 U JP S61205072U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- rotation speed
- drive circuit
- display device
- coils
- 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
- 230000004907 flux Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Indicating Measured Values (AREA)
Description
第１図は従来の回転数差表示装置のブロツク構
成図、第２図は本考案に係る回転数差表示装置の
一実施例の構成図、第３図は回転数差と振れ角の
関係を示すグラフ、第４図は永久磁石に作用する
磁界のベクトル図である。
１，２……回転軸、３，４……センサ、１０，
１２……波形整形回路、１１，１３……メータ駆
動回路、１４，１５……コイル、１６……永久磁
石、１７……軸、１８……指針、１９……目盛板
、２０……零復帰コイル。
Fig. 1 is a block diagram of a conventional rotational speed difference display device, Fig. 2 is a block diagram of an embodiment of the rotational speed difference display device according to the present invention, and Fig. 3 shows the relationship between the rotational speed difference and the deflection angle. The graph shown in FIG. 4 is a vector diagram of the magnetic field acting on the permanent magnet. 1, 2...Rotation axis, 3, 4...Sensor, 10,
12... Waveform shaping circuit, 11, 13... Meter drive circuit, 14, 15... Coil, 16... Permanent magnet, 17... Shaft, 18... Pointer, 19... Scale plate, 20... Zero return coil.
Claims (1)
第１の駆動回路と、第２の回転体の回転数に応じ
た電流を出力する第２の駆動回路と、第１の駆動
回路の出力電流を流す第１のコイルと、第２の駆
動回路の出力電流を流す第２のコイルと、両コイ
ルより発生する磁束と磁気的に結合し、両コイル
とは相対的に回転可能な永久磁石と、コイルと永
久磁石のうち回転する方に取付けられた指針と、
両コイルに電流が流れていないとき指針が零目盛
を指すようにコイルと永久磁石のうち回転する方
を駆動する零復帰手段とを備え、第１のコイル，
第２のコイルの通電により発生する各磁束が永久
磁石に対して互いに反対方向の回転力を生じるよ
うに構成し、第１のコイルと第２のコイルに流れ
る電流の差に応じた角度で指針が振れるようにし
たことを特徴とする回転数差表示装置。 A first drive circuit that outputs a current according to the rotation speed of the first rotating body, a second drive circuit that outputs a current according to the rotation speed of the second rotation body, and A first coil that carries an output current, a second coil that carries an output current of a second drive circuit, and a permanent coil that is magnetically coupled to the magnetic flux generated by both coils and that is rotatable relative to the coils. A magnet, a pointer attached to the rotating one of the coil and the permanent magnet,
a first coil, a first coil;
The magnetic flux generated by energization of the second coil is configured to generate rotational force in opposite directions to the permanent magnet, and the pointer is set at an angle corresponding to the difference between the currents flowing in the first coil and the second coil. A rotation speed difference display device characterized in that the rotation speed difference display device is made to swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8858886U JPS61205072U (en) | 1986-06-12 | 1986-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8858886U JPS61205072U (en) | 1986-06-12 | 1986-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61205072U true JPS61205072U (en) | 1986-12-24 |
Family
ID=30641873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8858886U Pending JPS61205072U (en) | 1986-06-12 | 1986-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61205072U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49460U (en) * | 1972-04-04 | 1974-01-05 |
-
1986
- 1986-06-12 JP JP8858886U patent/JPS61205072U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49460U (en) * | 1972-04-04 | 1974-01-05 |
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