JPH0181516U - - Google Patents
Info
- Publication number
- JPH0181516U JPH0181516U JP1987176976U JP17697687U JPH0181516U JP H0181516 U JPH0181516 U JP H0181516U JP 1987176976 U JP1987176976 U JP 1987176976U JP 17697687 U JP17697687 U JP 17697687U JP H0181516 U JPH0181516 U JP H0181516U
- Authority
- JP
- Japan
- Prior art keywords
- rotation angle
- pick
- angle sensor
- capacitor element
- conductive material
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図、第２図は本考案の第１の実施例を示し
、第１図は本実施例による回転角センサの全体構
成図、第２図は回転板とピツクアツプを示す第１
図中の周方向要部縦断面図、第３図、第４図は本
考案の第２の実施例を示し、第３図は回転板とピ
ツクアツプを示す径方向要部縦断面図、第４図は
第１、第２のコンデンサ素子の等価回路図、第５
図ないし第８図は先行技術に係り、第５図は先行
技術による回転角センサの全体構成図、第６図は
回転板とピツクアツプを示す第５図中の周方向要
部縦断面図、第７図は静電容量信号の波形図、第
８図は信号変換回路の具体例を示す回路図である
。
１……回転軸、２……回転板、３……凹凸部、
４，３１，３２……ピツクアツプ、２１，２２，
３４，３５……樹脂材料、２３，３６，３７……
コンデンサ素子。
1 and 2 show a first embodiment of the present invention, FIG. 1 is an overall configuration diagram of a rotation angle sensor according to this embodiment, and FIG. 2 is a first embodiment showing a rotating plate and a pickup.
3 and 4 are longitudinal cross-sectional views of the main parts in the circumferential direction, and FIG. The figure shows an equivalent circuit diagram of the first and second capacitor elements, and the fifth
8 to 8 relate to the prior art, FIG. 5 is an overall configuration diagram of a rotation angle sensor according to the prior art, FIG. 6 is a vertical sectional view of main parts in the circumferential direction of FIG. FIG. 7 is a waveform diagram of a capacitance signal, and FIG. 8 is a circuit diagram showing a specific example of a signal conversion circuit. 1... Rotating shaft, 2... Rotating plate, 3... Uneven part,
4, 31, 32... pick up, 21, 22,
34, 35... Resin material, 23, 36, 37...
capacitor element.
Claims (1)
転板と、該回転板の少なくとも一側表面にその回
転方向に沿つて所定角度毎に交互に形成した凹凸
部と、該凹凸部に近接して対向するように配設し
た導電性材料からなるピツクアツプとによりコン
デンサ素子を形成し、前記回転板の回転に応じて
該コンデンサ素子の静電容量変化を回転角信号と
して導出するようにした回転角センサにおいて、
前記回転板の表面とピツクアツプとを樹脂材料に
よりモールドしたことを特徴とする回転角センサ
。 A rotating plate made of a conductive material that rotates together with a rotating shaft; uneven portions formed alternately at predetermined angles along the rotational direction on at least one side surface of the rotating plate; and adjacent to the uneven portions. A rotation angle sensor in which a capacitor element is formed by pick-ups made of conductive material arranged to face each other, and a change in capacitance of the capacitor element is derived as a rotation angle signal in accordance with the rotation of the rotary plate. In,
A rotation angle sensor characterized in that the surface of the rotary plate and the pick-up are molded with a resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176976U JPH0181516U (en) | 1987-11-19 | 1987-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176976U JPH0181516U (en) | 1987-11-19 | 1987-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181516U true JPH0181516U (en) | 1989-05-31 |
Family
ID=31468666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987176976U Pending JPH0181516U (en) | 1987-11-19 | 1987-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181516U (en) |
-
1987
- 1987-11-19 JP JP1987176976U patent/JPH0181516U/ja active Pending
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