JPH0194669U - - Google Patents
Info
- Publication number
- JPH0194669U JPH0194669U JP4177388U JP4177388U JPH0194669U JP H0194669 U JPH0194669 U JP H0194669U JP 4177388 U JP4177388 U JP 4177388U JP 4177388 U JP4177388 U JP 4177388U JP H0194669 U JPH0194669 U JP H0194669U
- Authority
- JP
- Japan
- Prior art keywords
- case
- boss
- rotor
- rotating shaft
- bearing
- 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
- 239000011553 magnetic fluid Substances 0.000 claims description 2
- 239000003989 dielectric material Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図は従来例を示す断面図、第２図は従来例
のカツプリング車の正面図、第３図は本発明の一
例を示す断面図、第４図は本発明のリング状マグ
ネツトの斜視図、第５図はリングマグネツトと磁
性体製ロータ軸との間の磁束分布図、第６図はス
テータ及びロータの正面図、第７図はステータと
ロータの関係を示す斜視図、第８図は電極とロー
タ翼が均等面積で挟まれる場合の正面図、第９図
はロータが角度θラジアンだけ回転した場合の正
面図、第１０図は４個のコンデンサで組んだブリ
ツジ回路である。
図中、１，２…ステータ、３，４，５，６…ス
テータ固定台、７…ロータ、８…ロータ軸、９…
軸受け、１０…カツプリング車、１１…金属板、
１２…ケース、１２ａ…ケースのボス、１３…駆
動用軸、１４…カツプリング車、１５，１６…マ
グネツト、１７，１８，１９，２０…導通用ピン
、２１…リング状マグネツト、２２，２３…磁性
流体。
Fig. 1 is a sectional view showing a conventional example, Fig. 2 is a front view of a conventional coupling wheel, Fig. 3 is a sectional view showing an example of the present invention, and Fig. 4 is a perspective view of a ring-shaped magnet of the present invention. , Fig. 5 is a magnetic flux distribution diagram between the ring magnet and the magnetic rotor shaft, Fig. 6 is a front view of the stator and rotor, Fig. 7 is a perspective view showing the relationship between the stator and rotor, and Fig. 8 9 is a front view when the electrodes and rotor blades are sandwiched with equal area, FIG. 9 is a front view when the rotor is rotated by an angle θ radian, and FIG. 10 is a bridge circuit made up of four capacitors. In the figure, 1, 2...stator, 3, 4, 5, 6... stator fixing base, 7... rotor, 8... rotor shaft, 9...
bearing, 10...coupling wheel, 11...metal plate,
DESCRIPTION OF SYMBOLS 12... Case, 12a... Boss of case, 13... Drive shaft, 14... Coupling wheel, 15, 16... Magnet, 17, 18, 19, 20... Conductive pin, 21... Ring-shaped magnet, 22, 23... Magnetic fluid.
Claims (1)
て支承せしめ、回転軸における前記ケース内の部
位に誘電材製ロータを固嵌し、またケース内に前
記ロータと対峙するステータ電極板を設け、また
前記ボスへ両端面がＮ，Ｓ極をなすリング状のマ
グネツトを設けて、回転軸のまわりとボスにおけ
るマグネツトを設けた部分の内周面間の周隙に磁
性流体を封入せしめた静電容量式回転変位角発信
器。 A rotating shaft passing through a bearing boss of the case is supported by a bearing, a rotor made of a dielectric material is firmly fitted to a portion of the rotating shaft inside the case, and a stator electrode plate facing the rotor is provided inside the case, Further, a ring-shaped magnet with both end faces having N and S poles is provided on the boss, and a magnetic fluid is sealed in the circumferential gap between the inner peripheral surface of the portion of the boss where the magnet is provided, and the electrostatic Capacitive rotational displacement angle transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4177388U JPH0194669U (en) | 1988-03-28 | 1988-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4177388U JPH0194669U (en) | 1988-03-28 | 1988-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0194669U true JPH0194669U (en) | 1989-06-22 |
Family
ID=31268204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4177388U Pending JPH0194669U (en) | 1988-03-28 | 1988-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0194669U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594061A (en) * | 1978-12-11 | 1980-07-17 | Ezekiel Frederick D | Shaft sealing device using with magnetic liquid |
-
1988
- 1988-03-28 JP JP4177388U patent/JPH0194669U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594061A (en) * | 1978-12-11 | 1980-07-17 | Ezekiel Frederick D | Shaft sealing device using with magnetic liquid |
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