JPH0423819U - - Google Patents
Info
- Publication number
- JPH0423819U JPH0423819U JP6581690U JP6581690U JPH0423819U JP H0423819 U JPH0423819 U JP H0423819U JP 6581690 U JP6581690 U JP 6581690U JP 6581690 U JP6581690 U JP 6581690U JP H0423819 U JPH0423819 U JP H0423819U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic bearing
- cable
- relay box
- circuit
- displacement sensor
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000010356 wave oscillation Effects 0.000 description 1
Landscapes
- Control Of Position Or Direction (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
第１図は請求項１の考案に係る磁気軸受装置の
ブロツク図、第２図は請求項２の考案に係る磁気
軸受装置のブロツク図、第３図は従来の磁気軸受
装置のブロツク図、第４図はケーブルの浮遊容量
を説明する説明図である。
１……磁気軸受、４……変位センサ、４ａ……
コイル、６……正弦波発振回路、７……位置検出
回路、８……制御回路、１０……中継ボツクス、
１１……制御ボツクス、１２……第１のケーブル
、１３……第２のケーブル、Ｃ１……コンデンサ
。
FIG. 1 is a block diagram of a magnetic bearing device according to the invention of claim 1, FIG. 2 is a block diagram of a magnetic bearing device according to the invention of claim 2, and FIG. 3 is a block diagram of a conventional magnetic bearing device. FIG. 4 is an explanatory diagram illustrating the stray capacitance of a cable. 1...Magnetic bearing, 4...Displacement sensor, 4a...
Coil, 6...Sine wave oscillation circuit, 7...Position detection circuit, 8...Control circuit, 10...Relay box,
DESCRIPTION OF SYMBOLS 11...Control box, 12...First cable, 13...Second cable, C1 ...Capacitor.
Claims (1)
で回転軸の変位が検出される磁気軸受と、 上記磁気軸受へ所定長さのケーブルをもつて接
続されるとともに、このケーブルを介して上記変
位センサと接続したコンデンサよりなる共振回路
と、この共振回路へキヤリア信号を印加する発振
回路と、上記のような印加によつてコイル接続点
より出力された変位信号を位置信号に変換する位
置検出回路とを備えてなる中継ボツクスと、 上記中継ボツクスへ任意長さのケーブルをもつ
て接続されるとともに、そのケーブルを介して出
力される上記位置信号に基き、上記磁気軸受の電
磁石を励磁して、回転軸を所定の位置に保持制御
する制御回路を備えた制御ボツクスと、 からなることを特徴とする磁気軸受装置。 ２ 磁気軸受と中継ボツクスとを一体に設け、共
振回路のコンデンサと変位センサを直接に接続し
たことを特徴とする請求項１に記載の磁気軸受装
置。[Claims for Utility Model Registration] 1. A magnetic bearing in which the displacement of a rotating shaft is detected by a displacement sensor formed by a pair of coils connected in series, and connected to the magnetic bearing with a cable of a predetermined length, A resonant circuit consisting of a capacitor connected to the displacement sensor via this cable, an oscillation circuit that applies a carrier signal to this resonant circuit, and a displacement signal output from the coil connection point by the above application to the position. A relay box comprising a position detection circuit that converts into a signal, and a relay box connected to the relay box with a cable of an arbitrary length, and based on the position signal outputted via the cable, the magnetic bearing 1. A magnetic bearing device comprising: a control box equipped with a control circuit that excites an electromagnet to control and hold a rotating shaft in a predetermined position. 2. The magnetic bearing device according to claim 1, wherein the magnetic bearing and the relay box are integrally provided, and the capacitor of the resonance circuit and the displacement sensor are directly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6581690U JPH0423819U (en) | 1990-06-21 | 1990-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6581690U JPH0423819U (en) | 1990-06-21 | 1990-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0423819U true JPH0423819U (en) | 1992-02-26 |
Family
ID=31597989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6581690U Pending JPH0423819U (en) | 1990-06-21 | 1990-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997037893A1 (en) | 1996-04-08 | 1997-10-16 | The Procter & Gamble Company | Liquid container having squeezer and inner lid therefor |
-
1990
- 1990-06-21 JP JP6581690U patent/JPH0423819U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997037893A1 (en) | 1996-04-08 | 1997-10-16 | The Procter & Gamble Company | Liquid container having squeezer and inner lid therefor |
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