JPS61117579U - - Google Patents
Info
- Publication number
- JPS61117579U JPS61117579U JP65085U JP65085U JPS61117579U JP S61117579 U JPS61117579 U JP S61117579U JP 65085 U JP65085 U JP 65085U JP 65085 U JP65085 U JP 65085U JP S61117579 U JPS61117579 U JP S61117579U
- Authority
- JP
- Japan
- Prior art keywords
- induction motor
- pulse voltage
- rectifier
- iron core
- voltage
- 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
- 230000006698 induction Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 1
Description
第１図はこの考案の誘導電動機のトルク検出装
置の一実施例の構成図、第２図は誘導電動機のト
ルクとすべりの関係を示す特性曲線図、第３図及
び第４図はこの考案の原理を説明するものであつ
て第３図Ａは交流電流の周波数に比例するパルス
周波数を有するパルス電圧を得る装置の説明図、
同図Ｂは同図Ａの装置における交流電流ｉとパル
ス電圧Ｅ１との関係を示す説明図、第４図Ａは永
久磁石の回転数に比例するパルス周波数を有する
パルス電圧を得る装置の説明図、同図Ｂは同図Ａ
の装置における鉄心中の磁束φとパルス電圧Ｅ２
との関係を示す説明図である。
符号の説明、１１：誘導電動機の回転磁界の巻
線、１２：誘導電動機の回転子、１３：回転子の
回転軸、１４：トロイダルコイル、１４ａ：その
一次コイル、１４ｂ：その出力コイル、１５：ト
ロイダルコイルの鉄心、１６：馬蹄形鉄心、１７
：その出力コイル、１８：永久磁石、２０Ｓ，２
０Ｒ：整流装置、２１：演算器。
Fig. 1 is a block diagram of an embodiment of the induction motor torque detection device of this invention, Fig. 2 is a characteristic curve diagram showing the relationship between torque and slip of the induction motor, and Figs. 3 and 4 are of this invention. To explain the principle, FIG. 3A is an explanatory diagram of a device for obtaining a pulse voltage having a pulse frequency proportional to the frequency of alternating current;
4B is an explanatory diagram showing the relationship between alternating current i and pulse voltage E1 in the device shown in FIG. Figure, Figure B is Figure A
Magnetic flux φ in the iron core and pulse voltage E 2 in the device
FIG. Explanation of symbols, 11: Winding of rotating magnetic field of induction motor, 12: Rotor of induction motor, 13: Rotating shaft of rotor, 14: Toroidal coil, 14a: Primary coil thereof, 14b: Output coil thereof, 15: Toroidal coil core, 16: Horseshoe-shaped core, 17
: Its output coil, 18: Permanent magnet, 20S, 2
0R: Rectifier, 21: Arithmetic unit.
Claims (1)
期速度に比例するパルス周波数を有する第１のパ
ルス電圧を発生する装置と、 第２の鉄心の出力コイルに前記誘導電動機の回
転子の回転数に比例するパルス周波数を有する第
２のパルス電圧を発生する装置と、 前記第１のパルス電圧を整流する第１の整流装
置と、 前記第２のパルス電圧を整流する第２の整流装
置と、 前記第１の整流装置の出力電圧と前記第２の整
流装置の出力電圧との電圧比を検出する装置と、 を具える誘導電動機のトルク検出装置。 (2) 前記の第１のパルス電圧を発生する装置は
、前記第１の鉄心に巻かれた誘導電動機の回転磁
界の巻線の一部と前記第１の鉄心に巻かれた前記
出力コイルとを含む実用新案登録請求の範囲(1)
に記載の誘導電動機のトルク検出装置。 (3) 前記の第２のパルス電圧を発生する装置は
、前記第２の鉄心の両端に相対して配設され、前
記誘導電動機の回転子の回転に従つて回転する永
久磁石と前記第２の鉄心に巻かれた前記出力コイ
ルとを含む前記実用新案登録請求の範囲のどちら
かに記載の誘導電動機のトルク検出装置。[Claims for Utility Model Registration] (1) A device for generating a first pulse voltage having a pulse frequency proportional to the synchronous speed of an induction motor in an output coil of a first iron core; a device for generating a second pulse voltage having a pulse frequency proportional to the rotation speed of the rotor of the induction motor; a first rectifier for rectifying the first pulse voltage; and a first rectifier for rectifying the first pulse voltage; A torque detection device for an induction motor, comprising: a second rectifier that rectifies; and a device that detects a voltage ratio between the output voltage of the first rectifier and the output voltage of the second rectifier. (2) The device for generating the first pulse voltage includes a part of the winding of the rotating magnetic field of the induction motor wound around the first iron core, and the output coil wound around the first iron core. Scope of claims for utility model registration including (1)
A torque detection device for an induction motor as described in . (3) The device for generating the second pulse voltage is arranged opposite to both ends of the second iron core, and includes a permanent magnet that rotates according to the rotation of the rotor of the induction motor, and the second pulse voltage. and the output coil wound around an iron core of the invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP65085U JPS61117579U (en) | 1985-01-08 | 1985-01-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP65085U JPS61117579U (en) | 1985-01-08 | 1985-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61117579U true JPS61117579U (en) | 1986-07-24 |
Family
ID=30472682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP65085U Pending JPS61117579U (en) | 1985-01-08 | 1985-01-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61117579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1062274A (en) * | 1996-05-24 | 1998-03-06 | Skf Gmbh | Method and apparatus for measuring driven torque |
-
1985
- 1985-01-08 JP JP65085U patent/JPS61117579U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1062274A (en) * | 1996-05-24 | 1998-03-06 | Skf Gmbh | Method and apparatus for measuring driven torque |
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