JPS55125424A - Device for watching temperature of rotor of rotary electric machine - Google Patents
Device for watching temperature of rotor of rotary electric machineInfo
- Publication number
- JPS55125424A JPS55125424A JP3334079A JP3334079A JPS55125424A JP S55125424 A JPS55125424 A JP S55125424A JP 3334079 A JP3334079 A JP 3334079A JP 3334079 A JP3334079 A JP 3334079A JP S55125424 A JPS55125424 A JP S55125424A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- temperature
- voltage
- side winding
- bridge circuit
- 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
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
PURPOSE:To improve the accuracy of watching the temperature of a rotor and to prevent overheating and damage by burning of the same by providing a temperature measuring resistor and a bridge circuit for converting resistance variation based on the temperature fluctuation of the resistor, in the rotor, and using a rotary transformer for signal transmission. CONSTITUTION:With respect to a device 14 installed at the stationary side of a rotary electric machine, in a device 15 installed at the rotor side there are provided a temperature measuring resistor R1, a bridge circuit and an amplifier 23. When an AC voltage is applied to the stator side winding 17 of a source transmitting rotary transformer 16, a voltage is induced in a rotor side winding 18, and a voltage V is applied between connecting points 19 and 20 of the bridge circuit. When the resistance of the temperature measuring resistor R1 varies by the temperature fluctuation, a potential difference E between connecting pints 21 and 22 varies, and the potential difference E is amplified by the amplifier 23. This amplified voltage is applied to the rotor side winding 25 of a signal tansmitting rotary transformer 24, and a voltage is induced at a stator side winding 26, thus the temperature being displayed by a thermometer 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3334079A JPS55125424A (en) | 1979-03-23 | 1979-03-23 | Device for watching temperature of rotor of rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3334079A JPS55125424A (en) | 1979-03-23 | 1979-03-23 | Device for watching temperature of rotor of rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55125424A true JPS55125424A (en) | 1980-09-27 |
Family
ID=12383827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3334079A Pending JPS55125424A (en) | 1979-03-23 | 1979-03-23 | Device for watching temperature of rotor of rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55125424A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127432A (en) * | 1983-12-15 | 1985-07-08 | Ulvac Corp | Temperature measuring device of rotary body |
| JPS6138533A (en) * | 1984-07-31 | 1986-02-24 | Tokuden Kk | Temperature detector of body of rotation using rotary transformer |
| WO1990012354A2 (en) * | 1989-04-13 | 1990-10-18 | Stellar Communications Limited | Display |
| EP0778658A1 (en) * | 1995-12-05 | 1997-06-11 | Ugimag S.A. | Detector for asynchronous movement in a magnetic coupling |
| JP2002039088A (en) * | 2000-07-26 | 2002-02-06 | Seiko Instruments Inc | Device for body of revolution |
| GB2426329A (en) * | 2005-05-04 | 2006-11-22 | Smiths Group Plc | Thermal probe system |
| JP2015523840A (en) * | 2012-05-10 | 2015-08-13 | アクセス ビジネス グループ インターナショナル リミテッド ライアビリティ カンパニー | System and method for measuring variable impedance elements in wireless sensors |
-
1979
- 1979-03-23 JP JP3334079A patent/JPS55125424A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127432A (en) * | 1983-12-15 | 1985-07-08 | Ulvac Corp | Temperature measuring device of rotary body |
| JPS6138533A (en) * | 1984-07-31 | 1986-02-24 | Tokuden Kk | Temperature detector of body of rotation using rotary transformer |
| WO1990012354A2 (en) * | 1989-04-13 | 1990-10-18 | Stellar Communications Limited | Display |
| EP0778658A1 (en) * | 1995-12-05 | 1997-06-11 | Ugimag S.A. | Detector for asynchronous movement in a magnetic coupling |
| JP2002039088A (en) * | 2000-07-26 | 2002-02-06 | Seiko Instruments Inc | Device for body of revolution |
| GB2426329A (en) * | 2005-05-04 | 2006-11-22 | Smiths Group Plc | Thermal probe system |
| US7393136B2 (en) | 2005-05-04 | 2008-07-01 | Smiths Group Plc | Thermal probe systems |
| GB2426329B (en) * | 2005-05-04 | 2009-12-09 | Smiths Group Plc | Thermal probe systems |
| JP2015523840A (en) * | 2012-05-10 | 2015-08-13 | アクセス ビジネス グループ インターナショナル リミテッド ライアビリティ カンパニー | System and method for measuring variable impedance elements in wireless sensors |
| US10481189B2 (en) | 2012-05-10 | 2019-11-19 | Philips I.P. Ventures B.V. | System and method for measuring variable impedance elements in a wireless sensor |
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