| 摘要 |
PURPOSE: A temperature compensation apparatus is provided to reduce operational errors due to a temperature increase of a proportional flow control valve, thereby accurately operating the proportional flow control value. CONSTITUTION: A temperature sensor(20) measures the temperature of a valve coil of a proportional flow control valve(10). A temperature compensation part(30) supplies current to the proportional flow control valve by compensating current loss. The temperature compensation part comprises a controller(31), a current input part(32), and a storage part. The controller receives the temperature of the valve coil. The controller creates a current compensation signal. The current input part supplies current to the proportional flow control valve by compensating the current. The storage part creates a table which includes current loss information according to the temperature of the valve coil. |
