| 摘要 |
A precisive temperature controller for a magnetic field-free heating cable is provided to control a temperature precisely in a wide range by compensating for a specified heating current value in consideration of a power voltage change width. A precisive temperature controller for a magnetic field-free heating cable includes a power voltage change detection part(700), a current detection part(600), and a controller. The power voltage change detection part is connected with an electromagnetic wave-free heating wire and detects a voltage value of inputted power. The current detection part detects a heating current value induced to a heating element. The controller includes a compensation part and a comparison part. The compensation part compensates a previously set value according to a change value of the voltage detected in the power voltage change detection part. The comparison part compares the heating current value detected in the current detection part with the compensated value. |
