| 摘要 |
Foil element for electric heating of objects having the resistance material placed between insulating plastic foils of e.g. PVC or polyester. The temperature should be controlled on the heated object within a given interval. The foil element therefor has a sensor circuit (3) of the same material as the resistance element (2) placed in the same foil but at a distance from the resistance element.
<??>The resistance of the sensor circuit varies with the temperature and this resistance value is used as temperature control. |
