| 摘要 |
<p>The controller supplies the heater(s) with current in response to a temperature sensor in the heated space, connected in a bridge in the controller. A number of signal amplitude sensitive control circuits are allocated to the controller and are connected in the bridge. Depending on the signal amplitude they simulate a temperature rise in the heated space by changing the bridge balance pref. by insertion of a resistor in one of the bridge arms. The control circuits are connected to a programming device which applies specified amplitude signals, in order to simulate a required temperature rise.</p> |
