| 摘要 |
An arrangement for monitoring a transducer, or detector, which produces an analogue or digital ouput signal corresponding to a state sensed by the transducer. The invention is characterised in that the transducer includes activatable and deactivatable elements (RB 3, 23) which are intended to influence the transducer in a manner to cause the transducer to produce a signal which deviates from the actual state detected by the transducer, and in that there is provided a control circuit (10) which is intended to activate and/or deactivate the elements in a predetermined sequence, in response to the signal produced by the transducer. The arrangement also includes a control device for detecting the transducer output signal and comparing changes in the ouput signal in dependence on the activation and/or deactivation of the elements (RB 3, 23). The control device is constructed to detect whether or not the function of the transducer is correct, on the basis of this comparison. |
