CPC B65H 43/08 (2013.01) [B65H 7/14 (2013.01); G06F 3/1279 (2013.01); B65H 2553/412 (2013.01); G03G 2215/00616 (2013.01)] | 13 Claims |
1. A sensor control apparatus, comprising:
a control unit; and
a plurality of sensors connected in series to the control unit,
each of the plurality of sensors including:
a detector configured to perform a detection operation based on a first voltage applied from the control unit;
a first switch provided on an application path for applying a voltage, which extends from the control unit to the detector;
a second switch provided on a supply path for supplying the voltage applied from the control unit to a sensor connected in a subsequent stage; and
a conduction control unit configured to:
bring the first switch into conduction and cut off the second switch in a case where the voltage on the application path is the first voltage; and
cut off the first switch and bring the second switch into conduction in a case where the voltage on the application path is a second voltage, which is different from the first voltage,
wherein the control unit is configured to cause a sensor in a first stage to perform the detection operation by applying the first voltage to the sensor in the first stage, and then cause a sensor in a second stage to perform the detection operation by applying the second voltage and then applying the first voltage.
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