Control device and method for evaluating a control device

Details Control device and method for evaluating a control device Control device and method for evaluating a control device

2011-01-11

2011-01-11

Paschall, Mark H (Department: 3742)

Electric heating

Heating devices

With power supply and voltage or current regulation or...

C219S494000, C219S504000, C219S491000, C219S446100, C219S443100

Reexamination Certificate

active

07868271

ABSTRACT:
A control device for converting a control movement along a control path into a control signal has the control path corresponding to different control stages or control types. The control device has two measuring tracks with a linearly changing resistance associated with each track. In one embodiment, these measuring tracks are positioned concentric to each other in a semicircle. A voltage U, which is tapped via two opposite interconnected sliders, is applied to both measuring tracks at a junction point while the other junction point is connected to ground. If the detected values of the tapped voltages deviate from a corresponding stored value or pairs of values, there must be a fault, due to, for example a broken slider. This makes it possible to perform a test for determining the fault or a malfunctioning control device.

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