| 摘要 |
<p>An appliance controller includes a control knob assembly and detection mechanism having various mechanical and electrical components that are configured to detect the position of the knob assembly and produce a position signal indicative of the knob assembly position. The position signal is provided to the appliance controller that produces a control signal in response thereto. The control signal is used to initiate various appliance functions based on the specific position of the knob assembly. In one form, the detection mechanism includes a variable resistor assembly that is comprised of a wiper and resistor pad arrangement. In another form, the detection mechanism includes a shaft encoder mechanism that is comprised of a light transmitter and receiver, and an associated apertured disc secured to the knob assembly.</p> |
