| 摘要 |
<p>The present invention is an electronic system which can select high-precision positions by an electronic code disk position selecting device. The device includes an active spindle (1), a code disk (2), a circuit board (4), photoelectric coupling tubes (3) formed on the circuit board, a circuit board support (5), a bolt (6) for fixing the code disk and the active spindle, and a bolt (7) for fixing the circuit board support, wherein graduation slots are formed on the mechanical code disk, an electronic unit is formed on the circuit board for collecting position signals and controlling the code disk, and the photoelectric coupling tubes receive the information at different graduation slots of the rotating mechanical code disk to determine each of the collected positions. Optical signals collected by the photoelectric coupling tubes are converted into electric signals directly, and then input to a programmable controller for deciding which position is to be selected in association with a predefined code. Thus, the obtained data are the accurate position data at any time. The present invention is an electronic high-precision code disk position selecting device, with a lower cost, precise position selecting and a longer service life, and can be used for selecting the circumferential positions of a multi-port valve and a multi-turn valve.</p> |
