| 摘要 |
A sensor 10 for monitoring a characteristic of an object 12, for example, the position thereof. The sensor includes an electrode pair 14, 16 and a signal generator connected to pass a displacement current between the electrodes. Changes in the position or other monitored characteristic of the sensed object modify the displacement current and sensing of that current thus provides a electrical indication of the sensed changes. A multiple electrode-pair 14, 16a to 16f system (Fig. 2, not shown) can be used to monitor the position of an object with improved accuracy by sensing the displacement currents between multiple pairs of electrodes. <IMAGE> |
