| 摘要 |
Sensor coils (L1-L5,L1'-L5') attach to a printed circuit board (3) in a planar manner. A conductive activating element (CAE) (7) i.e. a forked metal plate fits with a clearance (a) at either side above the sensor coils on a track. An electric evaluatory circuit detects inductance changes in the sensor coils corresponding to the CAE's track position. |
