| 摘要 |
An encoder device comprising an encoding means (10) and a detector (20,40) which are movable relative to one another, the detector (20,40) being adapted to generate at least one pulse signal (Adi) whose amplitude changes with relative positional changes; the encoder further comprising: a load sensor (42; 180) having an input coupled to receive the at least one pulse signal, and an output for delivering an output signal (Ado); wherein the encoder device comprises means for indicating when the sensed load exceeds a threshold level. <IMAGE> |
