| 摘要 |
<p>A detector unit for detecting the position and/or the state of movement of movable elements containing ferromagnetic material and relating especially to locking arrangements, said detector unit comprising a reed-relay (2) and permanent magnetic means (1). The reed-relay (2) is fixed to the permanent magnetic means (1) to a position, in which the magnetic flux provided by the permanent magnetic means (1) includes an essential deviation so that the reed-relay (2) is not normally switched on.</p> |
