| 摘要 |
<p>The device has an evaluation circuit attached to a magnetic field sensor (S) at an output side and supplying an end position signal in an end position of a movable object. The circuit compares a signal in a given position of two objects relative to each other, with a stored actual value. The circuit produces a warning signal when the deviation of the measured magnetizing force from the actual value is larger than a given permissible limit value. The circuit supplies a reference signal for examination of a measuring device, when the deviation lies between actual value range and limit value.</p> |
