| 摘要 |
Proximity detection device including several Hall-effect detectors defining a code. According to the invention, a first part of the device contains several Hall-effect components H1, H2, H3 disposed at predetermined locations and with predetermined different orientations while the second part of the device contains several magnets A1, A2, A3 disposed and oriented so as to reproduce a code similar to that which is defined by the positions and orientations of the components, so that the latter are always activated simultaneously when the second part 12 occupies a predetermined position in the vicinity of the first part 11. Application to improving security (safety) in certain machines or installations. <IMAGE>
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