| 摘要 |
<p>An electronic safety controls system comprising an elongate, flexible electrically-conductive sensing element (18, 20) and electronic control means. The electronic control means are responsive to a change in capacitance arising from the close proximity to the element (18, 20) of an object, to provide an output signal for controlling a powered device (14). Thus, where the powered device (14) is used to displace a part (10) of a mechanism (8) towards another (12), the sensing element (18, 20) may be fitted to one or other or both of the approaching surfaces of the two parts (10, 12) to prevent an object from becoming trapped therebetween.</p> |
