| 摘要 |
Control apparatus comprising at least one electrically-conductive target portion (12). A position sensor (14) in the form of a pulse induction device is arranged in proximity with the said at least one electrically-conductive portion (12) to provide a signal indicative of a position attribute of that portion. Relative movement is possible between the target portion (12) and a coil portion (14a of the position sensor (14). Control means (16) are connected to receive such a signal from the pulse induction device (14) and to respond in dependence upon that signal. The invention extends to such a position sensor (14) itsel f.
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