Lucas Industries Public Limited Company

Peter L Anthony

Ian J Harvey

A transducer means for sensing the movement of a component between first and second extreme positions includes a transducer 18 the output of which is applied to one input terminal of a differential amplifier. The output of the amplifier is applied to one input of a comparator at the output of which appears the output signal. The other input of the comparator is a voltage obtained from a resistor chain connected to the outputs of first and second sample and hold circuits the first of which is connected to the output of the differential amplifier and the second of which is connected to a peak hold circuit. The other input of the differential amplifier is connected to an integrator which integrates the signal provided by the first sample and hold circuit.

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Witney, United Kingdom

Peter L Anthony