| 摘要 |
The movable core member magnetically coupled to the inductance coil of a variable inductor element is adapted for operation by a monitored displaceable member. Circuitry is provided for effecting a series of inductance coil charge and discharge cycles at a rate determined by the inductance value of the inductance coil as established by the position of the movable core member. Included in this circuitry is a circuit element of the type having two operating conditions which, in one operating condition, is effective to control switching circuitry to establish an inductance coil charge cycle; is switched, when the inductance coil charge current has reached a predetermined level, to the other operating condition in which it is effective to control the switching circuitry to establish an inductance coil discharge cycle and is switched, when the inductance coil discharge current has reduced to a predetermined level, to the original operating condition to initiate another inductance coil charge cycle. The system output signal is taken from the output circuit of this device while it is in a selected one of its conditions of operation.
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