FIELD: physics; control.
SUBSTANCE: in the field of production processes automation. Sensor includes serially connected generator of electric vibrations with inductive sensitive element in the form of induction coil installed in annular groove of ferrite core open end with central opening, the first threshold element, serially connected multivibrator with capacitance sensitive element installed inside central opening of ferrite core coaxially with this opening, detector, the second threshold element, and also logical element AND, the first and second inlets of which are connected to outlets of the first and second threshold elements accordingly, and its outlet is sensor outlet. At that inductive and capacitance sensitive elements form sensitive element of sensor.
EFFECT: expansion of functional resources and higher reliability of sensor operation.
4 dwg
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