FIELD: measurement equipment.
SUBSTANCE: in a device for determination of a reciprocal movement, comprising a source of radiation and a receiver, they introduced a meter of amplitude-frequency characteristics, elements of input and output of electromagnetic oscillations, the sensitive element is made in the form of an open resonator with a concave metal plate and a flat metal plate equipped with a metal tube, besides, the outlet of the source of radiation is connected to the element of input of electromagnetic oscillations, the element of output of electromagnetic oscillations via the receiver is connected to the meter of amplitude-frequency characteristics.
EFFECT: higher accuracy of measurement.
1 dwg
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