Object displacement sensor and device for measuring the rotation

Details Object displacement sensor and device for measuring the rotation Object displacement sensor and device for measuring the rotation

1982-05-14

1984-11-13

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324166, 324168, 73579, 73613, G01R 2726

Patent

active

044828594

ABSTRACT:
An object displacement sensor specifically adapted for high speed counting of passing nonmagnetic objects is disclosed which has a resonant circuit made up of at least one inductive element 2 and a condensor whose one plate consists of a conductive surface 3 and whose other plate is successively formed by each object 4 passing close to this surface 3. The resonant circuit is connected to a first oscillator 6 which determines the functioning frequency such that the signal issued from the first oscillator 6 is modulated in frequency to the rhythm of the passage of the objects 4.

REFERENCES:
patent: 3205713 (1965-09-01), Thomas
patent: 3386031 (1968-05-01), Able et al.
patent: 3428889 (1969-02-01), Mayer
patent: 4021681 (1977-05-01), Miesterfeld

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