Measuring device for capacitive determination of the relative po

Details Measuring device for capacitive determination of the relative po Measuring device for capacitive determination of the relative po

1986-12-12

1988-05-10

Caldwell, Sr., John W.

Communications: electrical

Continuously variable indicating

With particular transmitter

34087001, 340562, 340347P, 324 60C, G08C 1910

Patent

active

047439025

ABSTRACT:
A system for measuring the relative movement of one object with respect to another, such as the movement of a slide with respect to a scale of a measuring instrument utilizes the capacitative effect of a series of electrodes associated with a slide and another series of electrodes associated with the cooperating scale, the changes in capacity caused by relative movement between the two members being analyzed by an electronic circuit.

REFERENCES:
patent: 3068457 (1962-12-01), Nevius
patent: 3125716 (1964-03-01), Machlis
patent: 3198937 (1965-08-01), Wooster
patent: 3702467 (1972-11-01), Melnyk
patent: 3723866 (1973-03-01), Michaud et al.
patent: 3857092 (1974-12-01), Meyer
patent: 3873916 (1975-03-01), Sterki
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patent: 3961318 (1976-06-01), Farrand
patent: 4092579 (1978-05-01), Weit
patent: 4182981 (1980-01-01), Shum

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