Instrument with crossed-coil type movable magnet

Details Instrument with crossed-coil type movable magnet Instrument with crossed-coil type movable magnet

1988-06-28

1989-12-26

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural inputs

324166, 324140R, 341131, 341117, G01R 506

Patent

active

048900575

ABSTRACT:
An instrument with cross-coil type movable magnet which performs desired indication by A-D converting in accordance with the state of an object under measurement and applying to the crossed coils the current corresponding to a digital value after A-D conversion, comprising an A-D converter to which an input signal corresponding to the state of the object under measurement is sent after overlapping with a dithering ripple, thereby enabling improvement in the resolution of pointer indication.

REFERENCES:
patent: 3636447 (1972-01-01), Gelenius
patent: 3976869 (1976-08-01), Stella
patent: 3999129 (1976-12-01), Kasson
patent: 4144577 (1979-03-01), Ley
patent: 4160245 (1979-07-01), Scott
patent: 4183016 (1980-01-01), Sawagata
patent: 4230984 (1980-10-01), Taylor
patent: 4594575 (1986-06-01), Avery
patent: 4725814 (1988-02-01), Pohl
patent: 4751496 (1988-06-01), Araki

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