Instrument with crossed-coil type movable magnet

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

1987-07-23

1989-05-02

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural active motor elements

324167, 324115, G01R 1130, G01P 348

Patent

active

048272094

ABSTRACT:
An instrument has a crossed-coil-type movable magnet in which a movable magnet rotatable about the shaft of a pointer needle is installed in a crossed coil unit and a measured quantity or the like is operated by supplying electric power to the crossed coil unit. The instrument includes an input unit to receive an input from a measurement object to be measured, an arithmetic section or ROM to set directions and time values for supplying electric current to the coils of the crossed coil unit, and a circuit section to deliver pulse signals with predetermined potential values to the crossed coils under conditions associated with the directions and time values, to provide a very broad angular range of the pointer needle.

REFERENCES:
patent: 4230984 (1980-10-01), Taylor

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