Gauge with magnetically fixed rest position

Details Gauge with magnetically fixed rest position Gauge with magnetically fixed rest position

1994-01-27

1995-10-31

Noland, Thomas P.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With electromagnetic field

G01R 3500, G01R 138, G01D 1108

Patent

active

054633141

ABSTRACT:
An air core gauge for an instrument cluster includes a permanent magnet armature and field coils energized according to an input parameter determine the position of the armature and a pointer connected to the armature. Terminal pins outboard of the armature carry energizing current to the coils. One of the terminal pins is made of ferrous material to magnetically attract the armature to a rest position when energizing current is off.

REFERENCES:
patent: Re28297 (1975-01-01), Void
patent: Re32604 (1988-02-01), Reenstra
patent: 2350741 (1944-06-01), Ford
patent: 2358910 (1944-09-01), De Giers
patent: 2747045 (1956-05-01), Parmer
patent: 2817816 (1957-12-01), Medlar
patent: 3636447 (1972-01-01), Gelenius
patent: 3961244 (1976-06-01), Minchom
patent: 4724601 (1988-02-01), MacManus et al.
patent: 4727279 (1988-02-01), Peng
patent: 5323639 (1994-06-01), Komurasaki et al.

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