Variable color analog voltmeter

Details Variable color analog voltmeter Variable color analog voltmeter

1986-12-24

1989-03-14

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural ranges, scales or registration rates

324 96, 340753, 340754, G01R 3100, G09G 320

Patent

active

048127442

ABSTRACT:
A voltmeter includes a variable color analog display for providing an analog indication of the value of a measured signal in a color in accordance with the relation of the measured value to predetermined limits.

REFERENCES:
patent: 3873979 (1975-03-01), Craford et al.
patent: 4399352 (1983-08-01), Ueda
patent: 4467323 (1984-08-01), Kling et al.
patent: 4570226 (1986-02-01), Aussedat
patent: 4617562 (1966-10-01), Klotz
patent: 4688029 (1987-08-01), Kawasaki et al.

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