Variable color digital multimeter

Details Variable color digital multimeter Variable color digital multimeter

1994-01-27

1995-12-12

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural ranges, scales or registration rates

324 96, G01R 1508

Patent

active

054753007

ABSTRACT:
A measuring instrument comprises a DC section for processing DC signals, an AC section for processing AC signals, and an OHMS sections for performing resistance measurements. A first switch is provided for selectively activating one of the three measurement sections. The measured value of the signal is digitally exhibited in a color which is controlled by a second switch in accordance with the measurement section selected.

REFERENCES:
patent: 2643344 (1953-06-01), McLaren et al.
patent: 2648015 (1953-08-01), Greenfield et al.
patent: 2682000 (1954-06-01), Clayton et al.
patent: 3924227 (1975-12-01), Stolov
patent: 4438498 (1984-03-01), Sekel et al.
patent: 4758828 (1988-07-01), Mitsumori

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