Variable scale readout for multi-meter use

Details Variable scale readout for multi-meter use Variable scale readout for multi-meter use

1978-10-02

1980-07-15

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural ranges, scales or registration rates

116292, 116318, G01R 1508

Patent

active

042130891

ABSTRACT:
This invention provides an apparatus for adjusting the scale and range of D'Arsonval pointer-type meters providing an uncluttered accurate readout particularly adapted for compact hand-held meters. Display wheels imprinted with numerals for a plurality of different scales are provided enabling the user to set, by manual rotation of a drive gear engaging a ring gear one of a plurality of desired ranges. The invention also provides for the simultaneous automatic selection or interconnection of circuit elements for driving the meter movement in accordance with the selected range.

REFERENCES:
patent: 2004724 (1935-06-01), Herzog
patent: 2466558 (1949-04-01), Sadlon
patent: 2558276 (1951-06-01), Simpson et al.
patent: 3092072 (1963-06-01), Strimel
patent: 3434453 (1969-03-01), Felgner
patent: 3829775 (1974-08-01), Brock
patent: 3895291 (1975-07-01), Friend
patent: 3978404 (1976-08-01), Friend

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