Tuning device with battery condition display

Details Tuning device with battery condition display Tuning device with battery condition display

1990-12-20

1992-08-25

Coles, Sr., Edward L.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324426, 340636, G01N 27416

Patent

active

051422336

ABSTRACT:
A tuning device provided with an A/D conversion circuit receiving a battery voltage as an input and an averaging circuit averaging values obtained through A/D conversion and converting it into display data for display of an averaged voltage value. Therefore, an operator can be informed of the current residual electric energy of a battery even when a reference sound is being produced, and thereby correct operation can be verified.

REFERENCES:
patent: 2514745 (1950-07-01), Dalzell
patent: 4014167 (1977-03-01), Hasegawa et al.
patent: 4991484 (1991-02-01), Kawashima
patent: 5027294 (1991-06-01), Fakruddin et al.

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