Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1980-07-14
1981-07-21
Caldwell, Sr., John W.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
320 48, G01N 2702
Patent
active
042800978
ABSTRACT:
Apparatus for electrically isolating a DC voltage source while the voltage f the source is being measured or otherwise monitored. An electronic switch is provided for selectively coupling the apparatus to the source, and a first optical device coupled to the switch receives a control signal which directs switch operation. The first optical device electrically isolates the switch from electrical equipment which generates the control signal. A device for generating an internal voltage data signal is also coupled to the switch, the frequency of such signal varying according to the voltage of the source. A second optical device receives the internal data signal, and couples an external data signal to voltage monitoring equipment, the external data signal having a frequency which varies according to the frequency of the internal data signal, the second optical device electrically isolating the switch from the voltage monitoring equipment.
REFERENCES:
patent: 3086170 (1963-04-01), Kemelhor et al.
patent: 3346811 (1967-10-01), Perry et al.
patent: 3461384 (1969-08-01), Bayati et al.
patent: 3546576 (1970-12-01), Frezzolini
patent: 3786343 (1974-01-01), Ehlers
patent: 3872457 (1975-03-01), Ray et al.
patent: 3895284 (1975-07-01), Schweizer et al.
patent: 4017224 (1977-04-01), Finger
patent: 4024415 (1977-05-01), Matsuura
patent: 4052717 (1977-10-01), Arnold et al.
patent: 4118661 (1978-10-01), Siekierski et al.
Carey Richard L.
McGuffey Gale W.
Caldwell Sr. John W.
Johnston Ervin F.
Myer Daniel
Sciascia Richard S.
Skarsten James O.
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