Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1988-06-21
1990-08-14
Shoop, Jr., William M.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
324431, 340636, G01N 2746
Patent
active
049490460
ABSTRACT:
A device for indicating changes in the state of charge of a rechargeable battery including a current sensor to sense current flow into and out of the battery and to provide an output indicative of both the magnitude and direction of the current flow, a timer to provide a timing signal, and a computer programmed to compute from the output of the current sensor and the timer, a signal representative of the charge dissipated from or accumulated in the battery over a period of time. Preferably the device includes data storage to store an indicatioin of the state of charge of the battery and the computer is programmed to use the signal to update the stored data to provide an indication of the current state of charge of the battery.
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Lerner, S. et al., "Development of an Alkaline Battery State of Charge Indicator," Power Sources 3, Collins (Ed.), Oriel Press, 1970, pp. 135-138.
British Aerospace Public Limited Company
Shoop Jr. William M.
Wysocki A. Jonathan
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