Switched capacitance automatic meter reading device
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United States of America Patent
Stats
-
Oct 27, 1992
Issued Date -
N/A
app pub date -
Feb 26, 1991
filing date -
Jan 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A humidity and temperature resistant apparatus for determining the orientation of a rotatable meter hand relative to a dial spaced apart from a meter hand that creates and depletes a charge between a center electrode, a meter hand, and an outer electrode ( a pad) very rapidly to transport electrons through a resistor capacitor combination, attached to a positive power supply, whereby the average current drawn through the resistor capacitor combination creates a voltage across the resistor capacitor combination that corresponds proportionally to the magnitude of the capacitance being measured.
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Family
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Cited Art Landscape
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