Timed drift compensation for rate volume monitor
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United States of America Patent
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Aug 23, 1988
Grant Date -
N/A
app pub date -
Jul 27, 1987
filing date -
Jul 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drift compensating circuit cooperates with an air-pressure-to voltage transducer. The first input of a comparison circuit is connected to the transducer, while a reference voltage is connected to the second input. The reference voltage is provided by an up/down counter and a digital to analog converter. The comparison circuit has an output connected to the up/down counter to cause the counter to count up or down. The counter is enabled at predetermined intervals.
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