Gas flow meter
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United States of America Patent
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Oct 26, 2004
Grant Date -
Jan 2, 2003
app pub date -
Aug 30, 2001
filing date -
Apr 11, 2001
priority date (Note) -
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Abstract
A gas flow meter having a gas flow detection circuit for detecting a current flowing through a resistor installed in a gas passage and a voltage generated across the resistor and outputting a voltage signal representing a gas flow passing through the gas passage; a noise reduction circuit for reducing external noise; and a digital adjusting circuit for digitally adjusting a signal representing the detected gas flow and outputting the adjusted signal; wherein a voltage signal based on the signal adjusted by the digital adjusting circuit is output.
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