Circuit arrangement for air quality measurement with logarithmic signal evaluation
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United States of America Patent
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Sep 15, 1998
Grant Date -
N/A
app pub date -
Jul 29, 1996
filing date -
Jul 27, 1995
priority date (Note) -
Expired
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Abstract
A circuit arrangement for air quality measuring having at least one sensor element which has resistors the resistance of which changes depending on the air composition. The circuit arrangement has an evaluation circuit for the sensor signals and includes a logarithmic circuit.
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