Air filter having a moisture sensor for identifying type of filter and moisture content and method of using filter in a vehicle air conditioning system
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United States of America Patent
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Sep 24, 2013
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N/A
app pub date -
Feb 16, 2010
filing date -
May 8, 2008
priority date (Note) -
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Abstract
An air filter, which is intended for installation in an air conditioning system of a vehicle and which exhibits a moisture sensor, is disposed on or at the air filter. The moisture sensor is a component of an electric circuit section, which is arranged on or at the air filter. The moisture sensor is a capacitive sensor, whose capacitance depends on the moisture loading of the air, flowing around the sensor. At least one electric property of the electric circuit section represents the moisture loading on the air filter and the type of air filter.
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