METHOD AND ARRANGEMENT FOR DETECTING PARTICLES
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United States of America Patent
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Issued Date -
Aug 18, 2011
app pub date -
Feb 27, 2008
filing date -
Feb 27, 2008
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Abandoned
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Abstract
The present invention relates to a method for detecting particles and a particle sensor arrangement. More specifically, the present invention relates to a method and arrangement for detecting particles in a gas flow, e.g. from a diesel combustion engine. The method comprises the steps of; forcing a particle build up on a sensor element of a particle sensor arrangement by regulating the sensor element to a second temperature; wherein the second temperature is lower than a first temperature, the first temperature being the gas flow temperature. Additionally is the particle build up detected at the sensor element by means of a detector. The present invention provides for an accurate method and arrangement to detect and thereby measure particles present in a gas flow, e.g. from a combustion engine.
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