摘要: A sensor (10,30) may be used to measure mass concentrations and/or size distributions of particulate matter in exhaust emission a combustion engine (22). In some embodiments, include cylinder section (16,32) that coupled an conduit (24) the light source (34) and one or more photodetectors (36) perimeter (32). (10) signal electrode (12) detector (14) at least partially enclosed body. Mass distribution continuously measured. Operating parameters (22) adjusted based on measurements distributions.
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