Patent ID: 11879824
Assignee: TSI GROUP CO. LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 31:
32. A system to determine false-particle counts in a condensation particle counter (CPC), the system comprising:
at least one aerosol sample inlet configured to be coupled to a sample flow pump;
an aerosol flow path in fluid communication with and disposed between the aerosol sample inlet and the sample flow pump;
at least three wicks each comprising a porous media forming at least a portion of the aerosol flow path;
at least three optical particle detectors, one of the at least three optical particle detectors coupled to a respective outlet of one of each of the at least three wicks to measure counts within the respective outlet of one of the at least three wicks, the system being configured to compare a count from one of the at least three wicks with a count of remaining ones of the at least three wicks; and
a processor coupled to each of the at least three optical particle detectors to compare a count from one of the at least three wicks with a count of remaining ones of the at least three wicks to make a determination whether the count from the one of the at least three wicks is statistically greater than the counts of the remaining ones of the at least three wicks, the statistically greater count being considered to be a false count.