Patent ID: 11933708
Assignee: TSI GROUP CO. LTD.
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 23:
24. A method comprising:
aerosolizing, by an atomizer having a liquid intake port, a gas intake port and an orifice, a liquid received at the liquid intake port;
separating, by a virtual impactor having an inlet coupled to the atomizer and having a first output port and a second output port, droplets such that droplets smaller than a selected size cut point of the virtual impactor are directed to the first output port and those droplets larger than the selected size cut point of the virtual impactor are directed to the second output port;
evaporating, by an evaporator coupled to the first output port, the droplets from the first output port;
counting, by a particle counter coupled to the first output port downstream of the evaporator, particles in the droplets from the first output port larger than at least one particle size cut point determined by the settings of at least one particle counter growth tube;
collecting, at a discharge reservoir coupled to the second output port, droplets from the second output port; and
receiving different portions of the particles from the droplets from the first output port at multiple input growth tubes within the particle counter, the multiple input growth tubes configured for different particle size cut points and each having its own dedicated counter.