Humidity conditioning for water-based condensational growth of ultrafine particles
AssigneeAerosol Dynamics Inc.
InventorsSusanne Vera Hering, Arantzazu Eiguren Fernandez, Gregory Stephen Lewis, Steven Russel Spielman, Philip Bourgeois
Life of this patent
Estimating the term…
Abstract
A particle growth apparatus includes a temperature-controlled humidifier coupled to a water-based condensation growth system. The humidifier may include a tube of sulfonated tetrafluoroethylene-based fluoropolymer-copolymer and surrounded by a region containing water or water vapor. The apparatus includes a wetted wick and wick sensor in the condensation growth system, configured such that the gas sample flows through the sulfonated tetrafluoroethylene-based fluoropolymer-copolymer tube into the condensation growth system.
Claims8
An apparatus, comprising:
- a humidifier coupled to a water-based condensation growth system,
- the humidifier comprising a tube comprising sulfonated tetrafluoroethylene-based fluoropolymer-copolymer surrounded by a region containing wetted crystals of polyacrylate salt;
- wherein a gas sample flows through the sulfonated tetrafluoroethylene-based fluoropolymer-copolymer tube into the condensation growth system.
Dependencies are inferred from the claim text.