Patent · US Active

Method and apparatus for determining a concentration of aerosol particles in a carrier gas

US11474019B2 · kind B2 · utility

0Cited by

1References

12Claims

0Family size

Assignee

KARLSRUHER INSTITUT FÜR TECHNOLOGIE · DE

Inventors

Ottmar Moehler · Karlsruhe, DE
Benjamin Murray · Portland, US
Michael Adams · Phoenix, US

Key dates

Filing date	Jun 21, 2019
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Mar 31, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01N2015/0046
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and apparatus for determining a concentration of aerosol particles in a carrier gas. The method comprises providing an aerosol having aerosol particles in a carrier gas comprising at least one condensable component; introducing at least part of the aerosol into a chamber of a pressure-rated vessel, wherein the chamber is delimited by at least one wall adjoining the chamber and set to a temperature which is above a saturation temperature of the at least one condensable component; subsequently removing part of the aerosol from the chamber, as a result of which a decrease in pressure in the chamber occurs, as a result of which the at least one condensable component condenses at least partly on the aerosol particles; and determining a concentration of aerosol particles in the carrier gas during removal of the part of the aerosol from the chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.