US 12,345,620 B2
Method and measurement device for determining a measurement variable of particles in an aerosol
Stefan Gerkens, Freiburg (DE)
Assigned to Opus Inspection, Inc., East Granby, CT (US)
Filed by Opus Inspection, Inc., East Granby, CT (US)
Filed on Oct. 6, 2022, as Appl. No. 17/961,159.
Application 17/961,159 is a continuation of application No. PCT/EP2021/053819, filed on Feb. 17, 2021.
Claims priority of application No. 102020109885.5 (DE), filed on Apr. 8, 2020.
Prior Publication US 2023/0152198 A1, May 18, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 15/02 (2024.01); G01N 15/06 (2024.01); G01N 15/00 (2006.01)
CPC G01N 15/06 (2013.01) [G01N 15/02 (2013.01); G01N 2015/0046 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for determining an indicator of particles in an aerosol, the method comprising the steps of:
feeding at least one sample of the aerosol through a replaceable probe to a measuring device of a measuring apparatus;
defining a characteristic particle size from a measured mean geometric particle diameter of the aerosol;
reading a characteristic particle loss of the replaceable probe corresponding to the characteristic particle size from a memory of the replaceable probe;
measuring a metric of the indicator;
calculating a particle loss from the metric and the characteristic particle loss; and
correcting the metric of the indicator as a function of the particle loss.