The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2017
Filed:
Jun. 12, 2013
Applicant:
Tofwerk Ag, Thun, CH;
Inventor:
Richard Knochenmuss, Seftigen, CH;
Assignee:
TOFWERK AG, Thun, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); G01N 15/02 (2006.01); H01J 49/40 (2006.01); G01N 15/00 (2006.01);
U.S. Cl.
CPC ...
G01N 15/02 (2013.01); H01J 49/0031 (2013.01); H01J 49/40 (2013.01); G01N 2015/0026 (2013.01); G01N 2015/0046 (2013.01);
Abstract
A method and an apparatus for determining an aerosol particle size distribution that includes the steps of modulating an aerosol particle beam with an aerosol particle gate which is controlled by a modulation function for generating a modulated aerosol particle beam, guiding the modulated aerosol particle beam through a drifting region, measuring a signal of the modulated aerosol particle beam after the modulated aerosol particle beam has passed the drifting region and calculating a correlation of the modulation function and the signal in order to determine the size distribution of the aerosol particles.