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:
Dec. 06, 2005
Filed:
Nov. 25, 2002
Method and apparatus for determining the non-volatile component of aerosol particles in a gas sample
Peter W. Krempl, Kainbach bei Graz, AT;
Christian Reiter, Graz, AT;
Wolfgang Schindler, Graz, AT;
Wolfgang Singer, Eisbach/Rein, AT;
Peter W. Krempl, Kainbach bei Graz, AT;
Christian Reiter, Graz, AT;
Wolfgang Schindler, Graz, AT;
Wolfgang Singer, Eisbach/Rein, AT;
AVL List GmbH, Graz, AT;
Abstract
The invention relates to a method for determining the non-volatile component of aerosol particles in a gas sample, especially in the exhaust gas of internal combustion engines, where the aerosol particles are deposited on an oscillating sensor () of at least one crystal microbalance (), and the change in at least one oscillation parameter of the oscillating sensor is employed as measurement variable. According to the invention the oscillating sensor () of at least one crystal microbalance () is maintained at a temperature of more than 200° C. during deposition of the aerosol particles, and preferably between 250° C. and 350° C.