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:
Aug. 04, 2015
Filed:
May. 31, 2012
Applicant:
Christian Kopp, Planegg, DE;
Inventor:
Christian Kopp, Planegg, DE;
Assignee:
Océ Printing Systems GmbH, Poing, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 29/036 (2006.01); G01N 29/032 (2006.01); G03G 15/10 (2006.01);
U.S. Cl.
CPC ...
G01N 29/032 (2013.01); G01N 29/036 (2013.01); G01N 2291/02416 (2013.01); G01N 2291/02809 (2013.01); G03G 15/105 (2013.01);
Abstract
In a method to determine particle mass concentration in a dispersion having particles and fluid, the dispersion in a measurement cell is exposed to an alternating field of variable frequency to set the particles into oscillation to generate sound pressure waves. Amplitudes of the sound pressure waves are measured depending on the frequency so that a maximum amplitude of the sound pressure waves is established and a frequency associated with the amplitude is determined as a resonance frequency of the sound pressure wave. The mass concentration of the particles in the dispersion is established from the resonance frequency.