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:
Sep. 02, 2014
Filed:
Aug. 30, 2011
Applicants:
Veli-pekka Viitanen, Huhmari, FI;
Sami Virtanen, Espoo, FI;
Inventors:
Veli-Pekka Viitanen, Huhmari, FI;
Sami Virtanen, Espoo, FI;
Assignee:
Metso Automation Oy, Vantaa, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01R 33/383 (2006.01); G01N 24/08 (2006.01); G01R 33/44 (2006.01);
U.S. Cl.
CPC ...
G01R 33/448 (2013.01); G01R 33/383 (2013.01); G01N 24/08 (2013.01);
Abstract
The invention relates to a NMR method for determining moisture content of a sample, in which method a sample is subjected to a magnetic DC-field, the sample under magnetic DC-field is subjected to a sequence of excitation pulses in RF-frequency with pulse interval for exciting hydrogen nuclei, and NMR signal of the excited hydrogen nuclei is measured. In accordance with the invention spin-lattice relaxation time is estimated for the sample, and pulse interval is adjusted longer than the estimated spin-lattice relaxation time.