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:
Jul. 19, 2016
Filed:
Mar. 05, 2014
Applicant:
Rosemount Tank Radar Ab, Gothenburg, SE;
Inventors:
Assignee:
ROSEMOUNT TANK RADAR AB, Gothenburg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 23/284 (2006.01); G01S 13/08 (2006.01); G01S 13/88 (2006.01); G01S 7/00 (2006.01); G01S 7/02 (2006.01); G01S 7/03 (2006.01); G01S 7/35 (2006.01); G01S 13/34 (2006.01);
U.S. Cl.
CPC ...
G01F 23/284 (2013.01); G01S 7/003 (2013.01); G01S 7/02 (2013.01); G01S 7/032 (2013.01); G01S 7/35 (2013.01); G01S 13/08 (2013.01); G01S 13/343 (2013.01); G01S 13/88 (2013.01); G01S 2007/028 (2013.01);
Abstract
The present invention relates to a radar level gauge system comprising a signal propagation device; a microwave signal source; a microwave signal source controller; a mixer configured to combine a transmit signal from the microwave signal source and a reflection signal from the surface to form an intermediate frequency signal; and processing circuitry coupled to the mixer and configured to determine the filling level based on the intermediate frequency signal. The microwave signal source is configured to exhibit a phase noise greater than or equal to −70 dBc/Hz @ 100 kHz offset from a carrier frequency for the transmit signal.