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:
Jun. 16, 2015
Filed:
Aug. 01, 2011
Applicants:
Bruce D. Rovner, Minneapolis, MN (US);
Scot R. Foss, Eden Prairie, MN (US);
Inventors:
Bruce D. Rovner, Minneapolis, MN (US);
Scot R. Foss, Eden Prairie, MN (US);
Assignee:
Rosemount Inc., Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/12 (2006.01); G01F 1/72 (2006.01); G01F 1/60 (2006.01);
U.S. Cl.
CPC ...
G01F 1/72 (2013.01); G01F 1/60 (2013.01);
Abstract
A process variable transmitter includes a sensor drive controller that outputs a sensor drive signal that is used to drive a sensor that senses a process variable. The sensor drive controller changes the frequency of the sensor drive signal to avoid frequencies and associated harmonics at which noise occurs and which could interfere with the sensor signal.