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. 12, 2005
Filed:
Nov. 20, 2003
Gerald E. Rains, Bettendorf, IA (US);
James J. Phelan, Bettendorf, IA (US);
Zachary W. Slavens, Bettendorf, IA (US);
Andrzej Kozicki, Milan, IL (US);
Robert C. Funk, Auburn, IL (US);
Gerald E. Rains, Bettendorf, IA (US);
James J. Phelan, Bettendorf, IA (US);
Zachary W. Slavens, Bettendorf, IA (US);
Andrzej Kozicki, Milan, IL (US);
Robert C. Funk, Auburn, IL (US);
Deere and Company, Moline, IL (US);
Abstract
A grain moisture sensor having a sensor cell that includes a driven plate, a sense plate proximate to and substantially parallel with the driven plate for capacitive measurement across a spacing between the driven plate and the sense plate, and a fill plate adjacent the sense plate and substantially parallel with the driven plate for sensing whether the spacing is filled with grain. The grain moisture sensor provides for measuring real and imaginary components of an excitation voltage applied to the driven plate, measuring real and imaginary components of a sense current sensed at the sense plate, calculating a complex admittance of the cell, calculating a complex admittance of a reference admittance, and calculating a grain complex permittivity.