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:
Apr. 30, 1991
Filed:
May. 26, 1989
Mark A Rosswurm, Columbus, IN (US);
Cummins Electronics Company, Inc., Columbus, IN (US);
Abstract
An improved electrostatic angle resolver is disclosed which eliminates capacitive coupling surfaces from rotor and stator device components of the invention, thus reducing over all space necessary for the resolver. Additionally, the concept disclosed also eliminates the need for rotor guarding techniques to prevent signal loss due to stray and parasitic capacitances. Essentially, current required to maintain capacitor plates at a particular voltage is monitored, and the variations in the current are transformed into voltages, and supplied to an amplifier which, in turn, provides isolation between the sensor, and associated angular decoding circuitry.