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:
Oct. 10, 2006
Filed:
Oct. 28, 2002
Jason Neely, Albuquerque, NM (US);
Steven D. Pekarek, Salem, MO (US);
Jason M. Banaskavich, Manchester, MO (US);
Daniel S. Stutts, Rolla, MO (US);
Jason Neely, Albuquerque, NM (US);
Steven D. Pekarek, Salem, MO (US);
Jason M. Banaskavich, Manchester, MO (US);
Daniel S. Stutts, Rolla, MO (US);
The Curators of the University of Missouri, Columbia, MO (US);
Abstract
A torque ripple sensor and method for torque ripple sensing and/or mitigation. A piezoelectric sensor is positioned relative to a motor so that torque fluctuations due to torque ripple of the motor are transmitted to the sensor, resulting in strain of a piezoelectric element. A resulting signal can be amplified and conditioned for determining a magnitude of the torque ripple and/or fed into a feedback loop for applying current control or a counter-torque to the motor for torque ripple mitigation.