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:
May. 31, 2016
Filed:
Dec. 15, 2011
Günter Spahlinger, Stutgart, DE;
Markus Ruf, Waldkirch, DE;
Günter Spahlinger, Stutgart, DE;
Markus Ruf, Waldkirch, DE;
Northrop Grumman Litef GmbH, , DE;
Abstract
A controller unit includes a PI-controller for harmonic command variables. The transfer function of the PI-controller has a conjugate complex pole at a controller angular frequency ωin the s-plane or a pole at ein the z-plane, wherein T is the sampling time of a discrete input signal of the PI-controller and ωis larger than 0. The controller angular frequency ωis chosen equal to the resonance angular frequency ωof an oscillator. The controller parameters, are, for example determined by pole/zero compensation. The controller unit allows, for example, a broad band control of harmonic oscillators in rotation rate sensors.