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:
Feb. 05, 2013
Filed:
Dec. 22, 2009
Steffen Laabs, Jena, DE;
Bernd Donath, Jena, DE;
Andreas Pruvost, Bretleben, DE;
Matthias Nowak, Jena, DE;
Mario Fischer, Saalfelder Hohe, DE;
Steffen Laabs, Jena, DE;
Bernd Donath, Jena, DE;
Andreas Pruvost, Bretleben, DE;
Matthias Nowak, Jena, DE;
Mario Fischer, Saalfelder Hohe, DE;
Trimble Jena GmbH, Jena, DE;
Abstract
A motor drive apparatus for a surveying instrument and a control method for controlling a surveying instrument enables a fast rotation of an instrument axis with high angular resolution. The motor drive apparatus for a surveying instrument includes a first motor for rotating an instrument axis. The first motor includes a stator and a rotor having a rotation axis and a plurality of step positions relative to the stator. The motor drive apparatus also includes a mounting unit for mounting the first motor so as to be pivotable around the rotation axis and an adjusting unit for rotating the stator of the first motor around the rotation axis.