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. 13, 2018
Filed:
Jan. 22, 2014
Shanghai Micro Electronics Equipment Co., Ltd., Shanghai, CN;
Lin Zhang, Shanghai, CN;
Xiaowen Zhang, Shanghai, CN;
Lin Guo, Shanghai, CN;
Jun Chen, Shanghai, CN;
Zhigang Zhang, Shanghai, CN;
Shanghai Micro Electronics Equipment (Group) Co., Ltd., Shanghai, CN;
Abstract
A magnetic alignment system is disclosed, including a magnet array (), a motor rotor (), a fixed tooling () and a force sensor (). The motor rotor () is disposed over the magnet array () and is connected via the force sensor () to the fixed tooling () that is positionally fixed relative to the magnet array (). By varying an angle of a three-phase current supplied to a specific one of three-phase coil assemblies in the motor rotor () within an angular range for magnetic alignment and measuring a force generated by the specific one of three-phase coil assemblies using the force sensor (), an angle of magnetic alignment for the specific one of three-phase coil assemblies is determinable based on the angle of three-phase current that causes the specific one of three-phase coil assemblies to generate a maximum force.