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:
Nov. 19, 2019
Filed:
Jun. 06, 2017
Lg Electronics Inc., Seoul, KR;
The Industry & Academic Cooperation IN Chungnam National University, Daejeon, KR;
Namsoo Lee, Seoul, KR;
Myounggyu Noh, Daejeon, KR;
Soyoon Kim, Seoul, KR;
Seongmin Jang, Seoul, KR;
Jinhee Jeong, Seoul, KR;
Seongki Baek, Seoul, KR;
Sunggyu Nam, Chilgok-gun, KR;
LG Electronics Inc., Seoul, KR;
The Industry & Academic Cooperation in Chungnam National University, Daejeon, KR;
Abstract
A method of measuring a center error between bearings includes disposing both sides of a rotation shaft on inner circumferential surfaces of a magnetic bearing and a backup bearing, applying current to the magnetic bearing to produce movement of the rotation shaft, determining a contact point between the rotation shaft and the backup bearing according to movement of the rotation shaft, determining a final target value using the contact point and predetermined position information of the magnetic bearing, determining a magnetic center of the magnetic bearing through the final target value, comparing the magnetic center of the magnetic bearing and a mechanical center of the backup bearing to determine a center error, and aligning the magnetic center of the magnetic bearing and the mechanical center of the backup bearing based on the determined center error.