Patent ID: 11881752
Assignee: ZHEJIANG UNIVERSITY ADVANCED ELECTRICAL EQUIPMENT INNOVATION CENTER
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 6:
7. The direct-drive type annular flexible transportation system according to claim 1, wherein:
the primary excitation type linear motor further comprises a position detection module, the position detection module comprises a passive magnetic grid ruler and a signal readhead, the passive magnetic grid ruler is arranged in the annular direction of the annular base, arranged parallel to the arrangement direction of the long stator, and fixedly connected to the annular side surface of the annular base, the signal readhead is fixedly installed together with the movers, the signal readhead is located on a side of the passive magnetic grid ruler, and the signal readhead is matched with the passive magnetic grid ruler for position detection.