公开(公告)号：US11408752B2

公开(公告)日：2022-08-09

申请号：US16613887

申请日：2018-05-15

申请人： Hengstler GmbH

发明人： Martin Linden ,  Kai Klaeger ,  Thorsten Blust

IPC分类号： G01D5/14 ,  F16H55/06 ,  G01B11/26

摘要： The invention relates to a multi-turn angle measurement device for measuring multiple revolutions of a shaft (4), consisting of a first code carrier (31) with an optical single-turn scanning function (34) for detecting the absolute position of the shaft and a second code carrier for measuring the number of revolutions of the shaft (4). A reduction gear (2) is arranged between the first code carrier (31) and the second code carrier, and the second code carrier consists of a number of permanent magnets (22), the position of which is detected by an assembly of Hall sensors (16a-16b) fixed to the housing. Each of the permanent magnets (22) is embedded into the plastic material of the transmission gears (20) of the reduction gear (2).