Absolute position encoder

专利名称：Absolute position encoder发明人：Peter Kunow,Klaus Biester申请号：US10506221申请日：20030228公开号：US07091883B2公开日：20060815

专利附图：

摘要：A transducer, a method and a coding pattern for determining a kinematicmeasurable variable are disclosed. A transducer comprises a first device part which ismoveable in or through a corresponding device for oil or natural gas production and asecond device part which is stationary relative to said first device part. To detect both the

directions of movement and the respective position in a simple constructional andinexpensive way without the need for return movement up to ends of the range ofmovement, the first and/or second device part comprises a coding pattern which ischanging along a direction of movement and of which position-specific patterns can bescanned by a scanning means which is arranged on the respective other device part. Byscanning such a specific coding pattern during mutual relative movement of said objectsor device parts a corresponding scanning signal can then be converted by an evaluationunit into a kinematic measurable variable. The corresponding coding pattern comprises aplurality of single patterns wherein neighboring single patterns differ from one anotherby at least one characteristic feature and/or said single pattern has at least onecharacteristic feature that is changing in the direction of movement.

申请人：Peter Kunow,Klaus Biester

地址：Berlin DE,Wienhausen DE

国籍：DE,DE

代理机构：Conley Rose, P.C.

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