Incremental displacement sensor and method for determining the displacement of an object relative to another object

摘要

The sensor (100) has a scanning unit (22) comprising sensors (C1-C8) i.e. inductive proximity switches, for scanning areas of a graduation track (30) based on physical characteristics. The sensors are arranged at a distance from each other over a periodic length of the track, where a switch signal is generated from measuring signals of the sensors in an evaluation unit (60) to determine a displacement of an object (10) relative to another object (20). The unit (60) is connected with the unit (22), where the switch signal receives a value, when two of the sensors assume a maximum value. An independent claim is also included for a method for determining a displacement of an object relative to another object by using an incremental displacement sensor.