Method and apparatus for linear position detection using De Bruijn sequence as scale ID

摘要

a sensor unit and a control unit, wherein the sensor unit reads a first de Bruin code from a first de Bruin sequence unit indicating a first de Bruin sequence of the linear scale, and a second de Bruin sequence of the linear scale reads a second de Bruin code from a second de Bruin sequence unit representing and determining the ID of the linear scale based on the second de Bruin code, a linear position detecting apparatus is disclosed.