Recent Trends of Linear and Angular Pseudorandom Encoder Development

A new type of absolute encoders, named pseudorandom absolute encoders, was developed to avoid using of large number of code tracks and to achieve high-resolution measurements. Here, a method for parallel reading of pseudorandom code using photodetector array is proposed. Then follows a realization of direct zero position adjustment function as a new trend in absolute encoder´s development. That realization of encoder with possibility of direct zero position adjustment is further developed in form of virtual instrument using LabVIEW software package. Therefore, this developed encoder can be a main part of virtual laboratory which is one of the elements of remote learning. At the end, the proposed solution of direct zero adjustment is more than needed to one pseudorandom encoder which pretends to one of the leader places in encoders of the future