FPGA implementation of a pixel auto-configuration system for an NDB-encoder sensor

FEDERICO ZACCHIGNA; JOSÉ LIPOVETZKY; FABIAN VARGAS; FERNANDO PEREZ QUINTIÁN; NICOLÁS CALARCO; ARIEL LUTENBERG

Buenos Aires

Congreso; 2016 IEEE Biennial Congress of Argentina (ARGENCON); 2016

Abstract:In previous works we introduced optical encoders based on non-diffractive beams (NDB) and showed that they extend the mechanical tolerance limits beyond the marks of the optical encoders technologies currently in use. However, in order to make it suitable for commercial fabrication, the alignment of the light sensor with the NDB should be automatized. In this work we present a new design for the pixels and an algorithm implemented in an FPGA that finds the center of the beam. This algorithm is the first step to automatically align the sensor and is validated using commercial simulation tools.