Conception and Construction of a 3 DOF Optical Precision Sensor Integrated in Micro-Robots

This diploma project’s goal was to develop a low-cost 3 DOF position sensor of small dimension that permits to find the position and orientation of the actuated object and thus, enable a closed loop control in 3 DOF. The range in X and Y should be at least 30x30mm2 and in Theta-z 360°. An absolute code was implemented in the target in order to always track the absolute position.