Design and implementation of an innovative quadratic Gaussian control system for laser surface treatments

This article presents an innovative real-time quadratic Gaussian control system developed specifically for laser surface treatments, analysing the specific issues related to its design and physical implementation. Due to its own nature, the proposed controller optimises the amount of energy deposited by the laser source, inducing a lower thermalisation of the treated element, limiting as well the overshooting and consequently the risk of surface degradation, improving significantly the uniformity and final quality of the process, reducing the rejection rate and increasing the productivity and efficiency of the treatment.