Speaker
Description
To meet the demanding experimental capabilities enabled by 4th-generation synchrotron light sources, the LNLS/Sirius engineering teams have adopted a mechatronic development workflow inspired by best practices from the precision engineering industry.
This talk presents the resulting workflow, tools, and methods for the design and implementation of motion control in the highest-performance optical elements (e.g. monochromators) and sample positioning stages. The process begins with mechanical design, supported by early and detailed analysis of how components and external disturbances influence closed-loop performance. System identification is then applied to validate dynamic behavior—including resonances and coupling effects—and to provide accurate models for SISO-based design methods such as loop shaping and feedforward compensation. A real-time, FPGA-based platform enables the development of a scalable, high-performance control library capable of deploying and testing high-order controllers across multiple degrees of freedom. Results from three distinct beamline systems illustrate the effectiveness and benefits of this integrated approach.