Application of Robust Control to a Cryogenic Current Comparator

This paper describes the implementation of a digital robust controller in a cryogenic current comparator. The controller was designed applying H∞ control theory and it was programmed in a home-made digital unit. Experimental comparisons of the new robust controller with the conventional analog integrator have showed a significant improvement of stability robustness and noise rejection in the system.Fil: Bierzychudek, Marcos Eduardo. Instituto Tecnológico de Buenos Aires; Argentina. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Götz, Martin. Physikalisch-technische Bundesanstalt; AlemaniaFil: Sanchez Peña, Ricardo Salvador. Instituto Tecnológico de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Iuzzolino, Ricardo Javier. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Drung, Dietmar. Physikalisch-Technische Bundesanstalt; Alemani