This paper describes the application of a novel active disturbance rejection control (ADRC) to the stabilization of the temperature of two ultra-stable Fabry-Perot cavities. The cavities are 10 cm long and entirely made of ultralow- expansion glass. The control is based on a linear extended state observer that estimates and compensates the disturbance in the system in real time. The resulting control is inherently robust and easy to tune. A digital implementation of ADRC gives a temperature instability of 200 μK at one day of integration time.
Active Disturbance Rejection Control of Temperature for Ultrastable Optical Cavities / Pizzocaro, Marco; Calonico, Davide; Calosso, C.; Clivati, Cecilia; Costanzo, G. A.; Levi, Filippo; Mura, A.. - In: IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL. - ISSN 0885-3010. - 60:2(2013), pp. 273-280. [10.1109/TUFFC.2013.2563]
Active Disturbance Rejection Control of Temperature for Ultrastable Optical Cavities
PIZZOCARO, MARCO;CALONICO, DAVIDE;C. Calosso;CLIVATI, CECILIA;LEVI, FILIPPO;A. Mura
2013
Abstract
This paper describes the application of a novel active disturbance rejection control (ADRC) to the stabilization of the temperature of two ultra-stable Fabry-Perot cavities. The cavities are 10 cm long and entirely made of ultralow- expansion glass. The control is based on a linear extended state observer that estimates and compensates the disturbance in the system in real time. The resulting control is inherently robust and easy to tune. A digital implementation of ADRC gives a temperature instability of 200 μK at one day of integration time.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
