Archivio Istituzionale della RicercaThis paper describes the application of a novel active disturbance rejection control (ADRC) to the stabilization of the temperature of two ultra-stable Fabry–Pérot cavities. The cavities are 10 cm long and entirely made of ultra-low-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; Davide, Calonico; Claudio, Calosso; Clivati, Cecilia; Costanzo, Giovanni Antonio; Filippo, Levi; Alberto, Mura. - In: IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL. - ISSN 0885-3010. - STAMPA. - 60:2(2013), pp. 273-280. [10.1109/TUFFC.2013.2563]
Active Disturbance Rejection Control of Temperature for Ultrastable Optical Cavities
PIZZOCARO, MARCO;CLIVATI, CECILIA;COSTANZO, Giovanni Antonio;
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–Pérot cavities. The cavities are 10 cm long and entirely made of ultra-low-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.
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https://hdl.handle.net/11583/2503360
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