Digital control design of a suspended table for fine scientific experiments is presented. The problem was suggested by an experiment to measure the universal gravitation constant $G$, requiring two residual rotations of the table with respect to the horizontal plane to be below 1 nrad. The problem was tackled by assuming a 2D clinometer and accelerometers as transducers. As actuators, linear electric moving-coil motors are necessary to avoid contact between the building and the table. The digital control was designed and tested using a fine numerical simulator of the plant and of environmental disturbances. The simulation tests of a first simplified version of the Digital Control Unit showed that the requirements may be met.

Nanoradian digital stabilization of a suspended table for scientific experiments / Canuto, Enrico; Tonani, S.. - STAMPA. - II:(2001), pp. 645-648. (Intervento presentato al convegno 8th IEEE Int. Conf. on Emerging Technologies and Factory Automation, ETFA 2001 tenutosi a Antibes Juan les Pins, France nel October 15-18, 2001) [10.1109/ETFA.2001.997748].

Nanoradian digital stabilization of a suspended table for scientific experiments

CANUTO, Enrico;
2001

Abstract

Digital control design of a suspended table for fine scientific experiments is presented. The problem was suggested by an experiment to measure the universal gravitation constant $G$, requiring two residual rotations of the table with respect to the horizontal plane to be below 1 nrad. The problem was tackled by assuming a 2D clinometer and accelerometers as transducers. As actuators, linear electric moving-coil motors are necessary to avoid contact between the building and the table. The digital control was designed and tested using a fine numerical simulator of the plant and of environmental disturbances. The simulation tests of a first simplified version of the Digital Control Unit showed that the requirements may be met.
2001
0780372417
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1409343
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