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The paper presents a new system for automatic control of the position of finishing beam of a machine for the deposition of asphaltic mixtures. The system uses an inertial transducer for measuring the inclination angle of the beam. The transducer's functioning is without mechanical contact, the variations of the inclination angle being directly transformed into phase variations. A good agreement has been observed between experimental results and theoretical considerations. The quality of the road surface depends on the asphalt mixture composition and the automatic control system of the finishing beam position, which endow the machine specialized in the deposition and finishing of the asphalt mixture. The automatic control system for the declivity angle of the finishing beam plays a very important role: it assures an imposed slope of the road surface regardless of the deposed mixture layer thickness. The paper proposes a new control system for the declivity angle of the finishing beam that uses an inertial sensor for the declivity angle.

Automatic Control System for the Declivity Angle of the Finishing Beam