1 results about "Constant light" patented technology

The present application relates to the technical field of vibration system, especially to a CD drive planar tension self-excited oscillation control system and a control method thereof; by connecting the photothermal elastic element and the passive elastic element to tension the vibration mass point, and combining with the light source irradiation to form the light irradiation area, a planar tension self-excited oscillation control system with simple structure and without external periodic excitation is constructed, the vibration mass point can be driven to continuously and stably self-excited oscillate under constant light, the system realizes self-sufficient energy and cable-free operation, has the ability to resist electromagnetic interference, and is suitable for microgravity and weightless environment; the control method of the present application constructs the CD strain equation and the vibration mass point motion equation based on the measured deformation curve of the photothermal elastic element, solves the target control parameter set through dimensionless processing, realizes the accurate design and pre-control of the system oscillation amplitude, frequency and motion trajectory, and each parameter can be independently or cooperatively adjusted, which significantly improves the controllability and applicability of the system.