The solar tracker includes a pivoting assembly (2) having solar panels (3) fixed to a rotating shaft (1), a fixed structure with support elements (4, 5, 6) rotationally supporting the rotating shaft (1), a motor-reducer assembly (7) having an irreversible reducer (24) connected to the rotating shaft (1) at a motor connection point (12), and a torsional vibration damping device (8) having a moving member (9) rigidly connected to the rotating shaft (1) at a damper connection point (13) spaced apart from the motor connection point (12) and a stationary member (10) rigidly attached to the fixed structure. Both the moving member (9) and the stationary member (10) comprises elements capable to generate a magnetic field when a movement of the moving member (9) relative to the stationary member (10) occurs, resulting in a damping torque on the rotating shaft (1).

The solar tracker includes a pivoting assembly (2) having solar panels (3) fixed to a rotating shaft (1), a fixed structure with support elements (4, 5, 6) rotationally supporting the rotating shaft (1), a motor-reducer assembly (7) having an irreversible reducer (24) connected to the rotating shaft (1) at a motor connection point (12), and a torsional vibration damping device (8) having a moving member (9) rigidly connected to the rotating shaft (1) at a damper connection point (13) spaced apart from the motor connection point (12) and a stationary member (10) rigidly attached to the fixed structure. Both the moving member (9) and the stationary member (10) comprises elements capable to generate a magnetic field when a movement of the moving member (9) relative to the stationary member (10) occurs, resulting in a damping torque on the rotating shaft (1).

Disclosed are systems and methods for manufacturing energy directing systems for directing energy of multiple energy domains. Energy relays and energy waveguides are disclosed for directing energy of multiple energy domains, including electromagnetic energy, acoustic energy, and haptic energy. Systems are disclosed for projecting and sensing 4D energy-fields comprising multiple energy domains.

The present disclosure is directed to multi-stage falling particle receivers and methods of falling particle heating. As the particles fall through the receiver, the particles are periodically collected and released by flow retarding devices. The periodic catch-and-release of the particles falling through the receiver reduces particle flow dispersion, increases particle opacity and solar absorption, and reduces erosion and damage to surfaces caused by direct particle impingement.

The present disclosure is directed to multi-stage falling particle receivers and methods of falling particle heating. As the particles fall through the receiver, the particles are periodically collected and released by flow retarding devices. The periodic catch-and-release of the particles falling through the receiver reduces particle flow dispersion, increases particle opacity and solar absorption, and reduces erosion and damage to surfaces caused by direct particle impingement.

The present disclosure is directed to multi-stage falling particle receivers and methods of falling particle heating. As the particles fall through the receiver, the particles are periodically collected and released by flow retarding devices. The periodic catch-and-release of the particles falling through the receiver reduces particle flow dispersion, increases particle opacity and solar absorption, and reduces erosion and damage to surfaces caused by direct particle impingement.

The present disclosure is directed to multi-stage falling particle receivers and methods of falling particle heating. As the particles fall through the receiver, the particles are periodically collected and released by flow retarding devices. The periodic catch-and-release of the particles falling through the receiver reduces particle flow dispersion, increases particle opacity and solar absorption, and reduces erosion and damage to surfaces caused by direct particle impingement.

Disclosed are systems and methods for manufacturing energy relays for energy directing systems inducing Ordered Energy Localization effects. Ordered Energy Localization relay material distribution criteria are disclosed. Transverse planar as well as multi-dimensional ordered material configurations are discussed. Methods and systems are disclosed for forming non-random patterns of energy relay materials with energy localization properties.

Disclosed are systems for directing energy according to holographic projection. Configurations of waveguide arrays are disclosed for improved efficiency and resolution of propagated energy through, tessellation of shaped energy waveguides.

A solar tracker including a torque tube, a drive device connected to one end of the torque tube, a frame assembly coupled to the torque tube, the frame assembly arranged perpendicular to the axis of the torque tube and supporting a plurality of solar modules. The solar tracker further includes a clamp assembly having a housing coupled to the torque tube where the torque tube is coupled to the housing, the housing having an opening with a major plane normal to a length of the torque tube, the opening having an inner region that acts as a stop for the torque tube when moved in a first direction, and as a stop for the torque tube when moved in a second direction and the drive device is operable to move the torque tube about a center of rotation from a first position to a second position.