PRINCETON SATELLITE SYSTEMS, INC.
|PRINCETON SATELLITE SYSTEMS, INC. Patent applications|
|Patent application number||Title||Published|
|20130082147||Axial flux motor reaction wheel for spacecraft - The invention is for spacecraft reaction wheel with an axial flux dual Halbach rotor with an air coil stator. This wheel is more efficient and has fewer disturbances than a conventional reaction wheel with a brushless DC motor.||04-04-2013|
|20100328645||Multimode Optical Sensor - A Multimode Optical Sensor (MMOS) is a laser radar (ladar) that employs both coherent, or heterodyne, and noncoherent detection at long range, i.e. ranges for which the target is no more than a pixel in dimension. Coherent detection provides much higher velocity resolution while the noncoherent detection can provide better detectability.||12-30-2010|
|20100096854||VERTICAL AXIS WIND TURBINE USING INDIVIDUAL BLADE PITCH AND CAMBER CONTROL INTEGRATED WITH MATRIX CONVERTER - A vertical axis wind turbine that can be actively controlled has the potential to extract wind energy efficiently, and consequently be economically viable for distributed harvesting of wind energy. This invention includes mechanisms and methods for enabling high-efficiency wind energy extraction by a vertical axis wind turbine using active pitch and camber control of individual blades. Blade control is further integrated with generator control and power electronics. Integrated control algorithms are systematically constructed, and transmitted to the wind turbine through a wireless communications interface. The interface also allows the user to continuously monitor the state of the wind turbine system. This invention includes sensors and procedures for periodic self-calibration of wind turbine parameters for preserving the long-term efficiency of wind energy extraction. Furthermore, a capability to intelligently interact with other wind turbine systems in a wind-farm setting is incorporated.||04-22-2010|
|20090201487||MULTI SPECTRAL VISION SYSTEM - A MultiSpectral Vision Sensor (MSVS) that employs three detectors which detect optical radiation in different frequency bands to permit target detection in a wide range of lighting conditions.||08-13-2009|
|20090132105||Proximity Spacecraft Maneuvering - Provided is a method and system for maneuvering a first spacecraft relative to a nearby second spacecraft that occupies a finite volume of space including obstacles in the vicinity of the second from a measured present relative position to a desired ending relative position. A trajectory is computed for the first spacecraft from the present relative position to the ending relative position using the A* algorithm. One or more thrusters of the first spacecraft are then fired. The first spacecraft's relative position and velocity are then measured and compared to the computed trajectory.||05-21-2009|
Patent applications by PRINCETON SATELLITE SYSTEMS, INC.