The Force Balance Dynamometer (FBD) Series is for use in vacuum and temperature chambers which measure both static unbalance (due to CG offset) and dynamic unbalance (due to product of inertia) and eliminates errors due to aerodynamic forces. When measuring static and dynamic unbalance of a satellite in a vacuum chamber to balancing inertia wheels, the FBD series of force balance dynamometers offers a high accuracy solution for demanding applications. System software collects unbalance data, reports unbalance information, calculates correction mass solutions, and measures the expected residual unbalance of the payload after balancing.
This new instrument has the ability to spin balance a payload in a vacuum environment and thereby provide a solution to eliminate errors due to aerodynamic forces. It is low profile, permanently calibrated, has unmatched sensitivity, and can be used over a wide temperature range. Measurement sensitivity of the FBD system is equivalent to the Space Electronics traditional POI series, which features the best accuracy in the world for low spin speed applications.