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Updated: Oct 2, 2025

Method to Measure Tone of Axial and Proximal Muscle
Published on: December 14, 2011
START: A Satellite Three Axis Rotation Testbed
Giovanni Lavezzi1, Nathan J Stang1, Marco Ciarcià1
1Department of Mechanical Engineering, South Dakota State University, Brookings, SD 57006, USA.
Abstract:
The main goal of this paper is to illustrate the development of a satellite attitude simulator testbed for on-ground experimentation of attitude, determination, and control methodologies. This setup aims to be a low-cost alternative to testbeds based on air-bearing couplings. Our system is mainly composed of a suspended base, a single-board processor, a set of reaction wheels, and a battery. The suspension system entails a set of thin high-tensile strength wires converging on a single wire, which is in turn connected to the base. This configuration allows a three degrees-of-freedom rotation range and minimal resistive torque in all the rotations axis. The adjustability of the hanging point at the base, and a set of sliding masses, allow us to achieve a quite accurate superposition of rotation point and center of mass for a quasi-neutral equilibrium. The testbed is completed by a PC workstation, to generate and stream the desired angular rates of the wheels, and a motion capture system for attitude determination.
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