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Development of Lower Frequency Disturbance Detector for Reaction Wheel Analysis

[+] Author Affiliations
S. Taniwaki

Keio University

Y. Hatsutori

University of Tokyo

Y. Ohkami

Japan Aerospace Exploration Agency

Paper No. IMECE2005-79318, pp. 287-296; 10 pages
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Noise Control and Acoustics
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Noise Control and Acoustics Division
  • ISBN: 0-7918-4225-8 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME


The reaction wheel (RW) is a key component in the attitude control system of spacecraft, but it is also a major source of disturbances. In this paper, we present a recently developed two types of disturbance detectors. One is the two-dimensional force and torque sensor with an air-table mechanism, the other is one-dimensional force sensor with an air-slide mechanism. Both of them are sensitive to low-frequency disturbances which are difficult to be detected with previous technique. In this paper, their measurement principle, measurement accuracy and measurement examples for RW induced disturbances are shown.

Copyright © 2005 by ASME
Topics: Sensors , Wheels



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