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Metrology and Measurement Systems

The Journal of Committee on Metrology and Scientific Instrumentation of Polish Academy of Sciences

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Volume 22, Issue 1


The Static Unbalance Analysis and Its Measurement System For Gimbals Axes of an Inertial Stabilization Platform

Hui Yang
  • School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Yan Zhao
  • School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Min Li
  • School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Falin Wu
Published Online: 2015-02-20 | DOI: https://doi.org/10.1515/mms-2015-0002


To reduce the influence of the static unbalance on an infrared missile guidance system, a new static unbalance measure system for the gimbals axes has been developed. Considering the coupling effects caused by a mass eccentricity, the static balance condition and measure sequence for each gimbal axis are obtained. A novel static unbalance test approach is proposed after analyzing the dynamic model of the measured gimbal axis. This approach is to drive the measured gimbal axis to do sinusoidal reciprocating motion in a small angle and collect its drive currents in real time. Then the static unbalance of the measured gimbal axis can be obtained by the current multi-cycle integration. Also a measuring system using the proposed approach has been developed. A balanced simulator is used to verify the proposed approach by the load and repeatability tests. The results show the proposed approach enhances the efficiency of the static unbalance measurement, and the developed measuring system is able to achieve a high precision with a greater stability.

Keywords: inertial stabilization platform; mass eccentricity; angular position turntable; dynamical model; leastsquare fitting


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About the article

Received: 2014-05-09

Accepted: 2014-09-22

Published Online: 2015-02-20

Published in Print: 2015-03-01

Citation Information: Metrology and Measurement Systems, Volume 22, Issue 1, Pages 51–68, ISSN (Online) 2300-1941, DOI: https://doi.org/10.1515/mms-2015-0002.

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© Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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