Optics and Precision Engineering, Volume. 21, Issue 5, 1244(2013)

Stepped and fast limiting pendulous gyroscope

WANG Zhen-ye*, GUO Xiao-song, and ZHOU Zhao-fa
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    A stepped and fast limiting method to allow the equilibrium position of a swing to track the turning point was put forward for improving the limiting efficiency of pendulous gyroscopes. The working principle and achieving steps were introduced and the influences of three types of measurement errors on the limiting effect were analyzed. Then the feasibility of the proposed limiting method was demonstrated in theory. Finally, the method was applied to a pendulous gyroscope, and the swing range was limited exactly and rapidly by using the equilibrium position of the swing to track the turning point. The limiting experiment was designed based on the proposed limiting method. The theory and experiment results show that the new method has overcome the electromagnetic interference torque problem from the electromagnetic damping method and can keep the limiting reliability without adding system hardware. The pendulous gyroscope can just spend about 60 s to limit the swing, which saves more than 2 step periods than traditional one. This method can provide a theoretical support and practical basis for shorting the time of north seeking.

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    WANG Zhen-ye, GUO Xiao-song, ZHOU Zhao-fa. Stepped and fast limiting pendulous gyroscope[J]. Optics and Precision Engineering, 2013, 21(5): 1244

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    Paper Information

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    Received: Nov. 14, 2012

    Accepted: --

    Published Online: May. 31, 2013

    The Author Email: WANG Zhen-ye (wzy20040412@163.com)

    DOI:10.3788/ope.20132105.1244

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