Abstract
When measuring product of inertia (POI), the “moment of inertia” method can be applied with big measurable range and low accuracy. Comparing with it, the using of “Dynamic balancing method” can get the result of high accuracy, but only with small range of measurable center of mass eccentricity and POI. For a passive control reentry spacecraft which has big angle between principle axis and rotational axis, each way can’t achieve the demand of large moments, large POI and high accuracy. This paper provides a creative way which combines both ways we mentioned above to measure the POI with high accuracy, large eccentricity and large POI. Meanwhile, the data processing software and specific MGSE are also innovatively integrated in this way to achieve the requirements.
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