Importance

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Abstract

The present invention relates to measurement of cross-inertia-moment in a limited angular rotatory axis, and more specifically, to a measuring device and method of cross-inertia-moment in a limited angular rotatory axis. The measuring device includes a base plate; a pair of first supporters, each end portion being secured on the base plate through a load cell, for supporting a first rotatory axis; a second supporter installed inbetween the pair of first supporters to be able to rotate round the first rotatory axis, for supporting a second rotatory axis that is orthogonal to the first rotatory axis; and a roller installed at the inside of the second supporter, being rotatable round the second rotatory axis. Therefore, the present invention enables to measure and amend the cross-inertia-moment of multiple axis LOS (line of sight) stabilizer as well as low speed rotatory machinery. The present invention is also effective for minimizing the interference of the cross-inertia-moment due to the inertia in a precision stabilizer like the multiple axis LOS stabilizer, consequently improving the precision of the multiple axis LOS stabilizer

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First Claim