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本文提出一种可测量非对称凸轮和对称凸轮中心线位置的最小方差法。证明了方差函数在测量区间内是严格凸函数,从而可用一维搜索法对最小方差值寻优,提高了测量效率。
In this paper, we propose a minimum variance method that can measure the centerline position of asymmetric cam and symmetrical cam. It is proved that the variance function is a strictly convex function in the measurement interval, so that the one-dimensional search method can be used to optimize the minimum variance value and improve the measurement efficiency.