Abstract
In this letter, a flexible self-calibration method for large-stroke motion stage (LSMS) was proposed, which adopted the multi-region stitching strategy based on least square algorithm. Through the segmentation of LSMS and the stitching correction of small regions, the compensation of positional accuracy of LSMS was carried out successfully, which breaks through the technical limitation that the current self-calibration method can only calibrate a limited area. This presented method can be expected to realize the calibration of LSMS of arbitrary size instead of high-cost laser interferometer measurement system.
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