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Xiong X, Yin C, Quan L, Sato R, Matsukuma H, Shimizu Y, Tamiya H, Gao W. Self-Calibration of a Large-Scale Variable-Line-Spacing Grating for an Absolute Optical Encoder by Differencing Spatially Shifted Phase Maps from a Fizeau Interferometer. Sensors (Basel). 2022 Dec 01;22(23). PMID: 36502050; PMCID: PMC9736133. |