ZHANG Hong-sheng, FENG Chang-you. Improvement of measurement precision of circular raster by photoelectric phase-comparing method for angle positioning[J]. Editorial Office of Optics and Precision Engineering, 2000,(5): 482-486
ZHANG Hong-sheng, FENG Chang-you. Improvement of measurement precision of circular raster by photoelectric phase-comparing method for angle positioning[J]. Editorial Office of Optics and Precision Engineering, 2000,(5): 482-486DOI:
Formula is used to explain the factors affecting the measurement precision of score errors of the circular raster by photoelectric phase-comparing method for angle positioning. It is proved that
under the conditions of high stability of the instrument and high turning precision of principal axis
the higher measurement precision can be achieved by using spectroscopic phase-splitting method for reading system
inverted OR gate for phase-discrimination
interpolation method and symmetry relation method.