LI Jia-lie, DING Guo-qing, YAN Guo-zheng, ZHU Hong-hai. Method for improving precision in noncontact measurement by linear CCD[J]. Editorial Office of Optics and Precision Engineering, 2002,(3): 281-284
LI Jia-lie, DING Guo-qing, YAN Guo-zheng, ZHU Hong-hai. Method for improving precision in noncontact measurement by linear CCD[J]. Editorial Office of Optics and Precision Engineering, 2002,(3): 281-284DOI:
To measure work pieces by CCD sensor is a common way in the noncontact measurement field
but the precision can only reach μm because of the size of CCD cells
which restricts the wide use of this kind of measurement system.This paper gives a method to improve CCD precision by arithmetic aspect. The experiment demonstrates that this method can improve the measurement precision by one order of magnitude.