Research on the Implementation Method of the Fine Subdivision of Grating Sensor Signal

摘要

Precision measurement technology is the important measure of a nation's industrial technology level. However, with the rapid development of modern science and technology, metrologjcal grating directly used for displacement measurement has could not meet the needs of contemporary people to the accuracy of measurement. So it is necessary to subdivide the grating sensor signal, especially the fine subdivision which has been increasingly concerned. Aiming at the constructor method used in the specific implementation process of the fine subdivision of the grating sensor signal, two schemes are put forward in this paper. Based on the analysis and comparison of the two methods, at last, the optimal design scheme will be determined.