YANG Chun-zhen, BAI Li-xin. Measurement of micro-displacement based on new type of grating sensor[J]. 2012, 31(7): 123-125. DOI: 10.13873/j.1000-97872012.07.042.
A new type of grating sensor are applied in measurement of micro-displacement in this experiment.By comparing the relation between linear(or angular) displacement and the movement number of Moiré fringes
the experiment shows that grating sensors have advantages of good linearity(R 2 ≥0.999) and accuracy(error≤ 2.0 %) in the measurement of micro-displacement.The feasibility and reliability of grating sensors are verified.