grating造句(241) By using a special Ronchi phase grating and polarization phase shifting method, four phase shifted patterns can be captured simultaneously, and thus the dynamic phenomena can be measured.
(242) Four techniques used in drift measurement were compared. They were based on imaging normal sample, periodical regular pattern, zero-reference mask and atomic grating respectively.
(243) A novel fiber grating accelerometer is present which uses FBG as basic sensing element based on cantilevered beam.