The high spatial resolution digital phase-shifting technology and feedback control technology were utilized in design of the device to improve its precision.
该标准装置采用高分辨率全数字移相技术和反馈控制技术,有效地提高了装置输出精度。
2
The present method is achieved with an amplitude gray-scale spatial light modulator (SLM) as the image input device and based on double exposure holographic phase-shifting interferometry.