它采用了一种可由计算机控制的、可变空间频率的莫尔条纹投影仪，利用不同空频的两次变精度测量，以适应待测物体形面的突然起伏。
A new kind of moire fringe projector controlled by computer is used for changing the spacial frequency to adapt the contour of the object to be measured.
可变开关频率为缓解这个问题，一种新型的准DPC控制策略与电流回路通过PWM整流器瞬时功率的分析表示。
To alleviate the problem of variable switching frequency, a novel quasi DPC control strategy with current loop was represented through the analysis of PWM rectifier instantaneous power.
数据采集及可变频率的解决方案：采用状态机实施对A/D转换器的控制，速度高，可靠性高；
The data collection and adjustable frequency solution: using state machine to control A/D conversion controller, the system could get higher speed and higher reliability;
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