A patent has been applied for based on these widely used innovations . a 3d particle velocity measurement system was built upon calibration method of multi - layer regular grid and particle space coordinates determination method of iterative approaching developed in this paper 建立了颗粒三维运动测量系统，提出了“空间多层正交网格”的标定方法，用“多次迭代逼近法”进行颗粒空间坐标的计算。
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Real - time surface velocity field measurement system and three - dimensional particle velocity measurement system are developed . systematic experimental research on the movement of coarse sediment particles in open - channel flows was carried out using developed system 本文研制开发了表面流场实时测量系统和颗粒三维运动测量系统，并采用颗粒三维运动测量系统对明槽水流中粗颗粒的运动进行了系统的试验研究。
