A novel Laser screen velocity measuring method with large effective screen area is introduced for some special velocity measuring occasions like wide spreading range or big-size flying objects.
The error caused by the ring method of equivalent area to measure the mean velocity of the circular pipe is studied by the different now pattern.
根据不同流型讨论了等面积圆环法确定断面平均流速时所产生的误差。
3
Theoretical and real processing results show that the method is very suitable to the image of steep-dip seismic data in the area where seismic velocity varies with depth.