Particle Image Velocimetry（PIV） is a non-disturbed instantaneous whole-field velocimetric technique,which is used in fluid dynamics research widely.In the paper,the author made an attempt to apply the techniques in the research of flow sensing.By analyzing the movement of tobacco in air duct,using the PIV techniques and PTV techniques to applied the image processing and get the movement velocity,which PIV techniques have many advantages and could ag...
