After showing the program flow-chart about the vortices detection and flow calculation, a new way to realize intelligent functions is proposed, namely to realize functions by parameterization, that's to say, with friendly interface, the users can easily make intelligent instrument configuration program and perform parameters setting, self-correction, self-diagnosis, display mode selection, and management parameter determination by setting the value of a special parameter. In software design, a special man-machine interactive software module achieve according to the name of parameter item is offered, to the modularization of the software.