Valve flow characteristic implementing method for intelligent actuator

The invention belongs to the field of industrial auto instrument, especially deals with a method of achieving valve flux smoothly in the aptitude performer. The existing method can hardly meet the complex need of lots of kinds in the fact, and the custom fording line is only an approximation of the reality non-smoothly. The invention turns the achieving of valve flux to the operation to the controlling signal inputted. First, no deed to change the shape of the valve core and the localizer cam; second, to every kind of flux characteristic, there are curves of no class to use and they are smooth and precise; third, the curves are chosen conveniently through only one parameter of important engineering background, so it solves the existing technical bugs and it's easy to achieve.