Design and Implementation of Digital Integral Interpolator Based on LabVIEW

In order to facilitate the students to visually understand digital integral interpolation principle and interpolation process, digital integral interpolator software system was developed using LabVIEW. The system is integrated with linear interpolation and arc interpolation modules, and every module mainly included the interpolation arithmetic initialization start function, interpolation speed control function and interpolation process real-time display function. The front and back panels of each module were designed based on LabVIEW platform, the programming flow charts were designed, and the system was tested comprehensively; the results showed that the interpolator can not only realize single quadrant linear and circular interpolation, but also can realize the span quadrant linear and circular interpolation; furthermore, it can simulate the specific interpolation process of the interpolation algorithm visually and intuitively, which can be used to assist teaching.