An Adaptive Random-Period Interpolator for Stepping Motor Systems

Abstract

In motion control systems driven by stepping motors, reference word interpolation is usually used with a constant period, which inevitably results in vibration caused by quantization errors and interpolation spare. An interpolator with adaptive random-period is proposed: with the adaptive random-period interpolator, the high-frequency energy excitation from stepping motor driving signals can be greatly dispersed and the desired trajectory and feed profile can be realized through the mutual restriction between the velocity and the displacement. Simulation results show that the adaptive random-period interpolator can effectively improve the velocity excitation, resonant excitation and motion accuracy.

Research on High-Speed Linking Algorithm of Continuous Small Blocks

“…However, in the practical situation, the angle between the continuous small blocks may not be extremely small, so it has certain limitation in the actual use. He et al [2] presented a circle arc transition algorithm to improve the connect velocity and the smoothness of the federate profile, but it is too complicated that to configure the arc linking error and chord error that it is produced in arc interpolation. Nowadays, one of the critical research that utilize a parametric spline curve interpolation between continuous small blocks.…”