Curve Design of Stepper Motor and Simulation
In this paper,a control model of stepper motor after studying on its three phases hybrid drive was set up, and the potential relation between the motor speed curve and its motion performance in a real drive system was found out.Then the optimization control of precise and fast orientation of the stepper motor was given with MATLAB simulink.
We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generating mode-locked ::: spectra with a smooth and well-behaved spectral phase. A very good agreement with experimental measurements ::: of pulse energy, spectrum, and temporal width of extracavity compressed pulses is found.