The results indicate that the peak intensity of transmission beam is limited , and the cross - section intensity distribution is approximately flat - topped super gaussian , which shows the optical limiting effect of sbs 结果表明,透射光束截面光强呈现出近似平顶的超高斯分布,光强峰值被限制,显示出受激布里渊散射的空间光限幅效应。
The ideal bemf waveform of bldcm is trapezoid with 120 ! platform width . in the 120 conduction mode , the stator current is not ideal due to the stator inductance , and the torque ripple occurs 理想的永磁无刷直流电动机的反电动势的波形是120平顶的梯形波,在三相六状态120导通方式控制下,电流由于电机定子电感的存在而不是理想方波,因此产生了换相转矩脉动。