自动频率控制AFC(Automatic Frequency Control)是通过加速波导管中的微波相位移动特性,测定和纠正微波工作频率的一套零点系统.在混合环路(Hybrid Ring)组件中,向前功率的微波相位和反射功率的微波相位进行比较,由混合环路中的向前方...自动频率控制AFC(Automatic Frequency Control)是通过加速波导管中的微波相位移动特性,测定和纠正微波工作频率的一套零点系统.在混合环路(Hybrid Ring)组件中,向前功率的微波相位和反射功率的微波相位进行比较,由混合环路中的向前方向和相反方向的晶体二极管来测定矢量和或矢量差的输出.工作频率正确时,晶体二极管上探测到的信号总和是零.因此误差信号在正方向或负方向增加时,微波工作频率会上下变动,这个误差信号被采样放大并且去驱动AFC旋转马达,使其达到正确的频率.展开更多
Based on Lucovsky equation,the response solution of 1-D position sensitive detector(PSD) is given under the condition of parallel light oblique incidence and Gaussian beam oblique incidence,and the response characteri...Based on Lucovsky equation,the response solution of 1-D position sensitive detector(PSD) is given under the condition of parallel light oblique incidence and Gaussian beam oblique incidence,and the response characteristics are analyzed by numerical calculation. The relation between oblique incident angle and output current is introduced and illustrated.展开更多
文摘自动频率控制AFC(Automatic Frequency Control)是通过加速波导管中的微波相位移动特性,测定和纠正微波工作频率的一套零点系统.在混合环路(Hybrid Ring)组件中,向前功率的微波相位和反射功率的微波相位进行比较,由混合环路中的向前方向和相反方向的晶体二极管来测定矢量和或矢量差的输出.工作频率正确时,晶体二极管上探测到的信号总和是零.因此误差信号在正方向或负方向增加时,微波工作频率会上下变动,这个误差信号被采样放大并且去驱动AFC旋转马达,使其达到正确的频率.
基金Program of the Science and Technology Department of Fujian Province(2007F5040)
文摘Based on Lucovsky equation,the response solution of 1-D position sensitive detector(PSD) is given under the condition of parallel light oblique incidence and Gaussian beam oblique incidence,and the response characteristics are analyzed by numerical calculation. The relation between oblique incident angle and output current is introduced and illustrated.
