一种新颖的激光窄脉冲峰值保持方法与电路实现  

A Novel Peak Holding Method and Circuit Realization of Laser Narrow Pulse

作　　者：黄民双[1] 唐建[1] 任晓东[1] 

机构地区：[1]北京石油化工学院,光机电装备技术北京市重点实验室,北京102617

出　　处：《核电子学与探测技术》2009年第4期735-737,744,共4页Nuclear Electronics & Detection Technology

摘　　要：首次提出了一种新颖的窄脉冲峰值保持方法。其原理是在脉冲激励下形成衰减振荡波,由峰值包络检波后的电流向电容器充电,最终在电容器上保持脉冲峰值信息。该方法解决了保持电容的充电时间常数完全依赖于脉冲宽度的问题。介绍了工作原理,给出了实现电路和实验结果。该电路结构简单、可靠性好,已经在高精度无协作目标激光脉冲测距仪中应用。A novel peak holding method of narrow pulse is put forward for the first time. The principle is that damped oscillatory waves form under exciting pulses, the capacitance is charged by the electric current getting across peak envelope demodulation, and finally pulse peak information is held on the capacitance. This method has solved some problems, for example, the circuit structure is complex and the reliability and the uniformity is much bad when narrow pulse peak is detected. The work principle of the circuit is introduced, and the actual circuit and experimental results are presented. This circuit whose structure is simple and reliability is good has been already applied in laser pulse range finder with high accuracy norr-cooperation goal.

关 键 词：激光脉冲 RLC并联谐振 峰值保持 窄脉冲 

分 类 号：TN78[电子电信—电路与系统]