恒比定时触发器(定比触发器)是激光人卫测距系统中的一个关键部件。它将输入的激光主、回波信号按一定的比例产生一个输出脉冲,其前沿出现的时刻不随输入信号幅度而变化,用它们来作为计数器的开门和关门信号能大大减小测距误差,经鉴定对于用腔倒空器件的人卫测距系统,对地面靶板测距,当接收面积改变128倍时,所得均方差优于±10cm,最小均方差达±4.5cm。定比触发器在核物理及粒子物理实验中也得到广泛运用。本线路经测定对于上升时间≤ Constant ratio timer trigger (fixed ratio trigger) is a key component of the laser man-based ranging system. It will enter the laser main and echo signals according to a certain ratio to produce an output pulse, the leading edge of the moment does not vary with the input signal amplitude, using them as the counter to open and close the signal can greatly reduce the error ranging Identification For human-body distance measurement system with cavity emptying device, the distance to the ground target is measured. When the receiving area is changed by 128 times, the mean square deviation is better than ± 10cm and the minimum mean square deviation is ± 4.5cm. Constant ratio trigger in the nuclear physics and particle physics experiments have also been widely used. The line was determined for the rise time ≤