随机脉冲触发峰值采集电路的设计

Design of the signal value collect circuit triggered with the arbitrary pulse

射线检测装置的输出信号是随机离散的不等幅的高频信号,为形成能谱图,需对此信号进行峰值采样和计数。介绍的随机脉冲触发峰值采集电路,在脉冲到来时自动触发进行采样,使信号采样过程和信号到来时间实时配合,在计算机的控制下,提高了采样频率,又不因空脉冲而占据内存。

The exportation signals of the isotope are arbitrary pulses with the high frequency. Need to gain the signal value and to count, in order to generate the diagram of spectrum. The article introduces the signal value collect circuit triggered with the arbitrary pulse. By the computer, the circuit made signal collect process with signal arriving at time, then the circuit increases collect frequency and did not occupy memory with empty pulse.