By analyzing time sequence of outputs of upper and lower discriminators, a simple, effective and practical method is presented, in which singlc- channel pulse height discrimination circuit is implemented by means of dual monostable multivibrator, and actual circuit is built to solve complieated circuit of common single - channel pulse height analyzer. Actual working waves show that the novel method is feasible and test circuit works properly and reliahly as the input signal frequency increase up to 400 kHz, sine wave or exponent falling.It may be applied to pulse height discrimination in nuelear radiation energy measurement.%针对现行普通单道脉冲幅度分析器的电路较为复杂的问题,在分析研究上下甄别输出脉冲时序逻辑的基础上,提出了利用双单稳态实现单道脉冲幅度甄别的简单、有效、实用的方法,并搭建了电路.实际工作波形表明,该方法可行,电路能够在输入正弦或指数下降脉冲频率高达400 kHz时正常、可靠工作,可应用于核辐射能量测量的幅度甄别.
展开▼
