Much of the noise can be eliminated with an amplitude discriminator. The light can be counted with a pulse counter. 用幅度甄别器去掉大部分噪声,用脉冲计数器计数。
A pulse amplitude discriminator with very low-power consuming 微功耗脉冲幅度甄别器
Shaping circuits include signal linear amplifier circuit, pole-zero cancellation circuit, programmable amplifier, active integral filter circuit, baseline recovery circuit, and pulse amplitude discriminator circuit. 信号调理电路包括:信号线性放大电路、极零相消电路、程控放大电路、有源积分滤波器电路、基线恢复电路和脉冲幅度甄别电路。