公开(公告)号：US06534965B2

公开(公告)日：2003-03-18

申请号：US09813833

申请日：2001-03-22

申请人： Kunio Ueno ,  Seiya Shinabe ,  Yoichi Nakamura

发明人： Kunio Ueno ,  Seiya Shinabe ,  Yoichi Nakamura

IPC分类号： G01N7200

CPC分类号： G01N15/1227 ,  G01N2015/1037 ,  G01N2015/1062 ,  G01N2015/1081

摘要： A particle signal processing apparatus which processes a particle signal representative of characteristics of particles includes an amplifier having input and output terminals for amplifying a particle signal including serial pulses to output an output signal including the amplified serial pulses, a filter section for extracting a low frequency component from the output signal of the amplifier so that the extracted component is fed back into the input terminal as a negative feedback signal, and a feedback signal control section for allowing the filter section to fix the negative feedback signal when each of the amplified pulses rises and to hold the fixed negative feedback signal while the amplified pulse is larger than a threshold value.

摘要翻译： 处理表示粒子特性的粒子信号的粒子信号处理装置包括放大器，具有用于放大包括串行脉冲的粒子信号的输入和输出端子，以输出包括放大的串行脉冲的输出信号;滤波器部分，用于提取低频 分量，使得所提取的分量被反馈到输入端作为负反馈信号，以及反馈信号控制部分，用于当每个放大脉冲上升时允许滤波器部分固定负反馈信号 并且在放大的脉冲大于阈值时保持固定的负反馈信号。