用于液体粒子计数的PIN光检测传感器的设计  

Design of PIN optical detecting sensor for liquid-article-count

作　　者：肖金球[1] 徐树梅[1] 刘传洋[1] 

机构地区：[1]苏州科技学院电子信息工程系,江苏苏州215011

出　　处：《传感器技术》2004年第11期35-37,共3页Journal of Transducer Technology

摘　　要：设计了用于液体粒子计数的PIN光检测传感器,介绍了光散射式粒子传感器的工作原理及其光学检测系统构成,并且对其放大电路的原理做了具体的分析。理论和实践证明:这种新型光检测传感器具有信噪比高、体积小、灵敏度高、测量准确,抗干扰能力强、能耗低等特点,可识别的粒径范围为0.1～10μm,尤其适用对液体中微粒光散射信号的有效检出与在线监测。A kind of PIN optical detecting sensor is designed for particle-counting in liquid,and both the principle of the light-scattering-particle sensor and the composition of optical detecting system are also introduced.At the same time,a detail analysis is made of the machinery of amplifying circuits. The results show that the new optical detecting sensor has such characteristic as high signal-to-noise,small volume,high sensitivity,accurate measurement,anti-interference,low power and so on.It can recognize particle sizes of 0.1～10 μm. This technology especially can be used to detect light-scattering signal of particle in liquid and monitor on line.

关 键 词：放大电路 体积小 计数 PIN 信噪比 信号 抗干扰能力 传感器 设计 识别 

分 类 号：TN492[电子电信—微电子学与固体电子学] TP212[自动化与计算机技术—检测技术与自动化装置]