CAJ | 학술논문

高速大容量气溶胶粒子分类计数存储器的设计
고속대용량기용효입자분류계수존저기적설계
Design of high-speed and large-capacity classifying count storages for aerosol particles

万方数据

光学精密工程光學精密工程 광학정밀공정
OPTICS AND PRECISION ENGINEERING
2010年 1期 15-20 ,共6页

黄书华%刘建国%刘文清%陆亦怀%张玉钧%桂华侨%孙世杰%江宇%陈军%王亚萍

황서화%류건국%류문청%륙역부%장옥균%계화교%손세걸%강우%진군%왕아평

气溶胶%飞行时间%多道存储%分类计数存储器氣溶膠%飛行時間%多道存儲%分類計數存儲器
기용효%비행시간%다도존저%분류계수존저기
aerosol%time of flight%multi-channel storage%classifying count storage

为实现气溶胶颗粒物的空气动力学粒径及其光学粒径的同时测量,对颗粒物按粒径大小进行分类计数,利用电子学多道存储技术,结合大规模可编程逻辑电路和高速大容量双端口内存芯片,设计了一种高速大容量粒子分类计数存储器.该存储器实现了单一脉冲计数器与特征信号分类计数器的有机结合,其存储容量高达65 535道,每道可计数65 535个,操作速度可达15 ns;而且线路简单,整个电子学多道电路只需要两片MACH435和两片IDT7009芯片.用设计的存储器对空气中空气动力学粒径为0.5～20 μm的气溶胶颗粒物进行计数,得到了颗粒物的粒谱分布.该存储器已应用于本研究所自行研发的空气动力学粒谱仪,完全满足仪器连续、实时、在线监测时对存储速度和容量的要求.
위실현기용효과립물적공기동역학립경급기광학립경적동시측량,대과립물안립경대소진행분류계수,이용전자학다도존저기술,결합대규모가편정라집전로화고속대용량쌍단구내존심편,설계료일충고속대용량입자분류계수존저기.해존저기실현료단일맥충계수기여특정신호분류계수기적유궤결합,기존저용량고체65 535도,매도가계수65 535개,조작속도가체15 ns;이차선로간단,정개전자학다도전로지수요량편MACH435화량편IDT7009심편.용설계적존저기대공기중공기동역학립경위0.5～20 μm적기용효과립물진행계수,득도료과립물적립보분포.해존저기이응용우본연구소자행연발적공기동역학립보의,완전만족의기련속、실시、재선감측시대존저속도화용량적요구.
To characterize the size distribution of aerosol particles, a measuring simultaneously method for aerodynamic diameters and optic diameters of the aerosol particles is studied, and then the classifying count principle is described. Based on large-scale programmable logic chips and dual-port high-speed large-capacity memory chips, a high-speed and large-capacity classifiying count storage for aerosol particles is designed by using a multi-channel storage technology. By combining with the functions of single pulse counters and characteristic signal classifiying counters, the storage can offer the capacity up to 65 535 channels, each of which can count to 65 535 particles with a operating speed up to 15 ns. The storage has a simple circuit,and its multiple channel circuits make only up of two MACH435 and two IDT7009 chips.The characteristics of aerosol particles with the sizes of 0.5～20 μm in air is counted,and the particle distribution spectra are obtained. As a key storage component of the aerodynamic particle sizer developed by our institute, this storage satisfies the requirements of the measurement in real time for the speed and capacity.