一种高精度气溶胶光度计的关键技术研究  

Research on Key Technologies of a High Precision Aerosol Photometer

作　　者：陈建 梁凤飞[2] 胡增[2] 孙吉勇[2] CHEN Jian;LIANG Fengfei;HU Zeng;SUN Jiyong(Suzhou Sujing Instrument Automatic Control Equipment Co.,Ltd.,Suzhou 215122;Jiangsu Sujing Group Co.,Ltd.,Suzhou 215122)

机构地区：[1]苏州苏净仪器自控设备有限公司,苏州215122 [2]江苏苏净集团有限公司,苏州215122

出　　处：《现代制造技术与装备》2019年第11期33-34,共2页Modern Manufacturing Technology and Equipment

摘　　要：气溶胶光度计是一种广泛应用于高效、超高效过滤器过滤效率的主要仪器。因此,研究设计了一种基于APD的高精度、宽量程的气溶胶光度计,以高速嵌入式系统为主控芯片,以APD进行光电信号转换,采用快速可变增益模式,实现高精度、宽量程气溶胶光度计的设计。经过测试,设计的气溶胶光度计实现了0.001~100μg/L的测量,实现了气溶胶的高精度检测,为气溶胶光度计的微型化和便携化迈出了一大步。Aerosol photometer is a kind of main instrument widely used in high-efficiency and ultra-high-efficiency filters.In this paper,a high-precision and wide-range aerosol photometer based on APD is designed.The high-speed embedded system is used as the main control chip,the photoelectric signal is converted by APD,and the fast variable gain mode is adopted to realize high-precision and wide-range aerosol photometer.The aerosol photometer designed in this paper realizes the measurement of 0.001ug/L-100ug/L,realizes the high precision detection of aerosol,and takes a big step for the miniaturization and portability of aerosol photometer.

关 键 词：气溶胶光度计 APD 高精度 可变增益 微型化 

分 类 号：X51[环境科学与工程—环境工程]