摘要
以单片机为核心,运用十联体电磁阀、三通阀和微型步进蠕动泵等流控器件设计新型多流路控制系统。对比测试结果表明,该系统能完成20多种流路切换,进样速度快,加样误差小于1%,能快速、高效地清洗进样通道,并避免交叉污染,而且成本低、不易堵塞、稳定性良好。
A novel multi-stream control system was proposed for multi-parameter water quality analyzer.The MCU-cored system consisting of streams control devices of ten conjoined solenoid valves,three-way valve and step peristaltic micro-pump has characteristics of low cost and less plugging and high stability compared with the streams systems composed of multi-position valve and injector pump.Testing results show that this system can achieve streams switching among over 20 streams,8mL/min sample rate,less than 1% sampling error,a quick cleaning and elimination of cross-contamination.
出处
《化工自动化及仪表》
CAS
北大核心
2011年第4期439-442,共4页
Control and Instruments in Chemical Industry
基金
国家"863"计划项目(2007AA042101)
科技部国际科技合作项目(2007DFC00040)
