基于流量闭环控制的粉尘采样器设计  

Design of dust sampler based on closed-loop flow control

作　　者：吴付祥 

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《工矿自动化》2015年第7期21-24,共4页Journal Of Mine Automation

基　　金：国家自然科学基金项目(U1261205);重庆市科技人才培养(新产品研发团队建设)项目(cstc2013kjrc-tdjs20003)

摘　　要：针对基于开环控制的粉尘采样器存在采样误差较大的问题,设计了基于流量闭环控制的粉尘采样器。该采样器采用微型气体流量传感器采集流量,采用带死区的增量PID控制算法实时监测采样流量的变化并进行及时调整,消除了流量随负载变化引起的误差,确保了粉尘采样计量的准确性。In view of problem of big sampling error of dust sampler based on open-loop control,a dust sampler based on closed-loop flow control was designed.The sampler uses micro gas flow sensor to collect flow,adopts incremental PID control algorithm with die area to real-timely monitor and adjust sampling flow change,eliminates error of the flow changing by load and ensures measurement accuracy of dust sampling.

关 键 词：粉尘采样器 流量传感器 增量PID 闭环控制 

分 类 号：TD679[矿业工程—矿山机电]