基于流量闭环控制的粉尘采样器设计

基金项目:

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）

详细信息

Design of dust sampler based on closed-loop flow control

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。
- 粉尘采样器 /
- 流量传感器 /
- 增量PID /
- 闭环控制
Abstract: 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.
- dust sampler /
- flow sensor /
- incremental PID /
- closed-loop control