摘要
全自动动态配气仪是目前气体配制领域使用广泛的仪器,本配气系统采用质量流量比法配制标准混合气体,通过严格控制一定比例的组分气体和稀释气体的流量,并加以混合而制成标准气体。控制系统采集气体浓度传感器信号同预先输入的设定值比较,利用智能PID控制,调节流量控制器输出流量,达到配制给定浓度气体的要求。
Automatic dynamic gas-mixer is widely used in the field of gas preparation at present.This system adopts mass flow ratio method to produce standard mixed gas,and makes standard gas by strictly controlling the flow of a certain proportion of component gas and diluted gas to mixing it.The control system collects the signal of the gas concentration sensor and compares it with the pre-input set-value.The intelligent PID control is used to adjust the output flow of the flow controller to get the requirements of producing the gas with a given concentration.
出处
《计量与测试技术》
2019年第12期33-38,共6页
Metrology & Measurement Technique
