伺服驱动双活塞气体流量标准装置控制特性的研究

Research on Control Characteristics of Double Piston Gas Flow Standard Device Driven by Servo

伺服驱动双活塞气体流量标准装置是通过伺服电机控制的活塞往复运动,实现连续气体流量输出。该装置是将流量计、压力和温度传感器及编码器等进行整合,通过计算机计算检定参数并显示结果。其中,控制系统是基于PID控制,可确保活塞运动速度的快速、准确、稳定跟踪。实验表明:该装置具有较好地控制精度和稳定性,可实现高精度层流流量计的量值溯源,满足应用需求。

The servo drive double piston gas flow standard device is a reciprocating piston movement controlled by a servo motor to achieve continuous gas flow output.The device integrates the flow meter,pressure and temperature sensor and encoder,calculates the verification parameters by computer and displays the results.Among them,the control system is based on PID control,which can ensure the fast,accurate and stable tracking of the piston movement speed.The experiment shows that the device has better control accuracy and stability,and can realize the value tracing of high precision laminar flow meter,and meet the application requirements.