微量液体的高速精确加样技术  

High-speed and Accurate Sampling of Trace Liquid

作　　者：和发展 杨伟 闫慧敏 赵鹏 王超 HE Fa-zhan;YANG Wei;YAN Hui-min;ZHAO Peng;WANG Chao(Autobio Labtec Instruments Co.,Ltd.,Zhengzhou,Henan 450016)

机构地区：[1]安图实验仪器(郑州)有限公司,河南郑州450016

出　　处：《液压与气动》2023年第8期182-188,共7页Chinese Hydraulics & Pneumatics

摘　　要：为了提升微量液体的加样性能,以液体的高速精确加样为研究对象,建立了加样系统的流体动力学模型,分析了影响微量液体加样的影响因素。采用仿真与实验相结合的验证方法,研究了微量液体高速加样的力学特性。研究结果表明:随着加样针注液加速度的增大,加样系统的精确性与稳定性变化较大,加速度参数对系统的可靠性影响显著;合理的选择加样针的内径,有助于提高加样系统的动态稳定特性;合理的选取加速度参数与加样针内径,有助于提升加样系统的加样效率。For the purpose of improving the sampling performance of trace liquid,establishing the sampling system model and calculating the influencing factors.The fluid simulations and experiments is used to analyze the mechanical characteristics of the trace liquid in the process of high-speed sampling addition.The results show that the accuracy and stability change greatly with the increase of the acceleration of pumping liquid,and the acceleration have a significant influence on the reliability of the system.A reasonable selection of inner diamete can improve the dynamic characteristics of sampling system.At the same time,optimizing the acceleration and the inner diamete is helpful to improve the efficiency of sample addition system.

关 键 词：高速加样 影响因子 精确性与稳定性 仿真与实验 

分 类 号：TH137[机械工程—机械制造及自动化]