基于S型曲线误差补偿模型优化蠕动泵微量灌装精度的研究  

Research on Optimizing Micro-filling Accuracy of Peristaltic Pump Based on S-curve Error Compensation Model

作　　者：张冠豪 于源华[1] ZHANG Guanhao;YU Yuanhua(School of Life Science and Technology,Changchun University of Science and Technology,Changchun 130022)

机构地区：[1]长春理工大学生命科学技术学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2023年第6期105-111,共7页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省科技发展计划项目(20220505013ZP)。

摘　　要：针对蠕动泵在微升级灌装过程中误差较大的问题,建立了电机驱动频率与目标容量的关系模型,并针对微升级灌装时出现的脉动和气泡的现象,提出了一种基于S型加减速曲线的误差补偿模型,并将该模型与无误差补偿的梯形加减速、抛物线加减速进行了仿真与实验验证。结果表明:灌装40µL时,相对精度分别提高了72%、57%;灌装100µL时,相对精度分别提高了73%、61%;灌装200µL时,相对精度分别提高了74%、62%,验证了所提方法的正确性和可行性。Aiming at the problem of large errors in the micro-upgrade filling process of peristaltic pumps,a relationship model between motor drive frequency and target volume was established,and an error compensation model based on S-shaped acceleration and deceleration curves was proposed for the phenomenon of pulsation and bubbles during micro-upgrade filling,and the model was simulated and experimentally verified with trapezoidal acceleration and deceleration and parabolic acceleration and deceleration without error compensation.The experimental results show that the relative accuracy is improved by 72%and 57%for filling 40μL,73%and 61%for filling 100μL and 74%and 62%for filling 200μL,respectively,which verifies the correctness and feasibility of the proposed method.

关 键 词：误差补偿 微升级灌装 S型加减速曲线 

分 类 号：TH814[机械工程—仪器科学与技术]