应用于微流控实验平台的流量泵控制系统设计  

The Flow Pump Control System Design Applied to Microfluidic Experimental Platform

作　　者：陆金金 宋永欣[2] 田园 侯桐 LU Jinjin;SONG Yongxin;TIAN Yuan;HOU Tong(College of Marine Electrical Engineering,Dalian Maritime University,Dalian 116026,China;Marine Engineering College,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]大连海事大学船舶电气工程学院,大连116026 [2]大连海事大学轮机工程学院,大连116026

出　　处：《实验科学与技术》2023年第3期50-56,共7页Experiment Science and Technology

基　　金：辽宁省高等教育本科教学改革研究项目(2021-12);教育部产学合作协同育人项目(3141022212)。

摘　　要：微流控芯片作为实验平台,促使复杂的生化实验小型化,具有集成度高、灵敏度高、实验可控度高、便于观察与分析、携带方便等优势。为了实现微流量的精确控制,研制开发了基于STM32的微型流量泵控制系统,该系统可以实现精确到10μL/min的流量控制。系统以STM32为主控芯片,通过I2C总线实现对压电泵驱动芯片DRV2667、差压传感器SDP31的控制,并将流量值在OLED显示屏上显示。整个设备的体积为17.4 cm×13.4 cm×2.7 cm,小巧便于携带。测量结果证明,该系统可以应用于微流控实验设备。Microfluidic chips used as experimental platforms have promoted the miniaturization of complex biochemical experiments,with advantages such as high integration,high sensitivity,high controllability of experiments,easy observation and analysis,and portability.In order to achieve precise control of micro-flow,a micro-flow pump control system based on STM32 was developed.This system can achieve a flow control accuracy of 10μL/min.The system uses STM32 as the main control chip,controls the piezoelectric pump driving chip DRV2667 and the differential pressure sensor SDP31 through the I2C bus,and displays the flow value on the OLED display screen.The entire device has a volume of 17.4 cm×13.4 cm×2.7 cm,making it small and easy to carry.Measurement results have proven that this system can be applied to microfluidic experimental devices.

关 键 词：微流控 流量泵 STM32 微流控实验 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]