用于三维微流控芯片阳模制备的成型装置控制系统设计
成型装置系统机械结构部分包括工作台、步进电机及其驱动器，硬件电路包括下位机核心板及串口通信电路，软件部分包括上位机人机界面软件和下位机核心板及步进电机的驱动程序。采用PC机与单片机联机运行的工作方式，两者通过RS-232串行通信进行数据传输。PC机用于系统的数据处理；单片机用于响应PC机的各种控制命令，对步进电机驱动器发出命令，驱动步进电机运行，以实现成型装置系统用于微流控芯片阳模制备的功能。
关键词 微流控芯片 阳模 成型装置系统 单片机 串口通信
毕业论文设计说明书外文摘要
Title The control system design for the fabrication of the three-dimensional mold of the microfluidic device
Abstract
Microfluidic devices are fabricated with a micro processing technology on various substrates such as silicon, glass and polymers to realize the functions of chemical and biological analysis. The microfludic device based on the MEMS processing technology is an important member of the micro total analysis system. To meet the requirements of the fabrication technology for the microfulidic device mold, a control system for the fabrication of the three-dimensional mold of the microfluidic device has been designed.
The mechanical structure of the system includes a working stage, stepper motors and drivers.The hardware includes a SCM (Single Chip Microcomputer) and a serial communication circuit.The software includes a human-computer interaction interface and a 3 stage stepper motor driver program .The PC and the SCM cooperate online, and all the data transmission is via RS-232 serial communication. PC is used for data processing and microarray image simulation and SCM is used to respond to the PC control commands, give an order to drive a stepper motor running to achieve the movement of the gene chip microarray.
Keywords: microfludic device mold a control system for the fabrication SCM serial communication
目 次
1 绪论 1
1.1微流控芯片技术 1
1.2.微流控芯片制备技术 2
1.2.1制备材料 2
1.2.2 PDMS微流控芯片制备方法 2
1.2.3基于液滴微喷射的微流控芯片制作技术 3
1.3 成型装置系统 4
1.4 研究内容 4
2 成型装置系统总体方案设计 6
2.1 方案设计 6
2.2 设计指标 6
2.3 硬件构成 7
2.3.1 上位机 7
2.3.2 下位机核心板 8
2.3.3 步进电机驱动器 8
2.4 坐标系的确定 8
2.5 本章小结 8
3 成型装置系统机械结构设计 9
3.1 机械结构总体设计 9
3.1.1 机械结构的设计方案 9
3.1.2 机械结构的设计参数 9
3.2 成型装置系统工作台设计 9
3.2.1 工作台的设计原理 9
3.2.2 设计指标 9
3.2.3 步进电机的选择 10