Control Design of the Micro-Flow Liquid Feeding System in the Drop Analyzer

被引：0

作者：

Song Qing ^{[1
]}

Mao Xuefei ^{[1
]}

Yang Lu ^{[1
]}

Meng Gaojie ^{[1
]}

Du Danqing ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Automat Sch, Beijing 100088, Peoples R China

来源：

FRONTIERS OF MECHANICAL ENGINEERING AND MATERIALS ENGINEERING II, PTS 1 AND 2 | 2014年 / 457-458卷

关键词：

Drop analyzer; Stepper motor; Subdivision driver; Software design; Control circuit;

D O I：

10.4028/www.scientific.net/AMM.457-458.905

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In order to solve the problem of inconvenience for integration and operation complexity, the micro-flow fluid supply system based on STC12 series MCU is presented and implemented. STC12 has many advantages such as ultra-low power consumption, rich chip designs, high performance cost ratio, high speed, etc. The feeding system mainly consists of mechanical parts, a miniature stepper motor, a micro-stepping driver, MCU and its control circuit. The software program is written by PC to manage the feeding process of the start-stop, rotation direction, acceleration and deceleration of the motor. Both the flow rate and the flow flux can be controlled precisely and flexibly, so as to ensure that the test liquid is slowly delivered under quasi-equilibrium condition to shape into a satiated and uniform drop.

引用

页码：905 / 909

页数：5