土壤检测领域压力控制器的设计与开发  

Development and Research on Pressure Controller for Soil Testing

作　　者：杨霞[1] 

机构地区：[1]长安大学信息工程学院,陕西西安710064

出　　处：《现代电子技术》2007年第14期55-57,60,共4页Modern Electronics Technique

摘　　要：设计实现了一个应用于土壤力学试验中三轴仪测试系统的压力控制器,选用瑞萨M16C62P系列单片机作为控制器,步进电机与螺杆驱动活塞从而改变压力缸中的压力,压力值调节通过闭环控制实现,体积变化量由步进电机步进计数计算得到,特别是串行通讯的设计使用户可以通过上位机的友好界面对压力控制器进行控制和数据记录。In this thesis,the digital pressure controller, which can be used in all the tri- axial testing systems in the commercial and teaching soil mechanics laboratories,is designed and developed, M16C62P by Renesas Technology Corp. ,is selected as the core processing chip in this system. In the developed system,a stepping motor and screw- drive actuate a piston that directly pressurizes de - aerated water in the pressure cylinder. The pressure is regulated under closed - loop control. The change in volume is measured by counting the steps to the stepping motor. Especially, the serial communication gives users the friendly interface to operate the pressure controller.

关 键 词：压力控制器 土壤检测 闭环系统 串口通讯 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]