CAJ | 학술논문

设计了混凝土冻融试验机及监控系统.下位机由控制器、温度传感器、开关控制电路以及电源监控电路组成,其中 ATmega32 控制器负责信息的采集,并通过串口与上位机通信.上位机软件基于 LabWindows/CVI 平台开发,可实现温度信息及电源信息的实时采集与处理、数据存储及历史查询等功能.系统根据上位机设定的冻融循环次数对混凝土试件进行冻融破坏实验,根据结果可确定混凝土的抗冻等级.采用混凝土标准件进行实验,验证了系统的可靠性.
설계료혼응토동융시험궤급감공계통.하위궤유공제기、온도전감기、개관공제전로이급전원감공전로조성,기중 ATmega32 공제기부책신식적채집,병통과천구여상위궤통신.상위궤연건기우 LabWindows/CVI 평태개발,가실현온도신식급전원신식적실시채집여처리、수거존저급역사사순등공능.계통근거상위궤설정적동융순배차수대혼응토시건진행동융파배실험,근거결과가학정혼응토적항동등급.채용혼응토표준건진행실험,험증료계통적가고성.
A concrete freeze-thaw testing machine and its monitoring system weredesigned based on virtual instrument technology and micro controller technology. The lower machine was constructed with a micro controller,temperature sensors,switches,circuit and power supply monitoring circuit. The central controller ATmega32 can collect information and communicate with the upper monitor through a serial port. LabWindows/CVI was used to develop virtual instrument that can collect and process temperature information and power information in time. The upper monitor can also store historical data but with the capacity of data query. The system can carry out freeze-thaw damage tests on concrete specimens based onthe number of the freeze-thaw cycle set in the upper monitor. After the tests,the freeze level of concrete specimens can be deter-mined against the national testing standards.