摘要
针对力学实验或生产加工的实际功能需求,以高性能单片机STC89C52RC为核心设计开发了1套电子引伸计微机数据采集系统。系统硬件电路以高精度斩波稳零型运算放大器TLC2652为信号放大芯片、以16位Σ-Δ型A/D转换芯片AD7705为模数转换器件,下位单片机程序采用Keil C51进行编写,系统上位机软件应用VB进行设计和开发。全套系统造价低、体积小、便携性好,测试实验表明该系统检测精度高、实时性好,能满足力学性能实验和生产加工现场的实际功能需求,具有较大的应用价值。
According to the actual function requirement of the mechanics experiment or the production processing,a data acquisition system for an electronic extensometer is designed with a high-performance single chip microcomputer,STC89C52RC.A high-precision dc chopper steady zero type operational amplifier,TLC2652 is used as the amplification chip.A 16 bits Σ-Δ A/D conversion chip,AD7705 is used as A/D conversion device.Keil C51 is used to compile the program of the single chip microcomputer,VB is used to design and develop the software of the upper computer.The cost of the system is low,the volume of the system is small,and the portability of the system is good.The test experiment result shows that the system has a high accuracy a good real-time performance,the system is suitable to the practical function requirement of the mechanics performance experiment the production processing site,and the system has a great application value.
出处
《电子测量技术》
2011年第3期128-131,共4页
Electronic Measurement Technology
关键词
电子引伸计
数据采集系统
电路设计
软件开发
electronic extensometer
data acquisition system
circuit design
software development
