智能型通用数字显示仪的设计方法

A Design on Intelligent Universal Digital Displaying Instrument

文中介绍了一种智能型通用数字显示仪的设计方法,详细分析了各种温度传感器的输入电路、程控放大器、A/D转换、软件线性化、热电偶冷端温度补偿方法、上下限报警以及标准电流信号输出和串行口输出等的实现过程。该显示仪能满足绝大多数信号测量的要求。

This paper gives a method on intelligent universal digital displaying Instrument design. It gives the realization of input circuit on all kinds of temperature sensors, soft -controlling amplifier, analog signals to digital signals transformer, soft -linear, the method on cool therminal compensation of thermocouple, higher/lower limit alarming and standard current signal output as well as the serial port output. The instrument can fulfil the measuring demand of almost every signal.