介绍将电压、电流、电阻归一化测量的自动量程转换电路及主要软件流程。
This paper introduces the automatic range conversion circuit of voltage, current and resistance normalized measure and the working process of software.
该仪器具有测量精度高，自动量程切换，电导率值直读显示，操作简单等优点。
The instrument has high measurement accuracy, automatic switching range, the conductivity value of direct reading, the advantages of simple operation.
内部的自动量程数字多用表直接测量11种不同功能，而无需昂贵的外部信号调整。
The internal automatic range digital multi meter directly measure 11 kinds of different functions, without the need of expensive external signal adjustment.
介绍了双积分式A/D转换器CC1 44 3 3在宽范围电压测量中自动量程转换电路的设计及工作原理。
The design and the work principle of automatic range-changing circuit of dual-integral A/D converting chip CC14433 in voltage measuring of wide range are introduced.
如果可能的话，不要使用偏置补偿(脉冲电流)。因为对脉冲电流的感抗可能会使测量不稳定，或者使自动量程功能难于工作。
If possible, do not use offset compensation (pulsed current) because inductive reaction to the current pulse may cause unstable measurements or make autoranging difficult.
本电参数测试仪通过AT 89 C51单片机作为核心的控制元件，由模拟开关hcf 4051构成自动量程数字万用表。
Abstrct: the electrical parameters Tester through AT89C51 SCM as a core element of control by the analog switch HCF4051 constitute a range digital multimeter.
提出一种自动量程切换电压测量系统的设计方法，该系统基于程控增益放大器器件，使用单片机控制其增益实现量程的自动切换。
It presents a system of voltage measurement with self-scale, based on the program control amplifier controlled by the single chip computer.
提出一种自动量程切换电压测量系统的设计方法，该系统基于程控增益放大器器件，使用单片机控制其增益实现量程的自动切换。
It presents a system of voltage measurement with self-scale, based on the program control amplifier controlled by the single chip computer.
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