数字万用表

HP-36B型数字万用表的原理与维修

Principle and Maintenance of HP-36B Type DMM

数字万用表（DMM）只能测量直流和几十到几百赫兹的低频正弦信号幅度，不能测量高频信号和信号的频率。

On usual DMM only can measure signal 's amplitude of DC and AC from fifty to five hundred Hz , it can not measure signal 's frequency or amplitude of high frequency .

基于DSP的高精度数字万用表研究

Research on the High Precision Digital Multimeter Based on DSP

数字万用表h（FE）测试性能改进

Improvements in Test Properties of Digital Multimeter h_FE

基于CPLD和单片机实现高精度数字万用表

Based on the CPLD and the Single Slice Computer to Realize High Accuracy Numeric Multimeter

通过扫描电镜、激光Raman、数字万用表对薄膜结构和性质进行分析。

The film structure and the property were detected by the scanning electricity microscopy , Raman spectrum and the digital multitester .

检测LCM对数字万用表准确度的要求

A Requirement of Digital Multimeters ' Accuracy for Inspecting Liquid Crystal Modules

数据采集系统硬件由采集控制单元、数字万用表、计算机和直流电源组成；系统软件是基于Visualc++6.0的程序。

The hardware of the system consists of sampling control unit , digital multimeter , computer and power source , and the software of the system is developed based on Visual C + + 6.0 .

激光能量计信号输入到数字万用表，数字万用表通过RS232总线与微机通讯；

Signal from laser energy meter is imported into digital multimeter , which is linked with computer via RS232 bus .

该接口实现了与数字万用表的连接，可以与任何具有IEEE-488接口的仪器相连接。

It had been connected to a digital multimeter successfully , and can be used to connect any instrument equipped IEEE-488 interface .

该方案对测量10Ω以下的小值电阻和20MΩ以上的高值电阻有较高的精度和分辨率，拓展了常规数字万用表的电阻测量范围，有较好的实际应用价值。

This method can be used to measure the numerical value of resistance below 10 Ω and above 20M Ω with relatively high precision and resolution ratio . It is of practical applicable value for the method has extended the measurement range of the conventional digital multimeter .

然后利用理论研究的结论设计了以TMS320VC5502为核心处理器的高精度数字万用表测量系统，包括硬件设计和软件设计。

After method study , We design the measurement system of the high precision digital multimeter based on the digital signal processor ( TMS320VC5502 ) with low power consumption .

一种增强数字万用表功能的高频电压测量电路

A High Frequency Voltage Measurement Circuit for Increasing Function of Multimeter

袖珍式数字万用表的构成及常见故障处理

The Composition and Usual Malfunction Disposal of Pocket-size Digital Multimeter

虚拟电子测试平台数字万用表的研制

The Development of Virtual Electronic Test Platform for Digital Multimeter

一种用数字万用表测量电感的方法

One kind measures the method of the inductance with digital universal meter

台式41/2位数字万用表故障分析方法

Analysis on the Failures of 41 / 2 Digit Bench-Type Digital Multimeter

数字万用表的常用电路简介及检修

Brief Introduction of Circuit Principle and Repair of Digital Multimeter

数字万用表测电阻功能扩展研究

On the Function Expansion of Digital Multimeter in Measuring Resistance

在线测试数字万用表的设计

Design of Digital Multimeter for Used on line Measurement

我还看到一个实验室通过互联网来校准高级数字万用表。

I also visited a lab that calibrates high-end DMMs using the Internet .

自动换量限的数字万用表自动量程转换电路设计

Digital Multimeters of Auto-range Design of Automatic Range-changing Circuit

一种数字万用表的自动计量检定系统

An Automatic Measurement and Verification System for Digital Multimeter

使用数字万用表巡检功能对基站电信号进行监测

Detecting the Base Station Signal by Using Digital Oscillograph

基于LabWindows/CVI的数字万用表远程控制

Digital Multi-meter Remote Control Based on LabWindows / CVI

50000字手持数字万用表的研究与设计

Design and Research of 50000 Words Handheld Digital Multimeter

数字万用表测量电容功能的扩展

Function Expansion of Digital Multimeter in Measuring Capacity

数字万用表故障检测与排除的实用方法

Diagnosis and trouble shooting method for digital multimeter

5位半台式数字万用表的研究与设计

Research and Design of 5.5 Bit Digital Multimeter

数字万用表电导型附加器设计

Designing Conductance Adapter for the Digital Multimeter