数字多用表

恒流源在高精度数字多用表中的设计与实现

Design and Realization of Constant Current Source in the High-Precision DMM

高精度数字多用表作为时域测试中应用广泛的测试仪器之一，除了能进行普通测量外，还能满足对测试精度要求苛刻的场合。

As a multifunctional time domain test instrument , high-precision DMM ( Digital Multi-Meter ) can not only meet the ordinary measurement requirements , but also be suitable for high accuracy demanding test situations .

使用Access数据库实现对不同型号数字多用表的自动测试软件

The Program of Measurement Multimeters with Access

三点Delta测量方法在6·5位数字多用表中的应用

Application of Three-point Delta Method in 6.5 Digit Multimeter

针对6.5位数字多用表的电阻测量问题展开了测量方法的讨论，介绍了一种新的测量方法即三点Delta法；

The methods of resistance measurement are discussed against 6.5 digit multimeter . A new measurement method , that is three-point delta method , is introduced .

有些数字多用表（DMM）提供了内置偏移补偿功能。

Some DMMs provide a built-in offset compensation capability .

本设计对国内研究和开发数字多用表VXI模块，发展我国自己的VXI产品，满足国内需求，具有重要意义。

The research is advanced in domestic measure field . Therefore , it is of great practical significance to develop VXIbus products and satisfy domestic needs in our country .

典型的寿命测试系统包括一台通信分析仪、电源、一个手机控制器、音频测试仪器和一台数字多用表（DMM）。

A typical lifetime test system includes a communication analyzer , power supplies , a handset controller , audio test instruments , and a DMM .

结果表明，LXI数字多用表功能和各项技术指标符合设计要求。

It is proved by results that the functions and technical indexs of the DMM all meet the system requirements .

简述数字多用表自动校准检定系统的组成，多种功能和系统软硬件的设计特点，并以HP34401A为例说明DMM的自动检定程序流程。

Describes constitution , functions , hardware and software feature of automatic calibration / verification system for multimeter some details on HP 34401A 's automatic verification .

研究了GPIB仪器控制技术，编写了数据采集软件，利用带有GPIB接口卡的个人电脑以及两个型号为HP34401A的惠普数字多用表，建成一个自动化快速测量系统；

We also have studied the technology to control GPIB instruments and have established data acquisition system include a personal computer with a GPIB board , two HP 34401A digital multimeters and a control software programming with C + + .

首先分析了心脑电图机检定仪定标电压的测量要求，在此基础上分析了用六位半数字多用表34401A测量定标电压的可行性，并给出了测量方法。

Firstly , this article analyzes the requirement of the standard voltage for the ECG & EEG verification instrument . Then it analyzes the feasibility of measurement using 34401A multimeter and provides the test method .

数字多用表检定技术能力比对的不确定度评定

Evaluation of Uncertainty of Measurement on Comparison of Multimeters Verification Ability

智能测量仪器的自动化校准&34401A数字多用表自动校准系统

Auto-calibration of intelligent instrument & 34401A Digital multimeter auto-calibration system

利用2次采样A/D转换技术实现的数字多用表

Use twice sampling A / D change technique to realize digital multimeter instrument

高精度数字多用表的测量不确定度评定与分析

High Precision Digital Multimeters and Evaluation of Uncertainty Analysis

7150数字多用表的自动测试研究

The Research of Automatic Measurement for 7150 Digital Multimeter

数字多用表电容测量功能快速检定程序设计

Design of the Rapid Testing Program for Capacitance Measuring Function from Digital Multimeter

数字多用表由于准确度高，功能多而广泛使用。

Digital Multimeters are widely used because it has high accuracy and many functions .

数字多用表自动校准检定系统

Automatic calibration / verification system for digital multimeter

1281型数字多用表测量交直流伏特表测量结果不确定度分析

Uncertainty Analysis of Measurement for Measuring AC and DC Voltages Meter by 1281 Digital Multimeter

数字多用表校准注意事项

Points for Attention in Calibrating Digital Multimeter

GB/T15637-1995数字多用表校准仪通用技术条件

Generic specification for calibrator of digital multimeter

GB/T13978-1992数字多用表通用技术条件

Generic specification for digital multimeters

采用可编程电源、5.5位数字多用表、电流切换电路，实现接触电阻的精确测量。

Using Programmable power supply and 5.5-digit multimeter and current switching circuit achieve accurate measurement of contact resistance .

在航天发射试验任务中，手持式数字多用表仍是目前主要的电量测量工具。

In the mission of spaceship launch test , the hand-held digital multimeter is still a major electricity measurement tool .

以数字多用表为控制对象，介绍了一个自动测试系统实例，给出了测试程序流程图，分析了粗差数据的处理方法以及故障诊断的方法。

Regarding digital multimeters as controlling objects , gives an instance of Auto-test System . Analyses testing program flow-chart , eliminating of rude error data and fault diagnosis methods .

本文介绍一种利用高压高阻测量仪的电压比率标准与数字多用表测量直流高压电源的校准方法。

This text introduce a verified method of direct current high voltage supply source making use of digit multimeter and voltage ratio standard in high voltage and high resistance measure instrument .

基于智能校准技术的数字多用表可以完成交流直流电压、电流的测量，也可以测量电阻、周期和频率，可以自动对测得的数据进行误差修正。

The measurement for AC & DC voltage and current , resistance period and frequency can be accomplished by using the digital multimeter based on intelligent calibration technique . The error of measured data can also be automatically revised .

围绕多用表的硬件系统设计展开研究，重点讨论了数字多用表硬件设计的总体方案，多用表测量电路的设计，数据采集存储与控制电路的设计。

This dissertation focus on the hardware design of DMM , discusses design of the whole scheme of DMM , the parameters ' conversion and signal conditioning circuit design , the data acquisition & storage and control circuit design .