dmm

Principle and Maintenance of HP-36B Type DMM

HP-36B型数字万用表的原理与维修

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 .

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。

Circuit Design and Implement of DMM 's Measurement Function Expansion

DMM测量功能扩展电路

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

恒流源在高精度数字多用表中的设计与实现

By circuit design DMM can measure function signal 's RMS and frequency .

进行电路设计，使DMM能测量出较高频率函数信号的有效值和频率。

A Study on Diesel - DMM Mixed Fuel Spray by Particle Dynamics Analysis

柴油-甲缩醛混合燃料喷雾的粒子动态分析研究

Obviously increased protein oxidation was also observed in OA mice model induced by DMM .

我们同样也在DMM诱发OA的小鼠模型中发现关节软骨细胞内蛋白质氧化程度显著升高的现象。

FEM analysis of embankment foundation improved by DMM pile under multi-stage loading

分级加载条件下粉喷桩加固路基有限元分析

The dynamic consolidation and deep mixing method ( DMM ) are very common in project construction .

其中强夯法和深层搅拌法是工程建设中较常用的加固方法。

When DMM is added to diesel fuel , design changes should be made to the fuel supply system .

柴油机采用甲缩醛作燃油添加剂时，需改造燃油系统。

Study of controllable premixed combustion in Diesel Engine Fueled with DMM

DMM燃料柴油机可控预混合燃烧的研究

The details are as follows : ( 1 ) DMM measurement and signal conditioning circuit design .

具体内容如下：（1）多用表测量电路设计。

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

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。

The DMM then calculates the resistance automatically .

然后DMM自动计算电阻。

The accomplishment of Digital Multi-Meter ( DMM ) module .

万用表（DMM）功能模块的设计与实现。

Our company hired a rock-climbing athlete to be responsible for the sales of DMM in China .

今天，我们公司聘请了一个专业的攀岩攀冰高手，专门负责DMM产品在中国的推广工作。

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

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 new approach to determining the thermomechanical parameters of forging processes is proposed based on the dissipative structure theory and the dynamic material model ( DMM ) .

在耗散结构理论和DMM方法的基础上，提出一种确定锻造热力参数范围的方法，以获得组织和性能稳定一致的锻件。

Design of Multi-functional DMM

多功能DMM设计

For the hand-held DMM , with no I / O interface , the paper describes in detail three kinds of semi-automatic verification programs .

对于手持式的、无I/O程控接口的数字万用表，介绍了三种半自动检定程序设计方法。

However , the traditional measuring instruments such as DSO , DMM , Logic Analyzer have only focus on a certain number of signal or electrical parameters .

然而，传统的测量仪器如示波器，万用表，逻辑分析仪等都只是针对某一些信号或者电参数的测量。

However , for near targets , K-CDM has the problem of range blurring , then direct measurement method ( DMM ) is used instead the higher SNR and the clear summit .

对于近程目标采用K系数分配法会产生测距模糊问题，但近程信噪比较高，相关峰明显，可以较准确地找到峰值的位置，利用直接测量法进行时延估计。

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 .

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。

By adopting the technologies above , it is feasible to integrate frequency response measurement , TDR measurement , noise measurement , discrete multiple tone frequency modulation , DMM and all other functions in one instrument .

使得在一台仪表内综合了频响测量、时域反射测量、噪声测量、离散多音频调制测量和DMM测量等功能。

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 .

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。

Comparisons were made on the results of a single cement-soil DMM pile ( 14 . 5m long ) load test , a single-pile composite foundation load test and a multi-pile composite foundation load test .

通过对14.5m长的水泥土搅拌桩单桩、单桩复合地基以及多桩复合地基载荷试验结果进行对比，研究水泥土桩与软土形成的复合地基的承载力性状和破坏模式。

Compared with other DMMs , first fit DMM using address-ordered linear list data structure is the most researched and applied , since it tends to enhance program locality , and causes significantly less fragmentation .

在理论研究和实际应用中，按地址有序首次匹配线性表结构的DMM由于其有利于增强程序局部性，显著地减少内存碎片，因而得到广泛的关注。

The results show that The premixed combustion by DMM fuel port injection exhibits substantial reduction of NOx and smoke emissions simultaneously , which may possible develop into a technique for controlling diesel engine exhaust emissions .

试验结果表明，进气道喷射DMM的预混合燃烧能同时大幅降低NOx和碳烟排放，为降低柴油机有害排放提供了一种新途径。

In distributed memory multiprocessor ( DMM ) systems , the communication overhead involved among different processors is still not trivial for medium / fine granularity parallel programs which even offsets the advantages brought by multiprocessor parallelism .

在分布式内存多处理机系统上，对于中、细粒度并行程序而言，不同处理机之间的通信开销在整个程序的执行时间中所占的比重仍然很大，有时可能会抵消多处理机并行所带来的好处。

Conventional Distribution Mean Method ( DMM ) used to analyze simulation output data of a DEDS system is prone to the effects of initial conditions or man-induced factors . Therefore , an improved DMM based on weighted processing is proposed .

针对传统离散事件系统（DEDS）仿真输出数据分析方法中批均值法易受初始状态和人为因素影响的缺点，提出了加权处理改进批均值法。