Imaginary load method and real load method can be used to test AC sampling measurement device of integrated substation automation.
变电站综合自动化交流采样测量装置可采用虚负荷法和实负荷法检测。
Ac sampling measurement unit has better accuracy and stability as the online measuring instrument of the electrical parameters of power network.
交流采样测量装置作为电网电测量参数的在线测量仪器,具有较好的准确度和稳定性。
Based on statistics character of traffic in a large-scale network, the steady metrics that can estimated network behavior are found and a sampling measurement model is presented in this paper.
基于大规模网络流量的统计特征,寻找能够评价网络行为的稳定测度,并建立抽样测量模型。
This article discusses some issues on the way to estimate erroneous inclusions and omissions, data preparation, and sampling measurement on the basis of the interpretation of the related literatures.
本文在解读有关文献的基础上,讨论了估计错误计数人数和遗漏人数的途径、数据准备以及抽样估计的有关问题。
Finally, after each sampling and cleaning sequence the measurements’ zero point ischecked with a water freeness measurement to make sure the next reading isrepeatable.
最后,在完成每次取样和净化顺序后,必须借助于水游离度测量来校正测量仪器的零点,以确保可以进行下一个读数。
This paper expounds the fundamental principles of vector voltage measurement using a sampling method, and deduces the calculating formula.
本文阐述了用取样技术测量矢量电压的基本原理,推导了计算公式。
Important factors include the sampling rate, the zero point of pressure sensor, and the correct calibration of sensor, the revised program and algorism may improve the precision of measurement.
如实时设定的实际采样率和压力传感器零点、对传感器校准与标定的正确性等诸因素均可影响实测数据的精度。
Modifying the pathway discharge for the surface yard drain containing tritium to allow accurate flow rate measurement and representative sampling.
修改项地面排放含氚的路径以使得流量计量准确和采样更具代表性。
Performs statistical analysis using tools such as: descriptive statistics, measurement system analysis, hypothesis testing, designed experimentation, control chart theory, acceptance sampling, etc.
运行以下工具进行统计分析:如描述性统计、测量系统的分析、假设检验、设计实验,控制理论图、验收抽样等。
First, you need to figure out how to set the sampling rate, or how often your computer takes a measurement.
第一,你需要知道如何设定采样率,或计算机每隔多长时间进行一次测量。
Distance between dots should be uniform in the field measurement. Sampling number should be estimated by certain believe level, estimate accuracy and variance coefficient.
田间测墒时,点与点之间的距离要均匀,取样数目可以根据一定的置信水平、估值精度、变异系数做估算。
Software synchronous sampling is widely employed in periodic signal measurement, but measurement errors occur very commonly.
周期信号测量中广泛采用软件同步采样测量方法,其测量误差普遍存在。
Sampling strategy, measurement errors and measured contour form features are all related to the uncertainty analysis for dimension, position and form error estimated.
轮廓的尺寸量、位置量以及形状误差估计值的不确定度与测量误差、被测轮廓的形状特征以及采样策略等有关。
Using over sampling technology in software the accuracy of temperature measurement is increased.
同时在软件上利用过采样技术提高温度测量的精度。
Sampling physical parameter is inactive power which has functions of harmonic measurement and protection.
取样物理量为无功功率,具有谐波测量及保护功能。
Analog and digital leading industry sampling rate combination allows each channel and multi channel measurement comprehensive analysis.
行业领先的模拟和数字采样率组合允许逐通道全面分析和多通路测量。
The time interval of image sampling should be shortened to increase the measurement ranges for higher shearing distortion flows.
对于强剪切变形流动,可以通过设定较小的图像采样时间间隔以提高测量范围。
Use the unique digital reflection sampling technique, and special conveying belt, measurement accuracy of the finished product level.
采用独特的数码反射采样技术,及特殊的输送皮带,测量精度达到成品级。
The larger sampling spacing is advantageous to enhance the measurement and data processing efficiencies for near field antenna measurements.
近场天线测量中,采用大的采样间隔,有利于提高测试和数据处理的效率。
A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.
提出了一种能有效地抑制由非同步采样引起的有功功率及功率因数的测量误差的加权算法。
Synchronous sampling by software is commonly used in digital measurement of periodic electric signals.
软件同步采样是周期电气信号测量中最常用的采样方式。
The solution for linking twice sampling cycles, enhancing resolution of measurement of rotating speed, isolating and processing keying phase signal, are investigated.
探讨了两次采样循环之间的衔接、提高转速测量分辨率、键相位信号的隔离和预处理等问题的解决方案。
By using the ratio sampling technology, the measurement accuracy can be improved to the extent that the performance of components is kept unchanged.
通过采用比率采样技术,在保持元件性能不变的前提下,可提高测量精度。
The errors of harmonic wave analysis and direct sampling in electric parameters measurement are analyzed. The method to minimize errors is presented.
分析了电力参数微机监测中的直接采样计算法与谐波分析法的误差,并提出了减小误差的方法。
Using this sensor as walking speed sampling sensor, this paper develops the measurement module of walking speed based on AT89C51 singlechip.
论文以该传感器为步速采样传感器,研制出基于AT89C51单片机的步速测量模块。
In the whole measurement process, the near field data sampling is a very important but the most time-consuming phase.
在整个测量过程中,近场数据的采集是最为耗时的一个重要环节。
In this paper, it is introduced to the influence of cavitation factor, measurement taps, sampling frequency and sampling time on the test result in pressure fluctuation test of the water turbine.
介绍了水轮机压力脉动试验时空化系数、测量位置及测点、信号采样频率及采样时间等因素对试验结果的影响。
The two mixed sampling algorithms was proposed for power measurement.
提出了模拟数字混合采样功率测量的两种算法。
An AC power converter that based on a novel mixed sampling method, the principle of the sampling power measurement, and the power measurement algorithm and its measurement errors are described.
提出了一种混合采样的交流功率转换器,叙述了该种采样功率测量的原理,推导了功率测量的算法和功率测量误差。
By comparing SG changes of both frozen tissue samples and fresh samples it is to determine the sampling methods' effect on measurement of specific gravity of tissue.
通过比较冷冻后采样和低温直接采样脑组织比重的变化,比较采样方法对于测量结果的影响。
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