英德
有道
百度
谷歌
图片
维基
百科
微分测量 [wēi fēn cè liáng]
differential measurement
- 介绍一种新的数值方法，并用于平面电磁场离散测量数据的再现与微分。
A new numerical method is presented for represent ing and differentiati ng discrete electromagnetic field data measured. - 摘要运用地面点电流源电场的分布规律和高密度电阻率法的基本思想，提出了分别利用单极供电、偶极子供电，其馀电极同时测量，通过室内数据整理实现高密度电阻率法的温纳对称四机、温纳偶极、温纳微分、温纳三极A、温极三极B和二极等装置。
According to basic theories for distributing regular of electric field about surface single spot current source and high density resistivity prospecting method in this paper. put forward an installation which use one current electrode or dipole current electrodes and the others prospecting at the same time to realize high density resistivity method by office date processing, such as wenner pole-dipole A, wenner pole-dipole B, Wenner Alpha, Wenner Beta, Wenner Gamma and pole-pole array. - 文摘:本文提出了具有量化误差、非线性误差和微分非线性误差的A/D转换器的数学模型，在该数学模型的基础上，仿真分析了非同步采样法、准同步采样递推算法各种情况下的误差，包括功率测量中电压线性、电流线性、相位变化误差及电压测量的误差。
Abstract: The paper proposes a mathematical model of A/D converter with quantizing error, nonlinearity and differential nonlinearity errors for computer simulation, and based on the model, the errors caused by voltage change, current change and phase change in the power measurement are analyzed by computer simulation for both the asynchronous and quasi-synchronous sampling algorithms.
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