In this paper, an efficient technique of harmonic measurement in power system is presented.
介绍了一种高效的电力系统谐波检测方法。
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。
Simulating low pass filter is adopted to reduce the spectrum alias and improve the speed of harmonic measurement.
采用模拟低通滤波器降低频谱混叠，提高谐波检测的实时性。
The mathematical model of gas concentration harmonic measurement is built up. The result of methane concentration is also shown.
建立了谐波检测的数学模型，给出了甲烷气体的测量结果。
Using DFB LD as light source, the detection sensitivity has been greatly improved by light source modulation harmonic measurement.
采用分布反馈式半导体激光器作为光源，通过光源调制实现气体体积分数的谐波检测，显著提高了检测的灵敏度。
Although FFT is the efficient approach in harmonic measurement fields, it results in spectral leakage, which affects the accuracy of measurement.
FFT是谐波测量中使用最广的方法之一，但利用其进行测量时存在着频谱泄漏，影响测量结果准确性。
Difference absorption measurement and wavelength modulation harmonic measurement are two fundamental approaches for gas light absorption detection.
差分吸收检测和波长调制谐波检测是气体光吸收检测的两种基本方法。
Spectral leakage caused by synchronous error in no-synchronous sampling is an important reason, which reduces the accuracy of spectral analysis and harmonic measurement.
采样不同步产生的同步误差是造成频谱泄漏和影响谐波分析准确性、检测精度的重要原因。
Simulation of the CVT's harmonic measurement distortion, and analyze the sensitivity of the main components parameters use of the steady-state circuit were conducted in the thesis.
本文仿真分析了CVT的谐波丈量畸变原理，并对其稳态电路进行了主要元件参数的灵敏度分析。
Harmonic detection is the important part of harmonic issue and harmonic detection method is the key of harmonic measurement. This paper primarily studies the harmonic detection methods.
谐波测量方法是谐波测量的核心环节，本文对谐波测量方法进行了研究分析。
Based on the measurement of the contact Angle of differently treated ITO, the surface energy and polarity were calculated using the harmonic mean method.
在测量ito接触角的基础上，应用调和平均法计算了不同表面处理ITO阳极的表面能和极性度。
To compensate of the nonlinearity error of heterodyne interferometers in nanometer measurement, a method for reducing the first harmonic nonlinearity is proposed.
为了补偿激光外差干涉纳米测量中的非线性误差，提出了一种减小非线性误差的一次谐波方法。
In this paper, the meanings of dynamic range and total harmonic distortion of digital recording system and their measurement principles are discussed.
本文讨论了数字录放音系统的动态范围和总谐波失真的意义及其测量原理。
Objective: To evaluate the effect of the tissue harmonic imaging (THI) on image quality and construction measurement.
目的：探讨组织谐波成像技术(THI)对图像质量及结构测量值的影响。
Its measurement signal is to lead into harmonic signal digital measurement analysis system via ta end screen voltage signal amplifier.
其测量信号是经过TA末屏电压信号放大器引入谐波信号数字测量分析系统的。
Harmonic measure method is the key of the measurement. In this paper, the harmonic measure method which based on the multiple frequency rotate transform theory is researched and analyzed.
谐波测量方法是谐波测量的核心环节，本文对基于倍频旋转变换理论的谐波测量方法进行了研究分析。
This paper introduces the electric parameter metering system based on digital signal processor (DSP) and a digital signal processing algorithm for the harmonic power measurement.
介绍了谐波功率测量的数字信号处理算法以及一种基于DSP技术的多功能电参量测量仪的系统设计。
The study of harmonics is a very important topic for electric power quality. Research topics include harmonic source analysis and efforts, measurement technology and elimination strategy.
谐波的研究是电能质量领域的一个重要课题，研究领域包括谐波源分析、检测技术以及消除策略。
Theoretic analysis and field measurement results indicate that the consumer watt hour should not be the energy consumed actually but the fundamental energy in consideration of harmonic energy loss.
理论分析和现场实测结果表明，考虑到电网谐波能耗时，所有电力用户的计费电量应是该用户从电网吸收的基波电能量，而不应是用户实际消耗的电能量。
The accuracy of the dielectric loss measurement based on harmonic analysis algorithm is greatly influenced by the frequency fluctuation.
用谐波分析法进行介损测量时，很容易受到系统频率波动的影响，从而降低测量的准确度。
The results indicate that the measurement accuracy of elementary items is better than class 0.2 and harmonic analysis is correct, so it's a good basis to three phases system.
试验表明，单相系统的基本电量的测量精度优于0.2级，谐波分析正确，为三相系统打下良好的基础。
Hanning windowed interpolation harmonic analysis algorithm and high-order sine fitting algorithm are the two effective algorithms for dielectric loss Angle measurement.
加汉宁窗谐波分析法和高阶正弦拟合法是介损角测量的两种有效算法，对两种算法的分析和比较有利于它们在实际中的应用。
After studying on the measurement principle of power system harmonic based on FFT theory, this paper presents a high-accuracy method based on phase difference correcting to measure the harmonic.
研究了基于FFT理论的电力谐波检测原理，提出一种基于相位差校正法的高精度电力谐波检测方法。
This thesis systematically introduces the methods of measurement and analysis on ship electronic power system harmonic, and gets some conclusions.
本文就船舶电力系统谐波的检测与分析方法做了系统介绍，并得出了一些结论。
It was found that the square wave high-voltage amplifier has the shortcomings of high power consumption and strong harmonic disturbance in displacement measurement.
但在应用中发现，方波高压放大器存在功耗高和对位移测量电路干扰大的缺点。
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。
The results of computer simulation and the application on the electrical power measurement instrument have shown that the method improves the accuracy of the harmonic analysis.
计算机仿真及实际的配电综合测控仪中的应用表明该方法能有效提高测量谐波的准确度。
The results of computer simulation and the application on the electrical power measurement instrument have shown that the method improves the accuracy of the harmonic analysis.
计算机仿真及实际的配电综合测控仪中的应用表明该方法能有效提高测量谐波的准确度。
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