功率测量

基于DSP算法的谐波功率测量仪的研究

The study of harmonic power measurement instrument based on DSP algorithm

基于多CPU与相位差校正的高精度谐波功率测量

Harmonic Power Measurement Based on Multi-CPU and a Phase Difference Correction Algorithm

一种基于Hilbert数字滤波的无功功率测量方法

A method of reactive power measurement based on Hilbert digital filtering

基于2对Hilbert移相滤波器的无功功率测量方法

Method of Reactive Power Measurement Based on Two Pairs of Hilbert Digital Filters

HIFU聚焦探头声场功率测量的凹锥面反射靶设计分析

Design of concave cone reflector for HIFU ultrasonic transducer power measurement

Ka波段绕射辐射振荡器的辐射功率测量

Measurement of Radiation Power for Ka-Band Relativistic Diffraction Generator

分析显示功率测量与多普勒频率测量的Fisher信息矩阵具有互补性。

The corresponding Fisher information matrix shows that power and Doppler measurements complement each other .

功率测量是HPM技术领域中的重要研究内容之一。

Power measurement is an important part of high-power microwave measuring technology .

本文分析了Hilbert数字滤波器在无功功率测量中的应用；

The application of the FIR Hilbert digital filter in the measurement area of the reactive power is analysed in this article .

基于DFT的电力系统相量及功率测量幅值算法的工程化改进方法

One Method to Improve the Amplitude Measurement of a DFT-based Method for Phasor and Power Measurement in Power Systems for Engineering Application

HL－1准光学ECRH传输系统的设计与大功率测量

The design of quasi-optical ECRH transmission system of HL-1 TOKAMAK and high power measurement

共轴波导-同轴转接器的研制及用于大3cm波导功率测量时的误差分析

Development of Waveguide-Coaxial Adaptor with a Common Axis and Error Analysis in Large 3-cm Waveguide Power Measurement

基于1对Hilbert移相滤波器实现的无功功率测量方法存在移相误差对测量准确度影响大、中间信号纹波较大等问题。

The classical method of reactive power measurement based on one pair of Hilbert filters has some shortcomings such as the accuracy considerably dependent on phase-shift error , the ripples of the intermediate signal .

电路设计：完成了低噪声的光电探测电路，并以STC单片机为核心设计了光源功率测量显示电路及智能选频电路。

( c ) Circuit design : Low-noise optical detection circuit was designed . The optical power measurement and display circuit were designed by using the STC SCM as core .

证明等波纹切比雪夫法所设计的Hilbert数字滤波器较窗函数法有较好的性能，更能较好的提高无功功率测量精度。

It is proved that the Hilbert digital filter designed by the ripple Chebyshev method performs better than the filter designed by using the window function , and can improve the precision of the reactive power measurement .

给出了一种无线寻呼故障检测系统的硬件设计及其软件实现，其中硬件故障检测包括功率测量、频率检测、频偏测量、Modem检测、电压检测等，同时还给出了发射机所有性能指标。

A fault detection system for radio paging system is designed and hardware construction and software function are introduced in detail . Power measurement , frequency detection , frequency deviation measurement , Modem detection , etc are explained , and all performance index of the transmitter is given .

根据MVA贡献因子理论，非线性函数值贡献因子理论，EMS瞬时功率测量，提出了用户对输电设备的MVA积分使用程度概念及其算法。

Based on the MVA contribution factor theory , the contribution factor theory of non linear functional value and the EMS instantaneous power measurement , the concept of MVA integration usage of power device by user and its algorithm are given .

针对野战光纤光路损耗介绍一种精密光功率测量方法，分析了PIN光电接收元件的P-I（光功率-光电流）特性，并建立了实际模型。

A precise optical power measurement method is introduced in this paper to detect the optical path loss . In this study , a mathematical model is catered to analyze optical power and current characteristics ( P-I ) of the PIN electrooptic cells .

为了保证在单次功率测量时由热电变换器引起的交、直流转换误差小于20ppm，对热电变换器提出一系列的特殊要求。

To ensure the AC / DC transfer error caused by thermal converter to be less than 20 ppm , there are some special and tight needs for thermal converter in AC power measurement with single time .

性能测试表明：钚量热计的样品热功率测量下限为4mW、测量上限高于9W，灵敏度约为202mV·W~（-1），线性范围为4mW～9W。

The performance tests show that the sensitivity of calorimeter is about 202 mV · W-1 and the linear scope of the measuring thermal power is from 4 mW to 9 W. The thermal power of plutonium was measured by the calorimeter .

狭小空间条件下的声功率测量

Sound Power Measurement in a Narrow Room Chat Room Next Room

对称三相电路无功功率测量

Measurement of the reactive power in three - phase balanced circuits

电网信号四象限功率测量原理及实现方法

Principles and Implementation of Four-quadrant Power Measurement for Electric Power Signals

反应堆堆芯热功率测量方法及其误差分析

A Measurement Method Regarding Reactor Core Thermal Power and Error Analysis

一种基于功率测量的相控阵天线校准方法

A Calibration Method of Phased Array Antenna Based on Power Measurement

周期性任意波形电功率测量中采样次数研究

The Study of Sample Frequency in Measuring Periodically Arbitrary Waveform Power

微波功率测量中消除失配误差的研究

Method of Eliminating of Unmatching Error in Microwave Power Measurement

精密交流功率测量中拍频的产生及抑制

Cause and Elimination of Frequncy - difference-error in AC Electric Power Measurement

船舶柴油机轴功率测量系统的设计与实现

Design and implementation of shaft power measurement system for marine diesel engine

消除三相无功功率测量中不对称误差的一种方法

A Method of Eliminating Asymmetry Error in Three Phase Reactive Power Measurement