频率测量在电力工业中极具实用价值。
The frequency measurement is of practical value in electric industry.
本文介绍了一种高精度动态频率测量系统。
In this paper, a system of highly accurate dynamic frequency measurement is described.
高精确电压和电流的高频率测量是困难的。
Accurate high frequency measurements of high voltages and currents are difficult.
特高频率的测量是频率测量中的难点之一。
The measurement of ultrahigh frequency is one of the difficulties in frequency measurement.
信号频率测量在雷达信号处理中起到重要的作用。
The frequency measurement for dual signals is crucial in radar signal processing.
频率梳显著简化了频率测量并大大提高了测量的准确度。
Frequency combs have dramatically simplified and improved the accuracy of frequency metrology.
研究脉动流条件下涡街信号的模型，提出频率测量的新方法。
A model of vortex signal in the state of pulsing flow is studied, and a new frequency measuring technique is proposed.
数据采集、频率测量和数据显示是本系统的三个重要组成部分。
This system consists of three main parts, data collection, frequent measurement and data showing.
小型移动电站并列过程中的频率测量是实现其并列的基础和关键。
In the process of abbreviated mobile power stations parallel connection, frequency measurement is the key and basis of the parallel connection.
该方法频率测量精度高，实行频率跟踪采样，提高了电压计算精。
Simulation shows that the frequency measurement has preferable precision and voltage calculating is improved by frequency tracking.
介绍了基于DSP的微机继电保护装置中频率测量的CPLD实现。
This paper introduces CPLD realization of frequency measure in digital relay protection equipment powered by DSP.
提出一种基于改进的能量矩形平衡法的频率测量算法，给出框图程序。
A frequency measure algorithm based on the improved energy rectangular balance method was presented in this paper.
系统由CPLD相位频率测量模块、单片机和显示模块三个部分组成。
That system is measured by the network of CPLD phase measure, SCM and display module three fractions constitutes.
由于测量抖动频率的精度较高，故由抖动频率测量温度具有很高的分辨率。
The result show the resolution of temperature measured by dither frequency is very high.
简要介绍了基于频谱分析的汽轮机叶片自振频率测量系统的组成和工作原理。
In this paper, a natural frequency-measuring device for turbine blade is developed, and its constructing and working principles based on spectrum analysis are presented.
首先以无源声呐对目标的方位角、俯仰角和频率测量为依据，建立动态系统模型。
The model of motive system is made in the light of measurements of target bearings, elevation and frequency by passive sonar.
介绍了以AT 89 C 2051单片机为核心的水轮发电机组频率测量系统。
This paper introduces a frequency measurement system based on an AT89C2051 micro controller for hydroelectric generator unit.
基于PC机的汽轮机叶片静态频率测量系统可大大提高测量的精确度和工作效率。
The measurement accuracy and work efficiency are greatly improved by turbine blade natural frequency measurement system based on industrial PC.
介绍了双计数器多周期同步法频率测量原理，给出了用单片机实现的具体实现方案。
The paper introduces the principle of frequency measure based on double-counter and multi-periods pulse synchronization method, and the designing with microprocessor is offered.
但是，单靠中国余数定理仍无法解决距离测量和多普勒频率测量中的误差和遮挡问题。
But the Chinese Remainder Theorem cannot solve the error and the blind region made in range and doppler velocity measurements.
为提高频率测量精确度，提出一种自动调整采样参数与频谱校正相结合的频率测量算法。
For improving the precision of the frequency measure, presents a frequency measure algorithm by integrating automatic adjusting the sampling parameter and spectrum correction.
在电子测量中，频率是一个基本参量，因此，科学技术对频率测量的精度要求越来越高。
The frequency is a basic parameter in the electronic measurement, therefore, science and technology require the precision of measuring frequency higher and higher.
本文在对单片机小系统进行研究的基础上，介绍了一种由单片机控制的频率测量控制系统。
This paper introduces a system of frequency measurement and control system based on single-chip microcomputer control.
对调制域测量技术作了简要介绍，探讨了调制域分析仪在复杂信号频率测量分析上的一些应用。
The modulation domain measurement technique is presented simply. The application of modulation domain analyzer in the complicated signal frequency measurement analysis is probed.
本文主要研究了一种集晶片频率测量、分选于一体的新型石英晶片测量与分选的自动控制系统。
This paper studies a kind of new autocontrol system across-the-board, which can realize both the measurement of frequency and the separation of quartz crystal wafer.
测试结果证明采用该系统对频率测量的精度可以达到千分之一，测量的相 对误差不大于1％。
The test results prove that by using the system the frequency measurement accuracy can achieve thousandth and the relative error of measurement within 1%.
频率测量一般是通过对被测信号和标准信号计数实现，因此量化误差是引起测量误差的主要原因。
Frequency measurement is usually implement by accounting the measured signals and standard signals, thus quantizing error becomes the main source of measuring error.
微调机是石英晶体谐振器成品生产的主要设备，其频率测量系统的精度决定了微调机的微调精度。
The final-plating machine is one of the main equipment for producing the quartz crystal resonators, The accuracy of its frequency measurement system is to define the accuracy of the integral machine.
研究频率测量过程中输入信号的脉冲边沿与测量设备的闸门信号边沿不一致造成的频率测量误差。
This paper analyzes usual measuring errors caused by inconsistency of the input signal pulse verge and strobe signal verge in frequency measurement. It sets forth an effective solution.
研究频率测量过程中输入信号的脉冲边沿与测量设备的闸门信号边沿不一致造成的频率测量误差。
This paper analyzes usual measuring errors caused by inconsistency of the input signal pulse verge and strobe signal verge in frequency measurement. It sets forth an effective solution.
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