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.
根据人体脉搏信号特征，本文设计了一种脉搏波动频率测量系统。
According to the characteristics of the human pulse signals, a pulse fluctuation frequency measurement system is designed.
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.
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.
结果表明：这种频率测量系统具有成本低、高速、等精度等特点，应用前景广阔。
The result shows that this frequency measure system has the characteristics of the low cost, high speed, the equal precision and etc. It can be used widely in future.
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.
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.
采用以便携式计算机为核心的新型汽轮机叶片频率测量系统可大大提高测量的精确度和工作效率。
Described in this paper is a newly developed portable computer-based vibration frequency measurement system for turbine blades.
本文介绍了一种由双8051芯片构成的频率测量系统，给出了其软硬件系统实现的方案，并对该系统效率进行了分析。
The paper introduced a frequency measure system composed of double 8051 chips, presented the realized schemes of the hardware and software, and analyzed system 's efficiency.
提出了一种高精度频率测量系统的设计方法，应用单片机技术将多周期同步法和量化时延法相结合，实现了频率的高精度快速测量。
The MCU is used for the center controller, achieving high accuracy frequency measurement by methods of multi-cycle synchronism and quantization time-delay.
以汽轮机内蒸汽湿度的准确测量为目的，设计了基于微波谐振腔微扰法的蒸汽湿度测量系统：自动频率跟踪系统和等精度频率测量系统。
A wetness measurement system based on cavity perturbation method is designed for precise measuring, including automatic frequency tracing system and equal precision frequency measurement system.
在对SAW传感器技术进行研究的基础上，本文设计了一个SAW湿度传感器，包括IDT(叉指换能器)的设计、薄膜的设计以及频率测量系统的设计。
On the basis of SAW technology, this thesis designs a SAW humidity sensor. Include the design of IDT (interdigital transducer), the thin film as well as the frequency measurement system.
在某相位编码毫米波雷达系统中，要求很高的目标速度测量精度，因而目标多普勒频率测量电路的设计比较重要。
The design of target doppler frequency measurement circuit is very important in phase coded MMW radar system because of the high measurement precision requirement of target speed.
使用该系统，可以很方便地测量冲击器的能量、频率、流量等重要指标。
It is very convenient for gauging the energy, frequency and flow of hydraulic shock device.
提出了一种利用富氏滤波器的输出测量电力系统频率的算法。
An algorithm which USES output of the Fourier filter to measure power system frequency is presented.
该系统可以测量频率低至直流的加速度。
The system can measure the direct current frequency acceleration.
在某相位编码毫米波雷达系统中，由于对目标速度测量精度的要求很高，因此目标多普勒频率测量电路的设计也具有比较重要的地位。
The design of target Doppler frequency measurement circuit is very important in phase-coded MMW radar system because of the high measurement precision requirement of target speed.
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.
嵌入式控制系统在执行复杂测量与控制任务的同时，常需要测量外部信号的频率。
Frequency of external signals is constantly needed to be measured when complex measurement and control instructions are executed in an embedded system.
提出了一种基于数字微分和拉格朗日插值的系统频率快速而准确的测量算法。
An algorithm for power system frequency measurement based on numerical differentiation and central Lagrange interpolation is presented.
该文介绍一种用来测量电源系统工作频率的新方法。
This paper describes a new technique for measuring the operating frequency of a power system.
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.
常规的测量电源系统工作频率的方法易受噪声和谐波的影响。
The common method of measuring a power system operating frequency is easily affected by the noise and harmonics.
这种芯片非常适用于信号的幅值和频率动态范围大的测量系统。
This chip is applicable for the measure of signal, whose amplitude and frequency has high dynamic range .
通过对该方法灵活运用，本文用较少的代价完成了频率测量及校正系统的设计，并对该系统进行了性能测试。
In this paper, the design of the frequency measurement and correcting system can be achieved with less cost, and it also offered the system performance test.
以带线系统为测试夹具，利用网络分析仪在微波频率下测量材料的复介电常数和复磁导率。
A network analyzer system is used to make frequency-swept S-parameter measurements on the loaded stripline fixture from which complex permittivity and complex permeability may be calculated.
如果这些输入的频率的分布是可计算、测量、甚至可估计的，则频率响应可以用来决定系统输出的效果。
If the frequency distribution of these inputs can be calculated, measured, or even estimated, the frequency response can be used to determine their effects upon the system output.
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.
提出了一种基于虚拟仪器的精确测量TD - SCDMA信号频率误差的方法，并给出了系统设计。
A method of measuring TD-SCDMA signal frequency error based on virtual instrument is proposed.
提出了一种基于虚拟仪器的精确测量TD - SCDMA信号频率误差的方法，并给出了系统设计。
A method of measuring TD-SCDMA signal frequency error based on virtual instrument is proposed.
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