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- Ciliary beat frequency measurement of cultured human nasal epithelial cellsSONG Xiao-hong, et al. 体外培养的人鼻腔黏膜纤毛摆动频率的测量。
- The signal environment of ECM is more and more complex, so frequency measurement methods must be high-speed and precise in broad frequency band. 面对日益复杂的电子战环境，要求必须在很宽的带宽范围内，对频率信息进行快速、高精度的测量。
- In conclusion, the trend of power system frequency measurement is naturally educed. 最后对电力系统频率测量的发展趋势提出看法。
- Circle Center Fitting (CCF), a phasor method of frequency measurement, is innovated and proved, and it has the practical value of engineering. 提出并论证了“圆心拟合法”相量测频方法,具有一定的应用价值。
- Furthermore,by applying instantaneous frequency measurement algorithm to this system,we can get high estimation accuracy. 此外,还把瞬时测频算法应用到该系统中,取得了很高的测频精确度。
- A more in-depth discussion of commercially available time and frequency measurement equipment and standards, and how such instrumentation can be used in the metrology laboratory. 市场上可用的时间频率测量设备和标准的更深入的讨论，以及此类仪器如何应用在计量实验室。
- SUONAN Jia-le,GE Yao-zhong,WANG Ding-an,et al.A new frequency measurement algorithm uninfluenced by zero crossing of voltage[J].Proceedings of the EPSA,1996,8(4): 19-21. [1]索南加乐;葛耀中;王定安;等.;一种不受电压过零点影响的新型频率测量方法[J]
- A method of frequency measurement based on HSI(High Speed Input) of 80C196 is proposed. It is discussed that voltage sampling frequency tracks signal frequency according to the reasult of frequency measurement. 提出了一种基于 80 C196单片机 HSI的频率测量方法 ,并依据测量的频率来改变电压的采样时间间隔 ,实现频率跟踪功能。
- At present the novel methods for accurate frequency measurement are often published in technical periodicals, but it seems as if these methods lay special emphasis on the distortion of waveform. 近年来用于精确测量频率的新方法也常见于报道 ,但这些方法几乎都在波形畸变上做文章。
- The frequency measurement algorithm can accurately track the system frequency by adjusting the amendatory coefficient in real time according to the error of the original Fourier frequency measurement algorithm. 测频算法根据传统傅氏测频算法存在的误差，通过实时调整修正系数的方法，实现了高精度地跟踪系统频率。
- The frequency measurement and data processing is realized in a chip CPLD. The frequency surveying system of wide range and high integrated and high speed and high accuracy and high reliable is designed. 在一片CPLD上实现频率测量和数据处理,设计了宽范围、高集成度、高速、高精度和高可靠性的频率测量系统。
- The frequency measurement and direction finding are realized separately in traditional ECM field which the frequency obtained by frequency measurement receiver, and the direction finding is implemented using Interferometer etc. 传统电子对抗的测频、测向是独立完成的,即先由测频接收机测得信号频率,且由测向天线采用如相位干涉仪方法完成测向。
- A VI-based vibration frequency measurement using CVI software was designed and it is used to measure the frequency and damping of actuator-OPU. 使用LabWindows/CVI软件设计了一个基于虚拟仪器的振动频率测量方法,并将其运用于促动器的固有频率测量中。
- The working theory of AX5489 (GPIB)s DLL in the frequencys measurement is introduced. 通过一个应用于频率测量的完整实例，介绍了GPIB接口板的DLL调用方法，具有广泛的应用前景。
- The simulation results demonstrate that this approach has high accuracy for the frequency measurement, and strong resistibility for non-periodic, low frequency and high-order harmonic signals. 仿真结果表明：在电网含有较强的非周期、低频和高频谐波信号的条件下，基于这种滤波技术的测频方法具有较高的频率测量精度。
- This paper introduces how to form stepmotor driver source by using EPROM and analyse and design driver source and frequency measuring circuit. 本文介绍了利用EPROM芯片构成步进电机的驱动电源，并对驱动电源及频率测量电路进行了分析和设计。
- In this paper, a frequency measure method based on Automatic Gain Control (AGC) voltage is provided to the request of experiment equipment design. 针对实验装置设计的要求,提出一种基于自动增益控制(AGC)的电压值测量频率的方法。
- An application with more immediate commercial implications than ultraprecise frequency measurements is telecommunications. 比超精度频率量测更即时的商业应用是在通讯方面。
- A convenient and visual way was found to instant measure frequency via effect of acoustooptic deflection,making solution to the conventional radar carrier frequency measurement. 针对传统雷达载频测量方法的不足,设计出了一种基于声光偏转效应的简单快捷的可视化频率测量方法,实现了对雷达频率实时并行检测。
