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- tuning frequency measurement 调谐测频法
- A filter with a tuning frequency more than 10% below the lowest harmonic frequency with considerable current/voltage amplitude. 在相当大的电流/电压幅值时.;滤波器的调谐频率比最低值的谐波频率还要低10%25以上
- 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。
- The result shows that, the size of the coupling port has strong influence on the external quality factor of the output cavity, while the size of the coupling line and the capacitive metal rods mainly affect the tuning frequency of cutoff waveguide filter. 另外，由于耦合接头相当于在截止段中引人了一个附加电感，这使滤波器谐振电路的品质因数变大，谐振峰变窄。
- 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。
- The violin is not quite in tune with the piano. 这小提琴跟钢琴的调子不太和谐。
- 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。
- A small boy was beating out a tune on a tin can. 一个小男孩正用铁皮罐敲奏出曲子来。
- He played a tune on his trumpet. 他用小号吹奏了一首曲子。
- 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。
- Hum the opening bars of your favourite tune. 哼一哼你喜爱的曲子的开头几个小节。
- She calls the tune in their house. 他们家中她说了算。
- 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。
