频率测量设备 [电子] frequency measuring equipment
雷射频率测量 Laser frequency measurement
频率测量仪器 frequency measuring instrument
桥梁自振频率测量 bridge natural frequency measurement
积分频率测量法 integrating frequency measurement method
静频率测量法 static frequency measurement method
利用共振频率测量仪 OSSTELL
动频率测量 dynamic frequency measurement
数字瞬时频率测量 DIFM
动频率测量法 dynamic frequency measurement method
We use FPGA to do high-resolution frequency measurement, which achieves the real-time display of output frequency.
使用FPGA进行高分辨率频率测量,实现了输出频率的实时显示。
参考来源 - DDS频率合成及测频技术研究The accuracy of phasor measuring is determined by that of system frequency measuring, and the frequency deviation will give more influence to the phasor computing than to the amplitude of DFT.
2、指出系统频率测量精度是PMU相量测量精度的关键,而且频率测量偏差造成的相位影响远高于幅值影响。
参考来源 - 电力系统“广域同步相量测量”中几个关键问题的研究We also implement the frequency estimation algorithm on FPGA, and propose a new method of function approximation based on FPGA implementation.
本文设计了一种新的基于FPGA实现的函数逼近方法,将其用于频率测量算法的硬件实现时,可以有效的提高运算速度,并减少占用的硬件资源。
参考来源 - 高速数字信号处理硬件设计及频率测量算法的实现Combined with a kind of precise, constant gate’s measuring method that is derived from the several period synchronization measuring method, high speed, high precision, successive frequency measurement can be fulfilled. It adapts well to the sensor signal measurement of non-frequency.
此方法可以广泛地应用于高精度频率、时间及相位测量中,将其与一种从多周期同步法发展而来的高精度、定闸门测量法相结合,可实现高速、高精度、连续频率测量,而这一点非常适合非频率量传感信号的测量。
参考来源 - 优于皮秒(ps)量级的频标比对技术和高精度频率测量方法的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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.
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.
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.
So, one thing they did, because it was so easy to measure kinetic energy of electrons, is plot the frequency of the light against the kinetic energy of the electron that's coming off here. And in your notes and on these slides here, just for your reference, I'm just pointing out what's going to be predicted from classical physics.
他们做的其中一件事,因为测量电子动能是很容易的,就是画出光的频率,和出射电子动能之间的关系,在讲义的这里,仅仅是,为了做个比较,我要指出,经典物理所给出的预测,这个不作为对你们的要求。
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