给出了数据采样频率是物理量变化频率10倍、8倍和6倍以上时测量精度的适用范围。
And it gives the suitable limits of measurement precision respectively, when the sampling frequency of data is 10 times. 8 times and 6 times of the frequency of physical change.
对于超高速数据采样频率来讲，一般的数据传送系统是不能满足要求的，在这里介绍了一种在板存储器方式传送数据方式。
For the exceeding-speed data gathering frequency, the common data transmission system is to can't up to the request, here introduces a kind of on -board RAM transmission method.
但采样频率过高会增加处理的数据量，从而降低泄漏检测的速度。
But the high frequency of sampling will result in the increase in data collecting, thus reduce the velocity of leaking detection.
选择一个合适的采样频率是保证数据采集系统可靠工作的关键。
An appropriate sampling frequency is the key of the data acquisition system reliable work.
然后，结合数据再同步的需求分析了频率自适应采样方法在高密度的相量同步情况下的局限性；
Then, the limitations of the adaptive sampling interval technique are analyzed by taking into account the requirement for high frequency resynchronization.
随着采样频率和A/D变换器位数的增加，时钟抖动和相位噪声对数据采集系统性能的影响更加显著。
The effect of clock jitter and phase noise on data acquisition system performance is more profound as the increase of sampling frequency and the bit of A/D converter.
讨论采样频率、数据长度对结果的影响。
Discussion of the sampling frequency, data length on the results.
在此归纳总结了采样频率为中等速度时，仪表核心数据采集模块的三种主要的控制方法。
As the most important part of instrument, it is vital for the control of the kernel data collection module.
它能以较高的采样频率，对一动态变化的频率进行自动测量，并将数据存盘。
With this system, a varying frequency can be measured automatically in high sampling frequency, and the data are saved in a disk.
研究了连接动态压力传感器的信号线长度、放大器的滤波频率和数据采集系统的采样频率对空气压力波测量的影响。
The effects of the signal line length, the filter and the sampling frequencies on measuring air pressure pulse were studied in this paper.
系统处理的是连续视频信号，数据量大，采样频率高，本文采用了一种利用FIFO的帧中斯管理方法来解决视频信号的采集问题。
The sampling rate of continuous video data processed by the system is high , so we use a method by the use of FIFO frame buffer to capture the video.
在刚度、垂度及温度等边界条件一定的条件下，拉索索力测量精度主要由振动信号数据采集的频率和采样时间决定。
With the fixed stiffness, sag, temperature and so on, survey precision of the tension force of the cable is determined by the sample rate and the sample length of the vibration signal.
理论分析和仿真表明这种方法具有较强的抗干扰性，其频率测量精度主要与信噪比、频率偏差及采样数据的长度有关。
In this paper, a phase difference correction method is presented to correct the power frequency. This method has strong anti-disturbance capability by theoretical analysis and simulation.
运用锁相环技术使采样频率同步跟踪信号频率，提高采样数据计算的准确性。
The use of phase-locked loop technology makes the sampling frequency synchronously follow the signal frequency and improves the calculation accuracy of sampling data.
在发送端时钟频率随时间变化的情况下，以较低的成本和较简单的电路实现，保证了接收端采样数据及音频数据恢复的准确性。
Because clocking frequency of sending terminal is changed with times at lower cost and simple circuit, accuracy of receiving end sampled data and audio - data recovery is assured.
在发送端时钟频率随时间变化的情况下，以较低的成本和较简单的电路实现，保证了接收端采样数据及音频数据恢复的准确性。
Because clocking frequency of sending terminal is changed with times at lower cost and simple circuit, accuracy of receiving end sampled data and audio - data recovery is assured.
应用推荐