The resolution and error were analyzed based on frequency measurement and period measurement, and the factors were given that influencing the speed measurements.
详细分析了周期测、频率法利用编码器脉冲计算超低转速时的分辨率及绝对误差，给出了影响转速测量的影响因素。
The talk will describe measurement techniques in THz spectroscopy and imaging and related calibration methods for frequency, amplitude, resolution and dynamic range.
讲座将介绍在太赫兹光谱和成像和频率，振幅，分辨率和动态范围测量技术相关的校准方法。
The disadvantage of high precision frequency accuracy measurement method available is that an expensive high-resolution time interval counter is needed.
常用高精度校频算法的不足在于需要昂贵的高分辨时间间隔计数器。
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