关于振动采集设备频率分辨率的分析

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频率分辨率是数字信号处理中一个重要的概念。在振动测试中，测试人员通常都希望收集到振动信号完整的特征信息，得到的频率、相位信息尽可能准确，频谱图中频率分辨率能够达到合适水平，但这些都与采集设备本身设计或者有关设置密切相关。文章将就此展开分析，并以Bently408DSPI为例说明如何设置才能得到合适的频率分辨率。

The frequency resolution is an important concept in the digital signal processing. In the vibration testing, testers always hope to get complete feature information, and gain exact specifics about frequency and phase, and obtain appropriate frequency resolution. But all the information is closely related to the design or setting of acquisition device. This article analyzes the design or setting, and points out how to get appropriate frequency resolution by different setting in Bently 408 DSPL

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关于振动采集设备频率分辨率的分析。