While it had no significant effect on Resonant Frequency Vibration(FFT analyzer).
含水率对纵向基频振动法（FFT）测得的动弹性模量影响不显著。
This paper is intended to introduce the random calibration method for vibration transducers with two-channel FFT analyzer.
介绍了采用双通道FFT分析仪进行振动传感器随机校准的方法。
In this paper, a close-cycle shaker control method, which is realized by using a two-channel FFT analyzer and a PC, is studied.
本文研究了一种利用双通道FFT分析仪和PC机实现激振器闭环控制的方法。
Secondly, laser sensor quantitative measure wood surface roughness method and wood surface defect recognition are studied by the test system consisting of FFT analyzer, laser sensor etc.
其次，使用由FFT快速傅立叶分析仪、激光传感器等组成的检测系统，进行了激光传感器对木材表面粗糙度定量测量方法的研究和木材表面缺陷识别的研究。
The method of impact excitation testing with Fast Fourier Transform (FFT) based on spectrum analyzer to determine the dynamic characteristics of a heald frame is introduced.
介绍了通过基于快速傅立叶变换（FFT）的谱分析确定综框的动态特性。
The method of impact excitation testing with Fast Fourier Transform (FFT) based on spectrum analyzer to determine the dynamic characteristics of a heald frame is introduced.
介绍了通过基于快速傅立叶变换（FFT）的谱分析确定综框的动态特性。
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