VIBRATION MEASURING DEVICE FOR CALCULATING FREQUENCY IN REAL TIME

摘要

The present invention relates to a vibration measuring device for calculating a frequency in real time, comprising: a sensor which is attached to a structure to be measured, so as to detect vibration generated in the structure; an analog-digital conversion unit for converting the vibration detected from the sensor into digital data; a memory for storing the digital data; a fast Fourier transform calculation unit for performing a fast Fourier transform of the digital data; and a fast Fourier transform data control unit for determining whether to perform a fast Fourier transform of the digital data stored in the memory on the basis of the characteristics of the corresponding data.