Open AccessIntegration of Vibration Acceleration Signal Based on LabVIEW
Author(s) -
Qihe Liu
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1345/4/042067
Subject(s) - acceleration , time domain , frequency domain , displacement (psychology) , waveform , computer science , signal (programming language) , vibration , domain (mathematical analysis) , direct integration of a beam , time delay and integration , numerical integration , acoustics , engineering , physics , mathematics , computer vision , structural engineering , telecommunications , mathematical analysis , classical mechanics , programming language , psychology , radar , psychotherapist
In vibration measurement, the measurement of acceleration is more convenient than that of displacement, but the observation of vibration displacement is more intuitive than that of acceleration. In order to convert acceleration signal into displacement, the traditional method is time domain integration, but there is trend term problem in time domain integration, while there is no trend term problem in frequency domain integration. Firstly, the algorithm of time domain integration and frequency domain integration is analyzed. Based on this algorithm, a program is programmed based on Labview 2015. The simulation results of time domain integration and frequency domain integration are compared by using this program. The results show that frequency domain integration can recover waveform better. In practical measurement and analysis, frequency domain integration is better than time domain integration.