The leak location package for assessment of the time-frequency correlation method for leak location

International Conference on Information Technologies in Business and Industry 2016

计算机科学;经济学;工业技术

Faerman, V.A.^1 ; Cheremnov, A.G.^1 ; Avramchuk, V.S.^1 ; Shepetovsky, D.V.^1

Tomsk Polytechnic University, 30, Lenina Ave., Tomsk

634050, Russia^1

关键词: Acoustic correlations;    Comparative analysis;    Higher efficiency;    Information contents;    Laboratory conditions;    Performance assessment;    Software and hardwares;    Time frequency cross correlation function;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/803/1/012040/pdf
DOI  :  10.1088/1742-6596/803/1/012040

来源: IOP

【 摘 要 】

The paper describes the simplest implementation of a software and hardware package for acoustic correlation leak location and results of its performance assessment for location of water leaks from a metallic pipe in laboratory conditions. A distinctive feature of this leak locator is the use of the software based on the time-frequency correlation analysis of signals, which was proposed in our previous papers. Comparative analysis results are given for the information content of classical and time-frequency cross-correlation functions as obtained during processing of experimental data. The results obtained justify comparatively higher efficiency of a time-frequency cross correlation method to solve the leak location task. Improved efficiency is determined by bandpass filtration embedded into the time-frequency cross-correlation function calculation.