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Material Level Measurement in Ball Mill Based on the Analysis of Sound Signals

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The measurement of material level in ball mill is a difficult problem for enterprise production. The ball mill should keep appropriate amount of material to achieve high energy efficiency and work efficiency. In order to effectively measure the material level in the mill, we collect the sound signals when the mill is working (mill sound for short). Characteristic frequency band of mill sound is selected by analyzing collected data. Wavelet analysis technique is used to obtain the signal power of characteristic frequency band which reflects material level. The experiment result shows that the proposed scheme can accurately detect the material level of the mill so as to make it work in best load condition.
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Document Type: Research Article

Publication date: 01 July 2018

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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