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首页> 外文期刊>The Open Acoustics Journal >In-Line Dynamic Acoustic Behavior of a Viscoelastic Complex Media:Dough Application
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In-Line Dynamic Acoustic Behavior of a Viscoelastic Complex Media:Dough Application

机译：粘弹性复合介质的在线动态声学行为：面团应用

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The main objective of this study was to understand the physical law characterizing dough during kneading.Throughout the process, dough is subjected to extensional deformation resulting from the mechanical component and thedevelopment of holes in the matrix. For that, we developed a very low frequency acoustic device (< 100 Hz) to follow themechanical evolution of the dough through an in-line acoustic sensor with part of the mixer playing the role of an acousticreceiver (ear-phone), which exploits the background noise of the process. Depending on the physical state of the product,acoustic amplitude of sound was chosen to represent the evolution of the matter. Via a signal processing modulus thissensor shows the mechanical progress of the dough by means of a curve with critical points. The results show that theacoustic component is able to follow the evolution of the physical properties of the matter in situ. The results usingvarious technological parameters indicate that a high degree of sensitivity can be reached with non-destructive acoustictechniques in highly absorbing media.
机译：这项研究的主要目的是了解面团在揉捏过程中的物理规律。在整个过程中，面团会由于机械成分和基质中孔的形成而发生拉伸变形。为此，我们开发了一种非常低频的声学设备（<100 Hz），通过一个内置的声波传感器跟踪面团的机械演变，混频器的一部分起着声接收器（耳机）的作用，该设备利用了该过程的背景噪音。根据产品的物理状态，选择声音的声振幅来表示物质的演变。通过信号处理模量，该传感器通过带有临界点的曲线显示面团的机械进程。结果表明，声学成分能够顺应原位物质物理特性的演变。使用各种技术参数的结果表明，在高吸收性介质中使用非破坏性声学技术可以达到很高的灵敏度。

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