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首页> 外文期刊>農業食料工学会誌 >Underwater Helmholtz Resonator with Double Cavities for Volumetric Estimation of Aquatic Samples
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Underwater Helmholtz Resonator with Double Cavities for Volumetric Estimation of Aquatic Samples

机译:水下Helmholtz谐振器,具有双腔,用于水生样品的体积估计

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Non-destructive estimation of aquatic products' volume is important for efficient feed utilisation, and for determining the appropriate time for landing. To enable this, we propose a double cavity underwater Helmholtz resonator for precise aquatic products' volume estimation. The fundamental principles were developed and the resonator consisting of the generating cavity and the sample cavity was fabricated. By attaching an underwater speaker to the generating cavity, sweep sound was generated and captured using the speaker's impedance technique. Air, which is less dense than water, was inserted into the sample cavity to mimic aquatic samples of increasing volume. Resonance frequency decreased as air volume increased. A high linear correlation with an R~2 of 0.99 between the actual and predicted volume was obtained.
机译:无损估计水产品的体积对于有效的饲料利用而言是重要的,并确定适当的着陆时间。 为了实现这一点,我们提出了一个双腔水下亥姆霍兹谐振器,用于精确水产品的音量估算。 开发了基本原理,并制造了由发电腔和样品腔组成的谐振器。 通过将水下扬声器连接到发电腔,使用扬声器的阻抗技术生成和捕获扫描声音。 除了水的空气较少,插入样品腔中以模仿体积的模仿水生样品。 随着空气量增加,共振频率降低。 获得了实际和预测体积之间的R〜2的高线性相关性。

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