| 测量谷物流含水率声学方法的研究 |
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| 引用本文： | 李小星,王 为,任小春.测量谷物流含水率声学方法的研究[J].西北农林科技大学学报(社会科学版),1993,21(2):38-42. |
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| 作者姓名： | 李小星 王 为 任小春 |
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| 作者单位： | 西北农业大学农工系，西北农业大学农工系，西北农业大学农工系 陕西杨陵 712100，陕西杨陵 712100，陕西杨陵 712100 陕西省靖边县农机局 |
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| 摘 要： | 研究了一种测量流动谷物含水率的声学方法。通过试验,确定了大豆流声信息与含水率的关系。在200～310Hz频率范围内分析了含水率9％～16％时声压与含水率、流量、声源距离、下落高度诸因素的关系,并建立了数学模型。
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| 关 键 词： | 谷物 含水率 幅频特性 声学方法 |
An Acoustic Method for Measuring Moisture content of Grain Flowing |
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| Li Xiaoyu Wang Wei Ren Xiaochun.An Acoustic Method for Measuring Moisture content of Grain Flowing[J].Journal of Northwest Sci-Tech Univ of Agr and,1993,21(2):38-42. |
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| Authors: | Li Xiaoyu Wang Wei Ren Xiaochun |
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| Abstract: | This paper studies an acoustic method for measuring moisture contents in grain flowing. The relation between the acoustic information and moisture contents in soybean was established through the experiments. The relations among such factors as acoustic pressure and moisture contents, flow rate, acoustic source, and falling height were analysed within the range of 200 - 310 Hz when moisture content is 9%-16%, and the corresponding mathsmatical models are established. |
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| Keywords: | cereal grains moisture content amplitude frequency behaviors acoustic method |
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