| 基于驻波原理的无接触土壤含水率测量方法的研究 |
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| 引用本文： | 董亚峰,王一鸣.基于驻波原理的无接触土壤含水率测量方法的研究[J].农机化研究,2007(1):85-88. |
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| 作者姓名： | 董亚峰 王一鸣 |
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| 作者单位： | 中国农业大学,信息与电气工程学院,北京,100083 |
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| 摘 要： | 我国是一个缺水的农业大国,实现精细灌溉是节约水资源的有效途径,而精确地测量土壤体积含水率是实现精细灌溉的重要保障之一.为此,提出了一种基于驻波率原理的土壤含水率测量的新方法-无接触式测量方法,介绍了其工作原理,研究出了无接触式土壤水分传感器的结构.用烘干法进行对比试验,从而得出SWR无接触式土壤含水率测量方法是一种高性能的测量方法.
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| 关 键 词： | 自动控制技术 无接触式传感器 理论研究 土壤含水率 无接触式 测量方法 驻波原理 无接触 土壤含水率 测量方法 研究 Ratio Principle Based Soil Moisture Noncontact Measurement 高性能 对比试验 烘干法 结构 土壤水分传感器 工作原理 接触式 含水率测量 驻波率 保障 |
| 文章编号： | 1003-188X（2007）01-0085-04 |
| 收稿时间： | 2006-02-22 |
| 修稿时间： | 2006年2月22日 |
Study on the Noncontact Measurement of Soil Moisture Based on the Principle of Standing-wave Ratio |
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| DONG Ya-feng,WANG Yi-ming.Study on the Noncontact Measurement of Soil Moisture Based on the Principle of Standing-wave Ratio[J].Journal of Agricultural Mechanization Research,2007(1):85-88. |
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| Authors: | DONG Ya-feng WANG Yi-ming |
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| Institution: | Information and Electric Engineering College, China Agricultural University, Beijing 100083, China |
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| Abstract: | Our country is one of the large agricultural country that lacks the water, achieving the precision irrigation is one of the methods that saves the water resource, so the measuring precision the ratio of water in the soil volume is one of the importune safeguards that achieves the precision irrigation. Hence, as the development of precision irrigation, it becomes more important to measure soil moisture rapidly, exactly. Although the study on the measurement of soil moisture has been carrying through for half a century, a satisfied means of measurement is still lack until now. The measurement of soil dielectric constant is a good means to determine soil moisture. A new measurement based on the principle standing-wave ratio is introduced in this paper-noncontact measurement. According to the comparative measurements with the standard method, it demonstrated that the noncontact sensor was a measuring instrument with higher performance. |
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| Keywords: | auto-control technology noncontact sensor theoretical research soil moisture noncontact measurement methods |
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