| 针型电容法测量谷物含水率的研究 |
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| 引用本文： | 韩吉田,归柯庭,王济浩,施明恒.针型电容法测量谷物含水率的研究[J].农业工程学报,1996,12(1):157-160. |
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| 作者姓名： | 韩吉田 归柯庭 王济浩 施明恒 |
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| 作者单位： | 山东工业大学;东南大学;山东工业大学;东南大学 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用针型电容传感器和测量电路,并采取减小介质损耗的有效措施,研制了测量谷物含水率的针型电容法。实验结果表明,在谷物含水率与输出电压间具有良好的线性关系。该方法具有较高灵敏度、稳定性和良好的动态特性,完全可以满足谷物含水率的测量要求,为谷物含水率的准确、快速和在线测量提供了一种有效的方法。
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| 关 键 词： | 谷物含水率 电容法 电容传感器 |
| 收稿时间： | 1994/12/27 0:00:00 |
Research on the Needle-Type Capacitance Method for Measuring Moisture Content in Grains |
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| Han Jitian,Gui Keting,Wang Jihao and Shi Mingheng.Research on the Needle-Type Capacitance Method for Measuring Moisture Content in Grains[J].Transactions of the Chinese Society of Agricultural Engineering,1996,12(1):157-160. |
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| Authors: | Han Jitian Gui Keting Wang Jihao and Shi Mingheng |
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| Institution: | Han Jitian Gui Keting
(Shandong Polytechnic University) (Southeast University)
Wang Jihao Shi Mingheng
(Shandong Polytechnic University) (Southeast University) |
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| Abstract: | A needle-type capacitance method is proposed for measuring moisture content in grains. The higher sensitivity,stability and better response of the measurement are achieved by means of a needle-type capacitor sensor, a high-sensitive circuit capable of accurate measuring changes in capacitance and effective measures for reducing medium loss. The experimental results show that there is a good linear relationship between the moisture content in grain and the output voltage. This method gives a new way for the accurate, quick and in-situ measurement of moisture content in grains. |
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| Keywords: | Moisture content in grain Capacitance method Capacitor sensor |
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