| 电容式粮食含水率测量仪的设计 |
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| 引用本文： | 付鹤翔,张利凤,郭文川.电容式粮食含水率测量仪的设计[J].农机化研究,2011,33(11). |
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| 作者姓名： | 付鹤翔 张利凤 郭文川 |
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| 作者单位： | 西北农林科技大学机械与电子工程学院,陕西杨凌,712100 |
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| 基金项目： | 中央高校基本科研业务费资助项目(QN2009043) |
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| 摘 要： | 为了克服温度和容积密度对电容式粮食含水率测量仪精度的影响,设计了能够同时检测粮食电容、温度和容积密度的硬件电路和程序。电容传感器为同轴圆筒型,以数字式温度传感器DS18B20检测温度,由应变片组成的桥式电路检测质量,进而计算容积密度。根据得到的电容、温度和容积密度值,基于数据融合技术可得到被测样品的含水率。
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| 关 键 词： | 粮食 水分 电容传感器 温度 容积密度 |
Research on Capacitive Grain Moisture Content Meter |
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| Fu Hexiang,Zhang Lifeng,Guo Wenchuan.Research on Capacitive Grain Moisture Content Meter[J].Journal of Agricultural Mechanization Research,2011,33(11). |
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| Authors: | Fu Hexiang Zhang Lifeng Guo Wenchuan |
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| Institution: | Fu Hexiang,Zhang Lifeng,Guo Wenchuan(College of Mechanical & Electronic Engineering,Northwest A&F University,Yangling 712100,China) |
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| Abstract: | In order to overcome the influence of temperature and bulk density on the precision of capacitive grain moisture content meter,the hardware and software which can measure capacitance,temperature and bulk density of grain simultaneously were designed.The coaxial cylindrical capacitor was used to measure capacitance,digital temperature sensor DS18B20 was used to detect temperature,and the bridge circuit made by strain gauges was applied to detect mass,then the bulk density was calculated.According to the valu... |
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| Keywords: | grain moisture capacitor senor temperature bulk density |
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