山东农业科学Issue(8)：100-103,4.DOI:10.14083/j.issn.1001-4942.2015.08.026
电容法与电阻法测量烟叶含水率的对比研究
Comparative Study of Capacitance Method and Resistance Method for Measuring Moisture Content of Tobacco Leaves
摘要
Abstract
The differences of moisture content in tobacco leaves measured by capacitance method and re-sistance method were analyzed with packed redried tobacco leaves as materials.The correlation of moisture content with capacitance and resistance values was fitted with equations.The results showed that measured by capacitance method,the testing capacitance and tobacco moisture showed a significant correlation;at plus 1 kHz,10 kHz and 100 kHz frequency,the sensitivity of capacitance to frequency reduced with the increase of frequency,and the fitting degree of equations also reduced;logarithmic model could be used to fit the correla-tion between capacitance and moisture content.When measured by the resistance method,the test voltage had no significant effect on resistance value;the resistance value measured with dual -rod electrodes showed a sig-nificant correlation with the moisture content in tobacco leaves,and the quadratic polynomial model could be used to fit their correlation.The capacitance method was better than the voltage method in measuring tobacco moisture content.The simulation equation could obtain the highest fitting degree,when the capacitance was measured with single -pole electrode at 1 kHz of frequency.关键词
烟叶/含水率/单电极/双电极/电容法/电阻法Key words
Tobacco leaves/Single -pole electrode/Dual -rod electrode/Capacitance method/Re-sistance method分类
农业科技引用本文复制引用
罗丽琼,张天顺,鲁绍坤,李正风,张军情,袁伟,付思芮..电容法与电阻法测量烟叶含水率的对比研究[J].山东农业科学,2015,(8):100-103,4.基金项目
云南中烟工业责任有限公司项目“原料系统”［滇烟工科（2013）494号］；云南农业大学学生科技创新创业基金项目“信封烘箱法测定烟叶含水率的实验研究” （）
