辣椒介电参数测量误差分析及改进研究
Journal of Agricultural Mechanization Research(2019)
Abstract
研究了一种平行极板电容用于辣椒电容测量的误差问题,确定了误差补偿方案和参数.通过改进测试系统和设定测试参数将系统误差降低到0.53%,等位环在极板间距30mm时边缘电容误差降低到0.56%.以辣椒丁为原料,确定了误差较低的检测状态,辣椒丁边长1~3mm时,误差为1.2%~1.4%.将干燥收缩与电容值进行补偿计算,干燥收缩造成的误差降低至1.12%~1.92%.实验表明:测试系统的总体误差低至4.05%~4.52%,重复误差为0.57%~0.62%.
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