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据《北方园艺》2014年第5期《“灵武长枣”的介电特性和内在品质的关系》(作者郭晓丹等)报道,以宁夏地方特色农产品“灵武长枣”为研究对象,在货架期间利用LCR测试仪在特征频率223.8 KHz(105.35 KHz)下测试了长枣并联等效电容(Cp)、电导(G)、阻抗相角(θ)、复阻抗(Z)等电学指标,并对与长枣的果皮破裂强度、脆度、果肉坚实度等物理力学品质指标和水分含量、可滴定酸含量、可溶性固形物含量等化学品质指标进行了比较分析,以筛选出相关性强的特征电学参数;在此基础上对电学参数与品质指标的变化规律进行了回归分析,以探讨基于介电特性的“灵武长枣”无损检测、品质评
According to “Northern Gardening” No. 5, 2014 “” Lingwu long date “the relationship between dielectric properties and intrinsic quality” (the author Guo Xiaodan et al) reported that Ningxia local characteristics of agricultural products During the shelf life, parallel capacitance (Cp), conductance (G), impedance phase angle (θ), complex impedance (Z) and so on were measured by LCR tester at the characteristic frequency of 223.8 KHz (105.35 KHz) Electrical indexes and physical and chemical indexes such as rupture strength, brittleness and firmness of pulp, comparative analysis of chemical quality indices such as moisture content, titratable acid content and soluble solid content were carried out to screen the correlation Based on which the regression analysis of the change rule of the electrical parameters and the quality index was carried out to discuss the non-destructive testing of “Lingwu longzao” based on the dielectric properties and the quality evaluation