| 摘要: |
| 运用伏安法测定了不同频率下冰鲜和解冻鲫鱼的阻抗 ,分析了其阻抗随频率变化的特点。结果表明 :冰鲜和解冻鲫鱼的阻抗均随频率增大而减小 ,频率从 1kHz增大到 16kHz时 ,冰鲜 1,3,10d鲫鱼的阻抗相对变化值为 5 1% ,4 8 5 %和 33 9% ,冷冻 1,3,10d后的解冻鲫鱼的阻抗相对变化值为 16 0 % ,14 3%和 14 4 % ;冰鲜鲫鱼的阻抗相对变化值明显大于解冻鲫鱼。依据阻抗相对变化值 >2 0 %或 <2 0 %可以区分冰鲜和解冻鲫鱼。 |
| 关键词: 冰鲜 解冻鲫鱼 频率 阻抗相对变化值 |
| DOI：10.11841/j.issn.1007-4333.2004.05.127 |
| 修订日期：2004-06-14 |
| 基金项目:山东省出入境检验检疫局 (SK12 1 2 0 0 3) |
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| Electric conduction property of unfrozen and frozen-thawed crucian carp |
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| Abstract: |
| Property of impedances of unfrozen and frozen-thawed crucian carp was measured under different frequencies. Although impedances of both unfrozen and frozen-thawed crucian carp decreased as frequencies increased, change value of impedance of unfrozen crucial carp was evidently more than that of frozen-thawed ones. Therefore, it is feasible to differentiate unfrozen and frozen-thawed crucian carp using change value of their impedances. |
| Key words: unfrozen crucian carp,frozen-thawed crucian carp,frequency,change ratio of impedances |
