电阻率和电导率换算 电阻率和电导率换算
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1\u3001500\u03a9•m=50000\u03a9•cm=0.05M\u03a9•cm\uff1b
2\u3001\u7535\u963b\u73871\u03a9•cm=\u7535\u5bfc\u73871/1\u03bcs/cm\uff1b
3\u30011/0.05M\u03a9•cm=20\u03bcs/cm\uff1b
4\u3001\u5373500\u03a9•m=20\u03bcs/cm\uff0c\u5c5e\u4e8e\u7eaf\u6c34\uff0c\u4e00\u822c\u5f0f\u4e00\u7ea7\u53cd\u6e17\u900f\u4ea7\u6c34\u3002
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\u7535\u5bfc\u7387\u7684\u57fa\u672c\u5355\u4f4d\u662f\u897f\u95e8\u5b50(S)\uff0c\u539f\u6765\u88ab\u79f0\u4e3a\u59c6\u6b27\uff0c\u53d6\u7535\u963b\u5355\u4f4d\u6b27\u59c6\u5012\u6570\u4e4b\u610f\u3002\u56e0\u4e3a\u7535\u5bfc\u6c60\u7684\u51e0\u4f55\u5f62\u72b6\u5f71\u54cd\u7535\u5bfc\u7387\u503c\uff0c\u6807\u51c6\u7684\u6d4b\u91cf\u4e2d\u7528\u5355\u4f4d\u7535\u5bfc\u7387S/cm\u6765\u8868\u793a\uff0c\u4ee5\u8865\u507f\u5404\u79cd\u7535\u6781\u5c3a\u5bf8\u9020\u6210\u7684\u5dee\u522b\u3002
1、500Ω•m=50000Ω•cm=0.05MΩ•cm;
2、电阻率1Ω•cm=电导率1/1μs/cm;
3、1/0.05MΩ•cm=20μs/cm;
4、即500Ω•m=20μs/cm,属于纯水,一般式一级反渗透产水。
拓展资料:
电阻率:是用来表示各种物质电阻特性的物理量。某种材料制成的长1米、横截面积是1平方毫米的导线的电阻,叫做这种材料的电阻率。国际单位制中,电阻率的单位是欧姆·米,常用单位是欧姆·平方毫米/米。
电导率:水的导电性即水的电阻的倒数,通常用它来表示水的纯净度。
电导率是物体传导电流的能力。电导率测量仪的测量原理是将两块平行的极板,放到被测溶液中,在极板的两端加上一定的电势(通常为正弦波电压),然后测量极板间流过的电流。根据欧姆定律,电导率(G)--电阻(R)的倒数,是由电压和电流决定的。
电导率的基本单位是西门子(S),原来被称为姆欧,取电阻单位欧姆倒数之意。因为电导池的几何形状影响电导率值,标准的测量中用单位电导率S/cm来表示,以补偿各种电极尺寸造成的差别。
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