Specific conductance of conductingliquid is a constant when the component and temperature are changeless.
在成分和温度不变的情况下,导电液体的电导率是固定的。
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According to this, conductingliquid level can be gauged by measuring the conductance of the liquid with a pair of electrodes and this method has been proved to have a relative high-accuracy.
The iGlassware system works by coating each glass with a clear, conducting material, enabling it to measure exactly how much liquid has been sipped or guzzled.