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在不同温度下使用酒精计测定酒精浓度,会得到不同的读数。这是由于酒精水溶液的比重随着温度的变化而变化所造成的,温度升高,酒精水溶液的比重变小,对酒精计的浮力亦随之变小,酒精计因之下沉,从而使读数上升;反之则致使读数下降。通常酒精计上都标有使用温度,即“计温”国产酒精计的计温多定为20℃。在非计温下使用酒精计直接测读酒精浓度,
Using alcohol meter to measure alcohol concentration at different temperatures will result in different readings. This is due to the change of the specific gravity of the alcohol solution with the change of the temperature. As the temperature rises, the proportion of the alcohol solution becomes smaller and the buoyancy of the alcohol meter decreases. The alcohol meter is submerged so that the reading Rise; otherwise cause the reading to drop. Usually alcohol meter are marked with the use of temperature, that is, “meter temperature” domestic alcohol meter temperature set at 20 ℃. In non-temperature alcohol meter directly measured using alcohol concentration,