Measuring principle The principle of alcohol meter should be based on the principle of density meter design, we know that the density of ethanol is less than water, and the corresponding alcohol (ethanol) the greater the density of that wine is smaller and the buoyancy is also The smaller. Alcohol meter is based on this difference and calculate the content of ethanol.

Alcohol is usually measured with alcohol table, alcohol table, also known as alcohol hydrometer. Alcohol table is based on the different concentrations of alcohol, the proportion of different, the floating body immersed in liquid wine liquor in the volume of different principles and manufacturing. When the alcohol meter into the liquor, the higher the concentration of alcohol, the alcohol sink more, the smaller the proportion; the other hand, the lower the concentration of alcohol, the alcohol less the sink, the greater the proportion

【Instructions】

When measuring the concentration, part of the alcohol into the measuring cylinder, be careful not to overfill, then the thermometer and alcohol table into the cylinder do not paste the cylinder wall, wait a moment, eyes look at the standard temperature and alcohol level, through the " Alcohol, temperature conversion table ", and then find out the standard (20 degrees alcohol). When measuring alcohol using an alcohol meter, care should be taken that a meniscus appears at the point of contact of the alcohol surface with the long axis of the alcohol due to surface tension. Therefore, when reading, we should be based on the water level

【Precautions】

 
The wine's temperature at 20 degrees, the most accurate measurement results.
If the temperature is not 20 degrees, need to check the alcohol table