Thermometer Shrink

- May 15, 2019-

A thermometer is used to measure body temperature. When reading, take it out of the armpit or the mouth, then the temperature of the glass bulb below it will decrease; in order to make his reading still represent the body temperature, special design must be made, this is the glass bubble and the straight glass tube. Very thin tubules - shrinkage. When measuring body temperature, the mercury in the glass bubble expands with the increase of temperature, and is squeezed into the straight tube through the thin tube; when the thermometer leaves the human body, the mercury becomes cold and shrinks, and the mercury in the thin tube cannot be returned to the glass bubble, so it It still represents the temperature of the human body.

Digital Electronic Thermometer