Dasymeter

Dasymeter at standard pressure

Dasymeter at reduced pressure

Historical drawing of a dasymeter (in german: "Fig. 109. Baroscope. (Apparatus for proving the buoyancy of air)")

A dasymeter is a densimeter used to measure the density of gases.

Construction and Use

It consists of a thin sphere made of glass that is immersed in the gas and weighed.

Principle

The density of samples, not its mass, controls the buoyancy effect of surrounding media. See also Measuring principle.

History of the dasymeter

Was invented in 1650 by Otto von Guericke.