An aerometer is an instrument designed to measure the density (among other parameters) of the
air
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing f ...
and some gases.
The word aerometer (or Ärometer, from Ancient Greek ἀήρ -aer "
air
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing f ...
" and μέτρον -métron "measure, scale") refers to various types of devices for measuring or handling of gases. The instruments designated with this name can be used to find: the density, the flow, the amount or some other parameter of the
air
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing f ...
or a determined gas.
Several different designs of aerometer have been developed for the study of speech. These make use of a mask fitting closely to the speaker's face, usually with a partition separating airflow from the nose from airflow from the mouth. Various designs of transducer convert the flow of air into electrical signals.
Another instrument called
areometer (from Ancient Greek ἀραιός -araiós "
lightness" and μέτρον -métron "measure, scale"), also known as
hydrometer, used for measuring liquids
density
Density (volumetric mass density or specific mass) is the substance's mass per unit of volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' can also be used. Mathematical ...
, is often confused with the term aerometer here defined.
Types of aerometers
* Hall aerometer.
[Marshall Hall: ''Description of an Aerometer for making the necessary Corrections in Pneumatic Experiments, for reducing the Volumes of the Gases to a given Standard.'' The Journal of science and the arts, Band 5, J. Eastburn & Co., 1818, Seite 5]
Online bei Google Books
/ref>
* Hutchinson aerometer.
* Struve aerometer.
* Scheurer aerometer.
* Smith aerometer.
* Frøkjær-Jensen aerometer.[Børge Frøkjær-Jensen, Medizinunternehmen]
Online
References
{{reflist, 30em
Gases
Measuring instruments