psychrometer

The instrument used to record relative humidity is the psychrometer.

Kurt was at the psychrometer, working on a weather report, when Wiedermann returned.

These quantities are readily estimated by using a sling psychrometer.

Over the rifle is a sling psychrometer, pointing from lower right to upper left.

Technically, the temperature registered by the dry-bulb thermometer of a psychrometer.

A psychrometer is a device that includes both a dry-bulb and a wet-bulb thermometer.

It is partly affected by humidity, which can be measured by a sling psychrometer.

The same principle is used to measure the dew point (using a sling psychrometer, a more accurate instrument than the human finger).

With a growing demand on the amount of measurements taken the psychrometer is now replaced by a dewpoint gauge known as a dewcheck.

This property may be exploited to the advantage of the psychrometer by avoiding the need to maintain an ice bulb under freezing conditions."

Temperature and humidity readings have been collected using a sling psychrometer, a simple device containing two mercury thermometers.

The psychrometer, sometimes called the wet-and-dry bulb hygrometer, consists of two thermometers mounted side by side.

A sling psychrometer works when the scientist spins two thermometers through the air, one plain and one with a wet cloth around it.

Alternatively a whirling psychrometer uses the same principle, however the two thermometers are fitted into a device that resembles a ratchet or football rattle.

A psychrometer consists of two thermometers, one which is dry and one which is kept moist with distilled water on a sock or wick.

Where most unstaffed weather stations have undergone technology upgrades, consistent use of the sling psychrometer has helped provide scientific precision to the Mount Washington climate record.

The Stevenson screen holds instruments that may include thermometers (ordinary, maximum/minimum), a hygrometer, a psychrometer, a dewcell, a barometer and a thermograph.

A sling psychrometer requires manual operation to create the airflow over the bulbs, but a powered psychrometer includes a fan for this function.

The cloth is wetted and the water is then made to evaporate by blowing air over the cloth with a fan or by whirling the psychrometer in the air.

They watch for spot fires (fire that crosses the fireline) and take weather readings using a sling psychrometer or a kestral typically every hour and relaying them up the chain of command.

According to the World Meteorological Organization Guide, "The principle of the heated psychrometer is that the water vapour content of an air mass does not change if it is heated.

The sling psychrometer, where the thermometers are attached to a handle or length of rope and spun around in the air for a few minutes, is sometimes used for field measurements, but is being replaced by more convenient electronic sensors.

One of the most precise types of wet-dry bulb psychrometer was invented in the late 19th century by Adolph Richard Aßmann (1845-1918); in English-language references the device is usually spelled "Assmann psychrometer."

A widely used device for measuring wet and dry bulb temperature is a sling psychrometer, which consists of a pair of mercury bulb thermometers, one with a wet "sock" to measure the wet-bulb temperature and the other with the bulb exposed and dry for the dry-bulb temperature.