Instrument Used To Measure Humidity In Air
Weather satellites are used to photograph and track large scale air movements.
Instrument used to measure humidity in air. Humidity refers to the amount of water vapor that is present in the air. Several ways exist to express the level of air humidity each providing a different piece of information. Factors such as air temperature and controls over evaporation affect the humidity of a parcel of air. A barometer is a weather instrument used to measure air pressure.
Of the two main types of barometers mercury and aneroid aneroid are more widely used. A compass is a navigational instrument for finding directions. A weather balloon measures weather conditions higher up in the atmosphere. Digital barometers which use electrical transponders are used in most official weather stations.
Italian physicist evangelista torricelli is credited with inventing the barometer in 1643. A hygrometer is an instrument used to measure the amount of water vapor in air in soil or in confined spaces. Humidity measurement instruments usually rely on measurements of some other quantities such as temperature pressure mass a mechanical or electrical change in a substance as moisture is absorbed. We discuss choices and accuracy of equipment used to measure indoor humidity level as a step in avoiding indoor condensation trouble mold and other indoor pathogen growth in buildings.
One common kind of hygrometer is a psychrometer a device. The instrument that measures humidity is called a hygrometer a hygrometer is an instrument that measures relative humidity in the air. This article describes tools and instruments used to measure indoor humidity relative humidity and temperature also giving the dew point.