A hygrometer gauges atmospheric humidity by measuring the reaction of certain substances to changes in the amount of water vapor present in the air. Hygrometers are used in meteorology and to regulate humidity in buildings and industrial processes. The...

Used to measure RELATIVE HUMIDITY. It comprises two thermometers, one that measures the AMBIENT air temperature (the ‘dry bulb’) and another whose bulb is wrapped in gauze or absorbent material that is wet by water (the ‘wet...

A scientific instrument for measuring RELATIVE HUMIDITY. The term is another name for a...

Hygrometers are instruments used for measuring humidity. A simple form of a hygrometer is specifically known as a "psychrometer" and consists of two thermometers, one of which includes a dry bulb and the other of which includes a bulb that is kept wet...

Water and moisture in the product is rarely desirable, and the process industry has been measuring moisture and taking steps to lower humidity since Leonardo da Vinci and before. Some industrial process analyzers are of the probe type-capacitance, fiber optic, infrared. Others look...

ABSTRACT The oxygen sensitivity of krypton and Lyman-a hygrometers is studied. Using a dewpoint generator and a controlled nitrogen/oxygen flow the extinction coefficients of five hygrometers associated with the third-order Taylor expansion of the Lambert-Beer law around reference conditions for oxygen and for...