hygrometer

Measures and displays temperature and humidity
LED alarm is activated when thresholds are exceeded
Calculates and displays the dewpoint
Long-lasting quality: long-time stable humidity sensor guarantees years of measuring

A Thermohygrometer, which can detect both temperature and humidity simultaneously, is used to calculate the humidity. Other factors, such as those used in research and development, depend on knowing the humidity level in other environments.

Air velocity Meter

1. Meteorological Instrument

The amount of water vapour in the air is measured with a hygrometer in meteorological science. Hygrometers of various major types are used to measure humidity.Mechanical hygrometers rely on the idea that organic materials, especially finer ones like human hair and goldbeater’s skin (ox gut), expand and contract in reaction to humidity. In a mechanical hygrometer, the spring moves the needle on the dial as the hair element contracts and expands.

2. Invention of Hygrometer

3. Hygrometer Working Principle

Leonardo da Vinci built a crude hygrometer in the year 1480. Francesco Folli made tremendous progress and created a useful apparatus model in the 1600s. The hygrometer’s technology had also seen considerable advancements thanks to Robert Hooke. Johann Heinrich Lambert, a Swiss polymath, created a new comprehensive version in 1755.
Evaporative cooling is the principle behind how hygrometers work. Water molecules absorb heat from the surface during evaporation, which causes water to become chilly when it leaves a surface. The wet bulb constantly displays a lower temperature than the dry bulb as a result of this effect. The quick cooling effect seen while bathing operates on the same principles.
Low humidity and dry air can lead to high evaporation, which lowers wet-bulb temperature.