- The instrument used to measure humidity is a hygrometer.
- Humidity refers to the amount of water vapour in the air. If the humidity is higher, the water content in the air is higher.
- Evaporative cooling is the major principle behind the working of hygrometers. They use the unit milliliters per cubic centimeter for the measurement of humidity. In some other cases, they use a percentage to report the relative humidity of the air.
- There are different types of hygrometers
Mechanical hygrometer
Electrical hygrometer
Dew-point hygrometer
Psychrometer
- There are also capacitive hygrometers, crystal hygrometers, resistive hygrometers, thermo hygrometers, etc.
- Hygrometer instruments rely on the measurements of quantities like:
Temperature, pressure, mass, mechanical or electric charge.
- Hygrometers are also used in incubators, saunas, museums, wooden musical instruments, etc.
- It has a lot of applications in agriculture and storage.
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