Well it is the same as what you measure a thermometer with which is Celsius and Fahrenheit which is C and F
humidity
The wet bulb thermometer is typically read lower than the dry bulb thermometer because the evaporation of water on the wet bulb cools the sensor by removing heat from it. This process is known as evaporative cooling and results in a lower temperature reading on the wet bulb thermometer compared to the dry bulb thermometer.
A psychrometer has two thermometers: a wet bulb thermometer and a dry bulb thermometer. It is used to measure relative humidity and can also determine dew point.
A dry bulb thermometer is an ordinary one. It's given this name when it's used to measure air temperature. A wet bulb thermometer takes into account humidity.
The two parts of a psychrometer is the dry-bulb thermometer and the wet-bulb thermometer.
psychrometer
the wet bulb is cooler
When a dry bulb thermometer and a wet bulb thermometer read the same temperature, it indicates that the air is saturated with moisture and the relative humidity is 100%. This means that the air cannot hold any more moisture, resulting in no difference in temperature readings between the dry bulb and wet bulb thermometers.
A psychrometer consists of two thermometers: a dry-bulb thermometer and a wet-bulb thermometer. It also uses a wick or cloth that is moistened with distilled water to acquire readings. These components work together to measure relative humidity in the air.
as the air passes over the wet bulb thermometer the water in the cloth evaporates. as the water evaporates the cloth cools. if the humidity is low the water will evaporate more quickly and the temperature reading on the wet bulb thermometer will drop. if the humidity is high only a little bit of water will evaporate from the cloth of the wet bulb thermometer and the change in temperature will be small.
A dry and wet bulb thermometer works via being moisturized in conjunction with a wet cotton swab which would evaporate. From there, the temperatures are recorded before more recordings for other temperatures are done with a psychometric chat regarding one's findings with the dry and wet bulb thermometer.
because the water causes the temperature to be lower