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Is humidity high or low if the wet and dry bulb readings are close to each other?
Angel71798
The humidity is high. The air is saturated, so the water in the wet bulb is not evaporating and cooling the bulb.
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∙ 13y ago
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What is Psychometer?
An instrument that uses the difference in readings between two thermometers, one having a wet bulb and the other having a dry bulb, to measure the moisture content or relative humidity of air.
What assumption can you make about the amount of water vapor in the air if there is no difference between the wet and dry bulb readings of the psychrometer?
100 % relative humidity
What happens when the wet and dry bulb thermometers are close together?
The relative humidity is higher.
What happens to the humidity as the differences of the dry and wet bulb increase?
the relative humidity will decrease.
What are the most common types of measurements performed by industrial humidity instruments?
Wet-bulb/dry-bulb humidity, relative humidity, vapor pressure, and dew point are the most common types of measurements performed by industrial humidity instruments.
What is wet bulb and dry bulb thermometer?
It is used to ready humidity levels. You compare the readings off the wet and dry bulb, then find the humidity on the chart (see Sling Psychrometer).
What is Psychometer?
An instrument that uses the difference in readings between two thermometers, one having a wet bulb and the other having a dry bulb, to measure the moisture content or relative humidity of air.
What can you assume about the amount of water vapor in the air if there is no difference between the wet- and dry-bulb readings of a psychrometer?
100% Relative Humidity
What step should you follow to measure humidity with a psychrometer?
A sling psychrometer (or hygrometer) uses the difference in readings between a wet bulb thermometer and another with a dry bulb to measure the relative humidity. The bulb that is wet will cool by evaporation to the "dew point", which is the temperature at which the current humidity would be the maximum possible. Comparing that to the dry bulb (the general air temperature) on a comparative chart will yield the approximate relative humidity.
What assumption can you make about the amount of water vapor in the air if there is no difference between the wet and dry bulb readings of the psychrometer?
100 % relative humidity
What happens when the wet and dry bulb thermometers are close together?
The relative humidity is higher.
What is a pyschometer?
A psychrometer is a type of hygrometer used to measure the relative humidity in the air. It consists of two thermometers, one with a dry bulb to measure air temperature, and the other with a wet bulb covered in a water-soaked cloth to measure the cooling effect of evaporation. By comparing the temperature readings of the two bulbs, the relative humidity of the air can be determined.
How does a psychrometer measure relative humidity?
A sling psychrometer (or hygrometer) uses the difference in readings between a wet bulb thermometer and another with a dry bulb to measure the relative humidity. The bulb that is wet will cool by evaporation to the "dew point", which is the temperature at which the current humidity would be the maximum possible. Comparing that to the dry bulb (the general air temperature) on a comparative chart will yield the approximate relative humidity.
If the difference between a wet bulb and a dry bulb thermometer is great is the humidity low?
No, the humidity is high when wet and dry bulb temps are far apart.
What is the dew-point when the dry bulb temperature is 20C and the relative humidity is 17?
at 17% relative humidity the dew point is -5.8C at a dry bulb of 20C
What happens to the humidity as the differences of the dry and wet bulb increase?
the relative humidity will decrease.
What are the most common types of measurements performed by industrial humidity instruments?
Wet-bulb/dry-bulb humidity, relative humidity, vapor pressure, and dew point are the most common types of measurements performed by industrial humidity instruments.
