Difference Between Hygrometers And Hydrometers. In this article, you will come to know what is hydrometer, what is hygrometer, what is the main difference between hydrometer and hygrometer, and a comparison between hygrometer vs hydrometer. Both are measuring devices. People often get confused because of their not so similar spellings.
What Is The Main Difference Between Hygrometer And Hydrometer?
The main difference between hygrometer and hydrometer is that the:
-Hygrometer is a measuring device that measures the humidity in the atmosphere (the amount of water vapour in the air).
-Hydrometer is a measuring device that measures the density of the specific gravity (a liquid floating in a liquid).
What Is Hygrometer?
The word hygrometer is derived from the Greek language ‘hygros’, which means wet or moist. The hygrometer is an instrument that is used to measure the humidity in the atmosphere. Humidity tells the likelihood of precipitation, dew, or fog.
There are many types of hygrometers and each of them uses different methods to measure the humidity. One of the popular and old hygrometers is known as the ‘Hair Tension Hygrometer‘. It consists of a hairpiece attached to the needle. When the humidity is high, the hair lengthens and when the humidity is low, the hair shortens. The needle indicates the level of humidity in the air.
Psychrometer is another type of hygrometer that consists of two thermometers. The mechanism between two thermometers tells the two different temperatures, which is used to calculate the readings.
Another type of hygrometer is an electrical hygrometer. The change in resistivity in a circuit component when the humidity changes is used to measure the level of humidity.
What Is Hydrometer?
The word hydrometer is derived from the Greek language ‘hydros’, that means water, hydrates or hydrogen. It is a measuring device that measures the density of the specific gravity (a liquid floating in a liquid). Generally, in other words, it is used to measure the density of the liquid.
A hydrometer is consists of 2 major parts; a cylindrical stem and a weighted bulb. It has a scale placed on the stem, that reads the measurement of the gravity or density of the liquid easily. The hydrometers are made up of glass, that’s why they should be handled with great care.
Comparison Between Hygrometer Vs Hydrometer:
-Hygrometer is used to measure the humidity.
-Hydrometer is used to measure the density of the liquid.
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