Hygrometer

Hygrometer: measuring air humidity

A hygrometer is a device that is used to measure the relative humidity of atmospheric air. Relative humidity is the ratio of air humidity to the maximum humidity that air can hold at a given temperature and pressure. Relative humidity measurement is important in many fields, such as meteorology, construction, and food and pharmaceutical manufacturing.

There are different types of hygrometers, but the two most common are the dew-point hygrometer and the wet-and-dry bulb hygrometer.

A hygrometer, which determines air humidity by the dew point, works by cooling a polished surface until water vapor from the atmosphere begins to precipitate on it. The temperature at which this occurs is called the dew point. Knowing the dew point temperature, you can easily calculate the relative humidity.

A psychrometer consists of two thermometers attached next to each other. One of them is wrapped in a piece of cambric, the lower edge of which is lowered into a vessel with distilled water. This thermometer registers a lower temperature than the second thermometer due to the cooling effect of evaporating water. Relative air humidity can be calculated from the difference in measured temperatures.

Hygrometers are used in many fields. For example, in meteorology they are used to measure the relative humidity in the atmosphere, which helps predict the weather. In construction, hygrometers help control air humidity in buildings, which helps prevent the growth of mold and mildew. In the food and pharmaceutical industries, hygrometers are used to control humidity to help maintain the quality and shelf life of these products.

In conclusion, a hygrometer is an important device that helps in monitoring the relative humidity of the air. Different types of hygrometers can be used in different areas, and their correct use can help maintain food quality and avoid the negative effects of humidity on the environment.

A hygrometer is a device for determining the relative humidity of atmospheric air, i.e. the ratio of the humidity of the surrounding air to the humidity of saturated water vapor at the same temperature and pressure.

In a hygrometer, which allows you to determine air humidity by the dew point (dew-point hygrometer), the temperature of the polished surface decreases until water vapor from the atmosphere begins to precipitate on it. Knowing the temperature of this point (it is called the dew point), you can easily calculate the relative humidity of the air.

A wet-and-dry bulb hygrometer consists of two thermometers attached next to each other; the reservoir of one of the thermometers is wrapped in a piece of cambric, the lower edge of which is lowered into a vessel with distilled water. This thermometer registers a lower temperature than the second thermometer due to the cooling effect of evaporating water. Relative air humidity can be calculated from the difference in measured temperatures.

A hygrometer is a device that allows you to measure the degree of saturation or, in other words, air humidity, since it is humidity that is responsible for the degree of vapor saturation in the air. Hygrometers are quite diverse in their design and scope of application. However, they all have one thing in common - the principle of operation. Regardless of the type of hygrometer used, the operating principle is always the same.

Hygrometers use different division scales: There are 6 types of hygroscopic division scale: 0%, 30%, 50%, 70%, 90%, 100%. The clock scale of the hygromet has divisions every 2 hours: from 20 to 150 percent, where 80 is the percentage value of the ideal state of the device, the rest is humidity levels.

Hygrometers have become a popular element in many industrial areas, retail outlets, warehouses and homes. They allow people to control the level of water in the air to ensure comfort, safety and efficiency. But what is a hygrometer? How does he work? And what types of hygrometer are there? You will learn about all this