Measurment » Humidity meter

Humidity meter

the environment and materials is very important in many cases, especially in industrial processes. It is useful to know some of the following definitions in measuring humidity.
Relative humidity : The amount of humidity referred to in meteorology and in everyday life is the relative humidity, which is the ratio of water vapor in a certain volume of air at a certain temperature t to the maximum weight of water vapor that can be in the same volume at temperature t . Is achieved.
Absolute humidity : The amount of water vapor per unit volume of air is called absolute humidity. Its unit is grams per cubic meter or milligrams per liter.
Dew point : If the air temperature reaches a point where the assumed air is one hundred percentSaturated with water vapor (constant pressure), such a degree is called the dew point.
Common humidity measuring instruments include manual and laboratory samples that have a shape si ترانسمیتر رطوبت milar to a multimeter and a probe with two electrodes. In industrial models, the probe is accompanied by a controller and, if necessary, an output of 4-20 mA is used to transmit moisture information.

The presence of a hygrometer in various laboratory and home environments and applications such as poultry and greenhouses is very important. For example, in the cold season, it is very important to know the humidity of the living space. Will bring. Humidity can be measured and controlled with an ambient humidity meter.

These fixed hygrometers can be mounted on the wall or used as a desktop to measure humidity and temperature in an enclosed environment such as a laboratory or hospital and office or work environment in industry. These hygrometers are usually equipped with embedded sensors and there is no sensor calibration. In some industrial and professional models of hygrometer, it is possible to calibrate the temperature and humidity sensors of the device. Also, in some models of hygrometer, it is possible to record the maximum and minimum value or set the set point for the alarm. To select the device, the following should be considered: