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Basic knowledge of temperature and humidity sensor

by:Rika Sensors     2021-09-07
Introduction to the simple principle of temperature and humidity:

Temperature and humidity sensors refer to equipment or devices that can convert temperature and humidity into electrical signals that can be easily measured and processed.



Static force constant of temperature and environmental humidity:

1. Temperature

The electrostatic force constant that measures the heat and cold of a block is one of the seven basic physical quantities in the International System of Units. In manufacturing and scientific research, many physical changes and the whole process of organic chemistry are all carried out at a certain temperature, and everyone's daily life is also closely related to it.



2. Environmental humidity

Environmental humidity has been closely related to daily life a long time ago, but it is difficult to express it in terms of total number.



3. Air humidity

In the quality law, the environmental humidity is defined as the 'quantity of the object image'. The environmental humidity specifically referred to in daily life is the air humidity, expressed in RH%. All in all, it is the percentage of the amount of water vapor (water vapor pressure) in the vapor (usually in the air) in the saturated state (water vapor pressure) between the two gases under the same conditions.



4. Humidity

refers to the specific amount of water vapor contained in the gas of the enterprise capacity, generally in grams as the enterprise. Temperature has an immediate hazard to humidity. Under normal circumstances, the higher the temperature, the greater the amount of water vapor and the greater the humidity; conversely, the lower the humidity.



5. Saturated humidity

Under a certain temperature, enterprise capacity, the maximum amount of water vapor that can be contained in the air. If it exceeds this level, unnecessary water vapor will solidify and become water droplets. At this time, the relative humidity of the air becomes saturated humidity. The saturated humidity of the gas is not fixed and will not change, it changes with the change of temperature. The higher the temperature, the greater the amount of water vapor that can be contained in the enterprise's capacity gas, and the greater the saturated humidity.



6. Missing points

Refers to a gas with a certain amount of water vapor (humidity). When the temperature drops to a certain level, the water vapor contained in it will be saturated (saturated humidity) and just start to vaporize into water. This type of condition is called essence Dew. The temperature at which water vapor first vaporizes and turns into water is called the 'leak point temperature' and is generally called the 'leak point'. If the temperature drops below the leak point again, the water vapor in the Super League saturated state in the gas will solidify into water droplets on the surface of the block. In addition, wind is closely related to the temperature and humidity in the air, and it is also one of the key elements that endanger the change of gas temperature and humidity.


Ruiyi Card is committed to the development and provision of cost-effective intelligent IoT environmental monitoring products and services, and provides users with accurate, high-quality, and intelligent measuring instruments and solutions. Including: wind energy measurement, solar radiation measurement, air quality monitoring, hydrometeorological monitoring, soil wall condition measurement, water quality monitoring, data acquisition recorders and various weather stations and monitoring sites. Products are widely used in meteorological and environmental monitoring fields such as photovoltaic power generation, smart agriculture, aquaculture, sewage treatment, air quality, wind power generation, and traffic monitoring.





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