With the development of the economy and the improvement of people's quality of life, more and more people begin to pay attention to health and environmental protection. At present, most people have a certain understanding of formaldehyde and PM2.5, etc., and at the same time, they will also target certain measures, such as placing air purifiers in the home to eliminate formaldehyde and PM2.5, and purify the air in the home. But there is another recurring hazard that is easily overlooked, and that is carbon dioxide.
When the carbon dioxide level in the air is normal, it is not harmful to the human body, but after exceeding a certain level it will affect people's respiratory system. This is because excess carbon dioxide increases the concentration of carbonic acid in the blood, which makes it more acidic and produces acidosis. So what level is normal?
In the natural environment, the normal level of carbon dioxide in the air is 0.04 per cent (400 PPM), sometimes reaching 500 PPM in large cities. indoors without people, the carbon dioxide concentration is usually around 500 to 700 PPM. The human body is very sensitive to the increase of carbon dioxide in the air, and every 0.5 per cent increase in carbon dioxide content causes a significant reaction in the body.
There are no air purifiers that can effectively filter carbon dioxide, but people can control it in advance. Through a detector equipped with a carbon dioxide sensor in order to know the indoor carbon dioxide concentration in real time.
The 5th ECOTECH CHINA Shanghai International Air & Fresh Air Exhibition will be held in China National Convention and Exhibition Centre from 3 to 5 June this year, Audiowell will introduce a new product - CO2 sensor, the product uses infrared light in the air to get the precise CO2 concentration by the loss of output signal.
GC0001-000 is a CO2 sensor based on the principle of non-spectral infrared absorption. Its working principle is to determine the intensity and wavelength of infrared light irradiated into the air, absorbed by the carbon dioxide in the air, the receiver tube by detecting the intensity of the absorbed infrared light to output the corresponding electrical signal. The receiver tube detects the intensity of the absorbed infrared light and outputs the corresponding electrical signal. The sensor internally filters and amplifies the electrical signal, and the mcu calculates the concentration of carbon dioxide in the air through an algorithm, and then outputs analogue signals in the form of PWM and digital signals in the form of a UART serial port.
Product features:
- High measurement accuracy
- Wide measuring range
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