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It is generally believed that the concentration of carbon dioxide is one of the office and home air quality indicators, which can tell people whether they need ventilation. The CO2 detector described in this article not only displays the CO2 concentration level, but also compares the measured value with a preset threshold and triggers the relay when the limit is exceeded, thereby controlling the power peripherals such as the ventilation fan or the ventilation system to start working.
The best carbon dioxide detector carbon dioxide measurement device at present is a sensor made using a non-dispersive infrared absorption method. The application is mainly based on the absorption of carbon dioxide to the infrared wavelength of 4270 nm. The sensor measures the partial pressure of carbon dioxide in the air with high precision, especially the exact concentration of carbon dioxide at high concentrations.
If the carbon dioxide detector measures a lower concentration of carbon dioxide, it requires a longer optical path and requires a larger area sensor. Due to the high precision of the optics, the cost is very high. The wet electrolysis type carbon dioxide sensor is generally not a preferred sensor because of its stability and short life. Due to the poor stability and reproducibility of the gas-type CO2 sensor, the output is easily affected by environmental humidity, temperature, and dust, which also hinders its large-scale application.
Carbon Dioxide Detector Controls Indoor Carbon Dioxide Concentration
If the concentration of carbon dioxide exceeds the standard in the room, it will cause tiredness, inability to concentrate, and headaches. In order to better determine the concentration of carbon dioxide in the air, the application of carbon dioxide detectors is very important. The carbon dioxide detector detects the concentration index by the single chip microcomputer and triggers an alarm or starts the ventilation system when the limit value is exceeded, so as to ensure that the concentration of carbon dioxide in the air is within a safe range.