Background:
Carbon dioxide can absorb infrared light. This absorption can be used to measure carbon dioxide concentration per unit volume. Infrared carbon dioxide sensor can measure carbon dioxide concentration.
Infrared absorption of carbon dioxide is partly responsible for the greenhouse effect. The greenhouse effect is a feature of the atmospheres of all planets, causing the surface temperatures of planets to be higher than those of planets without atmospheres. All sunlight-absorbing gases contribute to the greenhouse effect. The most important greenhouse gases at the earth’s surface include water vapor, carbon dioxide and methane, all of which absorb infrared rays.
Principle:
A carbon dioxide sensor is a component that detects the concentration of carbon dioxide. Industrial production network learned that there are two kinds of carbon dioxide sensors commonly used in the market, one is a solid electrolyte gas sensor, the other is an infrared gas sensor. Among them, the principle of solid electrolyte CO2 sensor refers to the gas passing through the gas-sensitive material, the gas-sensitive material will generate ions, thus forming electromotive force, and measure the gas concentration by measuring the electromotive force. This CO2 sensor is widely used because of its high conductivity, sensitivity and good selection characteristics.
On the other hand, the principle of the infrared carbon dioxide sensor is to weaken the radiation energy transmitted through the measuring chamber according to the absorption of infrared radiation by CO2 in a specific band, and the attenuation degree depends on the content of CO2 in the measured gas.
Carbon dioxide sensors are not only used to control fresh air in smart homes and buildings, but are also widely used in agriculture and industry. Such as: planting greenhouse, livestock farm, beer, carbonated drinks, energy saving and environmental protection products, and underground production safety.
In fact, the use of CO2 sensors can be seen everywhere in our daily living environment, such as kindergartens, schools, office buildings, shopping malls, supermarkets, stations, hospitals and other public places. Monitoring carbon dioxide concentration through carbon dioxide sensor can improve air quality, thus improving study and work efficiency.
Product Introduction:
JXCT infrared carbon dioxide sensor is a gas sensor module using the NDIR infrared absorption detection principle introduced by analyzer and other instrument manufacturers. The concentration is determined by the absorption of infrared gases by the gas. The CO2 sensor adopts imported light source, special structure of the optical cavity and double channel detector to achieve space double optical path reference compensation. Microprocessor for signal acquisition, processing and output. With good selectivity, high sensitivity, no oxygen dependence, long life, low power consumption; With temperature control and pressure compensation function; It is compatible with various communication protocols; It also features UART, 485 outputs and analog current/voltage outputs, making it easy for customers to use in a variety of applications.