当前经常应用的二氧化碳传感器大致分为两种，一种是固态电解质的，另一种是

The carbon dioxide sensors that are often used at present are roughly divided into two types, one is based on solid electrolyte, and the other is based on infrared principle. The principle of solid electrolyte sensor means that gas-sensitive materials can generate ions when passing gas, thereby forming electromotive force, and measuring electromotive force to measure gas concentration. Because this sensor has high conductivity and good selection characteristics, it is widely used. The principle of infrared carbon dioxide sensor is based on the absorption of CO2 to a specific band of infrared radiation, so that the radiation energy passing through the measurement chamber is weakened, and the degree of weakening depends on the CO2 content of the measured CO2 gas. The carbon <br>dioxide sensor is divided into solid electrolyte and infrared principle. There are two types of measurement methods based on the principle of non-dispersive infrared gas detection: single-beam single-wavelength measurement, dual-beam dual-wavelength measurement, and single-beam dual-wavelength measurement.

The co2 sensors currently used are roughly divided into two kinds, one is solid-state electrolyte, the other is infrared principle. The principle of solid-state electrolyte sensor refers to the gas-sensitive material can produce ions when passing through the gas, thus forming the electromotive force, measuring the electromotive force to measure the gas concentration, because of the high sensitivity of the sensor conductivity and good selection characteristics, has been widely used. The principle of infrared carbon dioxide sensor is based on CO2 absorption of specific band infrared radiation, so that the radiation energy through the measuring chamber is reduced, the degree of weakening depends on the CO2 content of the CO2 gas under test<br>Carbon dioxide sensors are divided into solid state electrolytes and infrared principles, non-dispersive infrared gas detection principle measurement methods are divided into three: single beam single wavelength measurement, dual beam double wavelength measurement and single beam dual wavelength measurement.

Currently, there are two kinds of carbon dioxide sensors, one is based on solid electrolyte, the other is based on infrared principle. The principle of solid electrolyte sensor is that the gas sensing material can produce ions when passing through the gas, so as to form the electromotive force, and measure the electromotive force to measure the gas concentration. Because of its high conductivity, high sensitivity and good selection characteristics, this kind of sensor has been widely used. The principle of the infrared carbon dioxide sensor is to weaken the radiation energy through the measurement chamber according to the absorption of CO2 to the infrared radiation of a specific band. The degree of weakening depends on the content of CO2 in the measured CO2 gas<br>Carbon dioxide sensors are divided into solid electrolyte and infrared principle, and non dispersive infrared gas detection principle is divided into three measurement methods: single beam single wavelength measurement, double beam double wavelength measurement and single beam double wavelength measurement.<br>