With the advancement of the Internet of Things era, infrared gas sensors have been widely used in petrochemical industry, metallurgical industry, air pollution detection and other fields due to their excellent sensitivity, great stability, wide range of application and low maintenance cost. Because the infrared gas sensor is easily affected by the ambient temperature during the working process, in order to ensure the accuracy of the gas measurement process, it is necessary to insert the NTC bare chip for temperature monitoring to reduce the interference of temperature changes on the infrared gas sensor.

When the infrared gas sensor is measuring the gas concentration, the change of the ambient temperature will affect the physical properties of the sensor's components, such as the transmittance and reflectivity of the optical components, as well as the emission efficiency and response characteristics of the infrared light source and detector. Specifically:

First, abnormal temperature fluctuations can easily lead to the instability of the output power of the infrared light source, thus affecting the signal strength;

Second, temperature changes may cause deformation of the reflector cavity and cause the path of the infrared light source to shift.

The above factors will affect the final measurement results of the infrared gas sensor, and the use of DT series fast-response gold electrode NTC bare chip of EXSENSE Electronics Technology Co., Ltd. can effectively eliminate the error caused by temperature. In infrared gas sensor designs, NTC chip is typically mounted on a substrate and electrically connected to integrated circuit to enable real-time temperature data acquisition. When the integrated circuit receives the temperature feedback provided by the NTC, it can adjust the parameters through algorithms to ensure that the infrared gas sensor can maintain the consistency of measurement accuracy under different temperature conditions. In addition, when the sensor's signal processing unit receives the temperature data provided by the NTC chip, it uses a preset algorithm to adjust the original measured value to correct the data drift caused by temperature. With its excellent temperature sensing performance, the NTC bare chip improves the temperature adaptability of the infrared gas sensor, enabling it to operate normally under various temperature conditions.

The gold electrode NTC bare chip independently developed and mass-produced by EXSENSE Electronics has high accuracy (up to ±0.1℃), which can assist the efficient operation of the infrared gas sensor even in extreme environments and reduce the impact of temperature differences. In addition, the gold electrode NTC chip has a fast response speed and can reflect the ambient temperature changes of infrared gas sensor in time. Moreover, the small size of the gold electrode NTC bare chip can promote the development of infrared gas sensors in the direction of integration and miniaturization.