A high stability infrared absorption CO2 sensor

Na Qi; Zhenting Wang; Tianhao Zhang

doi:10.1117/12.2644524

10 November 2022 A high stability infrared absorption CO₂ sensor

Na Qi, Zhenting Wang, Tianhao Zhang

Proceedings Volume 12301, 6th International Conference on Mechatronics and Intelligent Robotics (ICMIR2022); 123011C (2022) https://doi.org/10.1117/12.2644524
Event: 6th International Conference on Mechatronics and Intelligent Robotics, 2022, Kunming, China

Abstract

An infrared absorption CO₂ sensor with high stability is proposed. According to the practical application characteristics of long-time operation and unable to be calibrated regularly, the research is focused on improving the long-term stability of the sensor. The sensor uses high-precision machining and high-precision temperature compensation technology to improve the stability of infrared CO₂ sensor. After 1000h experiment, the test results show that the output voltage of the sensor is stable at ±1.53% FS without startup self calibration. Thus, the sensor has the characteristics of high precision, high reliability and good long-term stability.

Citation Download Citation

Na Qi, Zhenting Wang, and Tianhao Zhang "A high stability infrared absorption CO₂ sensor", Proc. SPIE 12301, 6th International Conference on Mechatronics and Intelligent Robotics (ICMIR2022), 123011C (10 November 2022); https://doi.org/10.1117/12.2644524

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