Recently, the launching ceremony of a major scientific instrument and equipment development project-“Development and Industrialization of laser pointer High Temperature and Humidity Sensors for Complex Operating Conditions” was held. At the launching ceremony, the person in charge of Aerospace Yilian Technology Development Co., Ltd. announced that it would take two years to break through four key technologies including the adaptive measurement technology for large dynamic range of humidity, and successfully develop the operating temperature of Laser high temperature and humidity sensor has finally achieved productization and industrialization.
It is understood that the main task of the “Laser High Temperature Humidity Sensor Development and Industrialization” project is to develop laser high temperature humidity sensors for complex working conditions. This type of laser humidity sensor is based on TDLAS technology (short for tunable semiconductor laser absorption spectroscopy technology) to achieve humidity measurement. The leader of the project expert group, the famous laser and nonlinear optics expert, and the academician of the Chinese Academy of Sciences Yao Jianzheng introduced that TDLAS technology is compared with traditional measurement methods, and uses this technology to measure humidity in high temperature environments. High, real-time measurement and other advantages, can achieve real-time monitoring of high temperature and humidity.
It is reported that the special development of this instrument is to solve the problem of accurate measurement of high temperature and humidity in many fields such as environmental protection and green laser pointer industrial process control. “The accuracy of humidity measurement in high temperature environments directly affects the calculation of total emissions in the environmental protection field or the efficiency of process control in the industrial production field. Taking environmental protection as an example, the measurement of the concentration of pollutants emitted by industrial boilers needs to measure the humidity of the flue gas. Therefore, the flue gas The accuracy of the moisture content measurement directly affects the total emissions and affects the assessment of national environmental protection indicators. “