Research on Micro Nano Ionization Sensor for Detecting Harmful Gases
The excessive concentration of harmful gases affects the economic benefits and the safety of human life and property all the time.In order to accurately measure the concentration of these harmful gases,a new detection technology is fulfilled through the design and manufacture of micro nano ionization sensors.Benzene and toluene gases with multiple concentrations are tested under the experi-mental conditions of room temperature,atmospheric pressure and 70%relative humidity,and the corresponding recognition model is con-structed based on the characteristic noise intensity to recognize the gas concentration.The experimental results show that the fitting de-gree of the measured value and the real value of the sensor for the detection of harmful gases can reach more than 99%,which reflects a high detection accuracy.When detecting harmful gases,the sensor is in a reversible ionization equilibrium state,with good repeatability,no preheating need,safety and being non-toxic.Therefore,it is suitable for the detection of benzene gases,can meet the requirements of efficiency and accuracy,and has certain practicality.
国家科技期刊平台
NSTL
万方数据
