SUN Jing, ZHAO Hantao. Research on temperature modulation mode of gas sensor based on wavelet feature extraction[J]. 2019, (12): 40-42+46. DOI: 10.13873/j.1000-9787(2019)12-0040-03.
In order to effectively extract the response characteristics of the sensor to the measured gas
the wavelet transform is used to extract the wavelet response of the dynamic response signal of the sensor under different temperature modulation modes. The dynamic response signals of three flammable gases in different temperature modulation modes are combined with principal component analysis(PCA) and probabilistic neural network(PNN)for analysis and testing of a single micro-hot plate gas sensor. The results show that the extracted wavelet characteristic coefficient can better reflect the information of the measured gas.