基于T型差分亥姆霍兹麦克风阵列的ppb级多组分气体光声传感器研制

Key Points

• The aim is to develop a highly sensitive multi-component gas sensor using advanced photoacoustic techniques.
• Implemented a T-type differential Helmholtz microphone array.
• Utilized Chebyshev rational fractional-order filtering for data analysis.
• Focused on trace levels of methane detection.
• Achieved detection levels in the parts-per-billion range for methane.
• Demonstrated enhanced sensitivity compared to traditional methods.
• Indicated promising results for multi-component gas analysis.