Simulation and design research on improving MPASS based on dual-wavelength detection technology

In response to improve the measurement accuracy of Multi-Parameter Aerosol Scattering Sensor (MPASS) in detecting fire smoke concentrations, this study proposes a method using dual-wavelength detection technology. Simulation results prove that the proposed method can effectively improve the measurement accuracy. Based on this, the effect of polarization angle on the measurement accuracy is discussed and the optimal polarization angle is selected. This method helps to reduce the false alarm rate of fire detectors.