The present invention relates to a sensing method based on the aerosol characteristic parameters of dual wavelength scattering signal and its application, and belongs to the technical field of fire alarm. The method of light scattering by the receiving optical power of two wavelengths, calculating the aerosol surface area concentration and volume concentration, aerosol (Sauter) obtained Sauter mean diameter, compared with the corresponding threshold, thus make the corresponding fire alarm signal. By this method, not only can judge the Sauter mean diameter of aerosol particle size, so as to identify whether there is a fire, a fire alarm timely and correctly or prompt the non fire signal and interference factors; the aerosol surface area concentration and volume concentration of aerosol was judged to be characteristic parameters detection, and to judge a kind of fire alarm signal, in order to take reasonable measures for the.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。
【技术保护点】
PCT国内申请，权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请，...
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