| 摘要 |
<p>The invention relates to means for environment monitoring and can be used for air quality express-test systems, mainly in vent ducts of buildings and constructions in order to detect sprayed finely dispersed organic powders and aerosols which contain pathogenic microorganisms dangerous for human beings. The inventive system comprises a decider, fibre waveguides, each of them being introduced into a corresponding inspection area in order to receive initiated signals of diffuse optical radiation and fluorescence from said inspection area, the other end of the waveguide being connected to a beam splitter. Said system also comprises an optical radiation source and photodetectors, each of them being provided with a spectral selective filter. One photodetector is provided with the spectral selective filter whose frequency bands correspond to the frequency bands of the initiated signals of diffuse optical radiation, the other photodetector being provided with the spectral selective filter whose frequency bands correspond to the frequency bands of the initiated signals of fluorescence.</p> |
