https://doi.org/10.15407/jopt.2018.53.161
Optoelectron. Semicond. Tech. 53, 161-168 (2018)
V.S. Kretulis, I.E. Minakova, P.F. Oleksenko, V.M. Sorokin
OPTOELECTRONIC NEFLOMETRIC METER OF THE ATMOSPHERIC ENVIRONMENT METEOPARAMETERS
The subject of this work was to develop and create an optoelectronic instrumental measuring tool for determination of meteorological parameters (coefficient of extinction (k-factor), meteorological range of visibility and transparency of atmosphere), of the state of water aerosols in the surface layer of ambient atmosphere, which allows one to obtain reliable data in a wide dynamic range of visibility for the automated operation. In the developed optoelectronic meter of meteorological parameters, the technical solution to the problem of ensuring noise immunity to external background radiation and reducing the measurement error has been found. Optoelectronic meter of meteorological parameters was constructed on the basis of the development of the optoelectronic sensor for the meteorological range of visibility previously developed by the authors, which was based on the concept of nephelometric method of direct scattering probe radiation in the investigated atmospheric environment. Algorithmically, operation of the meter is carried out in the automatic mode by cycles, each of which with the predefined time intervals compensates the background noise by using the Poncelet principle, measurement of the information signal and determination of the meteorological parameters with the exception of the methodological error caused by taking into account the losses along the line of vision, which reach values close to 20 %. In general, an automated optoelectronic nephelometric meter is characterized by high technical performances (meteorological range of visibility 15 m…48 km) and the operational capability of remote control.
Keywords: optoelectronic nephelometric meter of meteorological parameters, meteorological range of visibility, extinction coefficient, atmospheric transparency, compensation of background noise.