Automated path photometer
V.N. Uzhegov, A.P. Rostov, Yu.A. Pkhalagov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
uzhegov@iao.ru
Keywords: measuring of the spectral transparency of the atmosphere, interference filters, aerosol extinction coefficients, photometer controller, field measurements
Abstract
The description of an automated multi-wavelength path photometer, which serves for the convenience of transparency measurements of the atmospheric surface layer (the total length of optical path is 1000 meters) at 13 discrete points of the wavelength range 0.45÷4.6 mm. The fundamental difference of the photometer from the previous version is that all receiving modules with their interference filters and optimally matched optical radiation detectors are rigidly fixed in a circle on the fixed panel. At the center of this panel on the axis of a step motor, a small flat mirror is fastened, directing the incoming radiation to the appropriate collecting module according to the program.
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