Methods and devices for check-up of content of contamination in liquid media with low absorbability

Bilyi, Olexander I.; Getman, Vasyl B.; Ferensovich, Yaroslav P.; Tetyuk, T. V.; Chkolnyi, A. K.

doi:10.1117/12.306267

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Optical Particle Counter Of Aerosoles1

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2006

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“…For determination of microparticles' content in liquids and aerosoles optoelectronic devices are widely used; their action is based on registration of scattered light [12,13]. Thus controlled parameters: the size and concentration of microparticles, are determined by measuring an intensity of scattered light by particles, that one by one pass stream of environment under examination in the registration area, with subsequent mathematical treatment of measurement results.…”

Section: Optical Particle Counter Of Aerosolesmentioning

confidence: 99%

Method of determination of aerosol microparticles' size distribution by iteration process

2006

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The determination algorithm of aerosol microparticles` size distribution by iteration process is described. In the described method the particle, registered by optoelectronic devices is characterized by parameters of amplitude and duration of impulse. Distribution of particles` size is determined from the measured functional dependence of number of registered particles from amplitude and duration of the proper electric impulses on the output photo-detector. Given dependence, within limits of statistical errors, is repeated when performing measurement series in the medium with identical optical parameters. It is linked by functional dependence to relative particles' fraction of different sizes, which is expressed by integral first kind Fredholm equation.

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Section: Optical Particle Counter Of Aerosolesmentioning

confidence: 99%