Method for on-line fiber flow measurement

Optics: measuring and testing – For size of particles – By particle light scattering

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356342, G01N 2153

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active

052314634

ABSTRACT:
A method for using laser Doppler velocimetry to determine the mass flux (mass per area per time) of a polymer fiber stream without interfering with the flow of the fiber stream wherein a factor is determined for converting laser data rate information into stream flow mass flux values and to determine the diameter of a filament by measuring filament velocity without interfering with the flow of the filament.

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