THEORETICAL PREREQUISITES FOR ONE MAGNETOOPTICAL METHOD OF MEASUREMENT OF THE VISCOSITY OF A FLUIDS. B. Kashevskii UDC 532.13 The viscosimetry method which is suitable for studying the kinetics of viscosity of a polymer solution in a drying film and is based on the measurement of the dynamics of light transmission of a two-layer system (excited by magnetic-field pulses and formed from sedimentation of noncolloidal ferromagnetic particles suspended in the fluid) has been substantiated. Optimum conditions for its implementation have been determined by computer modeling of the collective behavior of a system of particles. A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, Minsk, Belarus; email: firstname.lastname@example.org. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 2, pp. 9-11, March-April, 2003. Original article submitted October 4, 2002.