FIELD: physics.
SUBSTANCE: proposed method comprises dipping magnetostrictive element into controlled fluid. Then, constant magnetising field and variable magnetic fields are induced in magnetostrictive element area to excite lengthwise oscillations of the latter and variable magnetic field is cut off. Now, resonance frequency of signal generated in coil by magnetostrictive element is determined. Then, fluid viscosity is calculated. Besides, prior to calculating fluid viscosity, magnetostrictive element temperature is controlled and compensation for temperature dependence of magnetostrictive element intrinsic oscillation frequency is performed.
EFFECT: higher accuracy of prompt control and reliability of operation, reduced overall dimensions.
10 cl, 6 dwg
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