CORIOLIS-TYPE METER Russian patent published in 2014 - IPC G01F1/84 

FIELD: instrumentation.

SUBSTANCE: device incorporates the torsion oscillation exciter arranged between flow rate metering tubes fitted at inlet connector. It is equipped with torsion oscillation receiver arranged between said tubes in outlet connector. It includes the unit designed to calculate torsion oscillation transfer function with torsion oscillation transfer function approximation unit connected to its output. Besides, it incorporates the temperature computation unit. Note here that wideband signal two-channel oscillator generates signal in first channel about resonance frequency of bending vibrations and in second channel - about resonance frequency of torsion oscillations. Note here that second channel output is connected to torsion oscillation exciter. Torsion oscillation receiver is connected with transfer function computation unit input. Inputs of temperature computation unit are connected to appropriate outputs of bending and torsion oscillation approximation unit. Its outputs are connected to appropriate inputs of the unit designed to calculate torsion oscillation transfer function.

EFFECT: higher accuracy and stability of measurements of fluid physical parameters, ie mass flow rate, fluid density, viscosity and temperature.

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