FIELD: instrument engineering.
SUBSTANCE: invention refers to integrated measuring instrument with measuring transducer of vibration type. Integrated measuring instrument, namely Coriolis mass flow metre/density metre and/or viscosity metre serves for measurement of at least one physical parametre of two-phase and more media flowing in the pipeline. It includes measuring transducer (1) of vibration type and electronic unit (2) electrically to measuring transducer. Measuring transducer (1) contains at least one straight gauge tube (10) inserted into pipeline that serves for measured medium flowing. Gauge tube (10) is connected with pipeline. Also transducer (1) includes exciting device (40) that influences gauge tube (10). It is performed with the possibility of gauge tube (10) putting into condition of vibration, and sensory device (50) for vibrations recording. During operation exciting device (40) transfers gauge tube (10) periodically and/or partially to lateral vibrations, namely to bending vibrations. During operation it also transfers gauge tube (10) periodically and/or partially to alternating with lateral vibrations or temporally applied torsion vibrations round imagined lag coaxial to gauge tube (10) performed in the form of main axis of gauge tube (10) inertia of longitudinal axis of the latter. Method is implemented by the said device.
EFFECT: high accuracy of physical parametre, mass flow, density, viscosity measurement.
15 cl, 9 dwg
Authors
Dates
2009-06-20—Published
2005-03-16—Filed