Transducer for a vibronic measuring system and vibronic measuring system formed therewith

A transducer for a vibronic measuring system, the transducer comprising:

• a tube with a lumen covered by a wall, the tube extending from an inlet side first end to an outlet side second end, wherein the tube is configured to be traversed by a fluid in a flow direction from the inlet side first end toward the outlet side second end;
• a first converter unit, which comprises:
• a displacer element;
• a first connection element;
• and
• a second connection element,
• wherein the first connection element of the first converter unit is mechanically connected to the displacer element of the first converter unit, and wherein the second connection element of the first converter unit is mechanically connected to the displacer element of the first converter unit at a distance from the first connection element in a direction of an imaginary longitudinal axis of the displacer element;
• an electromechanical exciter arrangement configured to excite and sustain forced mechanical resonance vibrations of the first converter unit;
• and
• a sensor arrangement configured to detect mechanical vibrations of the first connection element and mechanical vibrations of the second connection element, wherein the sensor arrangement is configured to generate both a first vibration signal representing at least torsional vibrations of the first connection element and a second vibration signal representing at least torsional vibrations of the second connection element,
• wherein the first converter unit is disposed within the tube and is thus mechanically connected to the tube such that:
• the displacer element is disposed inside the lumen of the tube;
• and
• each of the first and second connection elements is at least partially arranged inside the wall of the tube and mechanically connected to the tube such that the second connection element is at a distance from the first connection element in a direction of an imaginary longitudinal axis of the tube and/or an imaginary envelope line of the wall of the tube and/or is arranged downstream of the first connection element in the flow direction, and
• wherein the first converter unit is configured to be contacted by the fluid inside the lumen of the tube and to be enabled to vibrate such that both of the first and second connection elements and the displacer element are being elastically deformed at least proportionately in each case such that each of the first and second connection elements is at least proportionately twisted about a respective imaginary main axis of inertia and/or that the displacer element is bent out of a static rest position at least proportionately in a direction of a diameter of the tube that is perpendicular to an imaginary main axis of inertia of the first connection element and/or to an imaginary main axis of inertia of the second connection element.