Vibronic-type transducer for a fluid flowing through a pipe wherein said transducer comprises: - a measuring tube , particularly a single measuring tube, which is essentially straight and vibrates during operation at a predefinable measuring tube vibration frequency, said tube being designed to conduct the fluid, -- wherein said measuring tube communicates with the pipe via an inlet tube section which enters into an inlet end (11#) of the measuring tube and via an outlet tube section which enters into an outlet end (12#) of the measuring tube -- and wherein the measuring tube , the inlet tube section and the outlet tube section are aligned with one another and with an imaginary longitudinal axis (L), - an exciter arrangement that acts on the measuring tube and causes the measuring tube to vibrate in such a way that the measuring tube at least intermittently produces torsional vibrations around an imaginary measuring tube longitudinal axis (L) with a current torsional vibration frequency, f excT' , particularly for the purpose of generating shear forces in the fluid - a sensor arrangement designed to measure vibrations of the measuring tube , as well as - a torsional vibration absorber fixed on the measuring tube which is allowed to vibrate, during operation, at least partially in a manner that is out of phase with the measuring tube producing the torsional vibrations, - wherein the torsional vibration absorber comprises a first rotating mass body of a predefinable moment of inertia, which is coupled with the measuring tube via a first torsional spring body of a predefinable torsional stiffness, as well as a second rotating mass body of a predefinable moment of inertia, which is coupled with the measuring tube via a second torsional spring body of a predefinable torsional stiffness. - a measuring tube , particularly a single measuring tube, which is essentially straight and vibrates during operation at a predefinable measuring tube vibration frequency, said tube being designed to conduct the fluid, -- wherein said measuring tube communicates with the pipe via an inlet tube section which enters into an inlet end (11#) of the measuring tube and via an outlet tube section which enters into an outlet end (12#) of the measuring tube -- and wherein the measuring tube , the inlet tube section and the outlet tube section are aligned with one another and with an imaginary longitudinal axis (L), -- wherein said measuring tube communicates with the pipe via an inlet tube section which enters into an inlet end (11#) of the measuring tube and via an outlet tube section which enters into an outlet end (12#) of the measuring tube -- and wherein the measuring tube , the inlet tube section and the outlet tube section are aligned with one another and with an imaginary longitudinal axis (L), - an exciter arrangement that acts on the measuring tube and causes the measuring tube to vibrate in such a way that the measuring tube at least intermittently produces torsional vibrations around an imaginary measuring tube longitudinal axis (L) with a current torsional vibration frequency, f excT' , particularly for the purpose of generating shear forces in the fluid - a sensor arrangement designed to measure vibrations of the measuring tube , as well as - a torsional vibration absorber fixed on the measuring tube which is allowed to vibrate, during operation, at least partially in a manner that is out of phase with the measuring tube producing the torsional vibrations, - wherein the torsional vibration absorber comprises a first rotating mass body of a predefinable moment of inertia, which is coupled with the measuring tube via a first torsional spring body of a predefinable torsional stiffness, as well as a second rotating mass body of a predefinable moment of inertia, which is coupled with the measuring tube via a second torsional spring body of a predefinable torsional stiffness. <EOS>