Vibronic-type transducer for a medium flowing through a pipe, said transducer comprising: - a measuring tube which vibrates at least temporarily during operation and serves to conduct the medium, wherein the measuring tube communicates with the pipe via an inlet pipe piece which opens into the inlet side and via an outlet pipe piece that opens into the outlet side; - a counter-oscillator, which is fixed on the measuring tube on the inlet side forming a first coupling zone (11#) and which is fixed on the measuring tube on the outlet side forming a second coupling zone (12#); - a first arm designed to generate bending moments in the inlet pipe piece, -- which is coupled with the inlet pipe piece and the measuring tube in an essentially rigid manner in the area of the first coupling zone (11 #), and -- which has a center of gravity, M 15, which is situated in the area of the inlet pipe piece, and - a second arm designed to generate bending moments in the outlet pipe piece, -- which is coupled with the outlet pipe piece and the measuring tube in an essentially rigid manner in the area of the second coupling zone (12#), and -- which has a center of gravity, M 16, which is situated in the area of the outlet pipe piece, characterized in that a mass, m 20, of the counter-oscillator corresponds to at least 5 times a mass, m 10, of the measuring tube, and in that each of the two arms (15, 16) has a mass, m 15, m 16, that is at least equal to the mass, m 20, of the counter-oscillator, and which corresponds to at least 10 times the mass, m 10, of the measuring tube. - a measuring tube which vibrates at least temporarily during operation and serves to conduct the medium, wherein the measuring tube communicates with the pipe via an inlet pipe piece which opens into the inlet side and via an outlet pipe piece that opens into the outlet side; - a counter-oscillator, which is fixed on the measuring tube on the inlet side forming a first coupling zone (11#) and which is fixed on the measuring tube on the outlet side forming a second coupling zone (12#); - a first arm designed to generate bending moments in the inlet pipe piece, -- which is coupled with the inlet pipe piece and the measuring tube in an essentially rigid manner in the area of the first coupling zone (11 #), and -- which has a center of gravity, M 15, which is situated in the area of the inlet pipe piece, and -- which is coupled with the inlet pipe piece and the measuring tube in an essentially rigid manner in the area of the first coupling zone (11 #), and -- which has a center of gravity, M 15, which is situated in the area of the inlet pipe piece, and - a second arm designed to generate bending moments in the outlet pipe piece, -- which is coupled with the outlet pipe piece and the measuring tube in an essentially rigid manner in the area of the second coupling zone (12#), and -- which has a center of gravity, M 16, which is situated in the area of the outlet pipe piece, -- which is coupled with the outlet pipe piece and the measuring tube in an essentially rigid manner in the area of the second coupling zone (12#), and -- which has a center of gravity, M 16, which is situated in the area of the outlet pipe piece,