Vibronic-type transducer designed to generate vibration signals (s 1, s 2) corresponding to parameters of a flowing medium, particularly a mass flowrate, a density and/or a viscosity, said transducer comprising: - a transducer housing with a first housing end (100+) and with a second housing end (100#); and - a pipe arrangement extending within the transducer housing from its first housing end to its second housing end, wherein said arrangement is formed by at least two pipes, particularly identical in design and/or running parallel to one another, - wherein of said pipes at least a first pipe, particularly vibrating during operation, is designed as a measuring pipe that serves to conduct a flowing medium, and - wherein of said pipes a second pipe, particularly vibrating during operation, is mechanically connected to the first pipe forming a first coupling zone (#11, #12) on the inlet side by means of a first, particularly plate-shaped, coupler element and forming a second coupling zone (11#, 12#) on the outlet side by means of a second, particularly plate-shaped, coupler element; - wherein the first coupler element is arranged at the same distance from the first end of the transducer housing as the second coupler element is from the second end of the transducer housing, characterized - in that the first coupler element has a flexural rigidity around an imaginary longitudinal axis of the pipe arrangement connecting in an imaginary manner a center of gravity (M 25) of the first coupler element and a center of gravity (M 26) of the second coupler element, particularly intersecting in an imaginary manner the first coupler element with the same angle of intersection as the second coupler element, wherein said flexural rigidity deviates from a flexural rigidity of the second coupler element around said imaginary longitudinal axis of the pipe arrangement, particularly by more than 0.1 % of said flexural rigidity of the second coupler element, - in that the flexural rigidity of the first coupler element and the flexural rigidity of the second coupler element each contribute to an overall rigidity of the pipe arrangement which codetermines the natural frequencies of the pipe arrangement, - and in that at least a natural frequency of the pipe arrangement depends on the deviation of said flexural rigidities of the first and second coupler element. - a transducer housing with a first housing end (100+) and with a second housing end (100#); and - a pipe arrangement extending within the transducer housing from its first housing end to its second housing end, wherein said arrangement is formed by at least two pipes, particularly identical in design and/or running parallel to one another, - wherein of said pipes at least a first pipe, particularly vibrating during operation, is designed as a measuring pipe that serves to conduct a flowing medium, and - wherein of said pipes a second pipe, particularly vibrating during operation, is mechanically connected to the first pipe forming a first coupling zone (#11, #12) on the inlet side by means of a first, particularly plate-shaped, coupler element and forming a second coupling zone (11#, 12#) on the outlet side by means of a second, particularly plate-shaped, coupler element; - wherein the first coupler element is arranged at the same distance from the first end of the transducer housing as the second coupler element is from the second end of the transducer housing, characterized - in that the first coupler element has a flexural rigidity around an imaginary longitudinal axis of the pipe arrangement connecting in an imaginary manner a center of gravity (M 25) of the first coupler element and a center of gravity (M 26) of the second coupler element, particularly intersecting in an imaginary manner the first coupler element with the same angle of intersection as the second coupler element, wherein said flexural rigidity deviates from a flexural rigidity of the second coupler element around said imaginary longitudinal axis of the pipe arrangement, particularly by more than 0.1 % of said flexural rigidity of the second coupler element, - in that the flexural rigidity of the first coupler element and the flexural rigidity of the second coupler element each contribute to an overall rigidity of the pipe arrangement which codetermines the natural frequencies of the pipe arrangement, - and in that at least a natural frequency of the pipe arrangement depends on the deviation of said flexural rigidities of the first and second coupler element.