Measuring transducer of vibration-type for a fluid flowing in a pipeline. The measuring transducer includes, in such case, a curved measuring tube for conveying the fluid, a counteroscillator having two counteroscillator arms, which are arranged on both sides of the measuring tube, and which, in each case, essentially follow the curve of the measuring tube, and which are coupled to one another in such a manner, that, during operation, they oscillate in phase with one another, and which are affixed to the measuring tube on the inlet side and outlet sides for forming corresponding coupling zones. The measuring transducer also includes an exciter mechanism, via which, during operation, the measuring tube and the counteroscillator are excitable to oscillations of opposite phase to one another. In such case, the counteroscillator arms are formed from a different material than the measuring tube, and the material of the counteroscillator arms has a thermal expansion coefficient essentially equal to that of the material of the measuring tube.