The present invention is a Coriolis flowmeter has an outer Rotor 307 is disposed in a housing 301 having a rotational axis coaxial with the merchant request (341). Rotary Coriolis 314 is disposed in the demand of the external rotavirus and has a rotational axis coaxial with the rotational center merchant. It has a plurality of through holes 312 in Coriolis ride, each of these through holes extend from the outer periphery of the all-Chicks stiffness to the stiffness requirements of all Teller center. Having a plurality of through holes 309 ride in the outside, each of these holes extend to a request of the outside Rota from the outer periphery of the outer Rota one of the plurality of through holes in at least a part of the through hole of the outer Teller the Coriolis Rota and it is aligned. Fluid inlet 302 extends the fluid to the outlets 304 of the flow meter through the through holes of the outer and Coriolis Teller Teller. The rotavirus is a fluid is supplied into the through hole of rotor and rotates around the rotational axis when passing. To the Coriolis force and simultaneous rotation of the two rotavirus generated by the fluid through the Teller boy dancer roller aperture Corey all Teller will be biased from the respective outer Teller by about the rotational axis. Sense coils 323 and 324 and the magnet (316, 344) generates an output signal indicating the mass flow rate of each size bias of the Coriolis flow fluid and Teller.