A conduit included in a Coriolis force mass flowmeter has two generally straight end sections with central axes disposed on a first plane and respectively extending from two secured extremities of the conduit, and a curved midsection with central axis disposed intermediate two parallel planes perpendicular to the first plane and respectively including the central axes of the two generally straight end sections, which curved midsection connects the two generally straight end sections to one another, wherein an electromagnetic vibrator vibrates the two generally straight end sections relative to one another, and a pair of motion sensors respectively measure flexural vibrations of the two opposite halves of the curved midsection of the conduit.