Displacement sensors at opposite ends of at least one oscillating conduit produce output signals from which the drive component or the Coriolis component, or preferably both, are recovered. An oscillatory drive signal is derived from the drive component, and a mass flow signal is derived from the Coriolis...http://www.google.com/patents/US4911020?utm_source=gb-gplus-sharePatent US4911020 - Coriolis-type mass flowmeter circuitry
