Patent ID: 7716995

Claim:
A Coriolis flow meter ( 5 ) comprising one or more flow conduits ( 103 ), at least two pickoff sensors ( 105 , 105 ′) affixed to the one or more flow conduits ( 103 ), and a driver ( 104 ) configured to vibrate the one or more flow conduits ( 103 ), with the Coriolis flow meter ( 5 ) being characterized by: meter electronics ( 20 ) coupled to the at least two pickoff sensors ( 105 , 105 ′) and to the driver ( 104 ), with the meter electronics ( 20 ) being configured to vibrate the one or more flow conduits ( 103 ) of the flow meter with a first vibration frequency and in a first out-of-phase bending mode, measure a first vibrational response of the one or more flow conduits ( 103 ), with the first vibrational response being generated in response to the first vibration frequency, vibrate the one or more flow conduits ( 103 ) with at least a second vibration frequency and in the first out-of-phase bending mode, measure a second vibrational response, with the second vibrational response being generated in response to the second vibration frequency, and determine at least a mass flow rate and a viscosity using the first vibrational response and the second vibrational response.