Patent ID: 6513393
Filing Date: 2003-02-04
Classification: G01F,G01N

Abstract:
A Coriolis mass flow/density meter for a medium flowing through a pipe, said Coriolis mass flow/density meter comprising:at least one flow tube for conducting said medium, said flow tube having an inlet-side end and an outlet-side end; support means fixed to said inlet-side end and said outlet-side end of the flow tube such that the at least one flow tube is capable of being vibrated; vibration exciting means for vibrating said at least one flow tube to generate inlet-side bending vibrations and outlet-side bending vibrations; measuring means for detecting said inlet-side and outlet-side bending vibrations of said at least one flow tube, said measuring means delivering a first measurement signal representative of said inlet-side bending vibrations of the flow tube and a second measurement signal representative of said outlet-side bending vibrations of the flow tube; means for delivering a third measurement signal during operation from which an instantaneous Reynolds number of the flowing medium can be derived; and evaluation electronics for receiving said first, second and third measurement signals and delivering a measured value representative of mass flow rate which is derived from said first, second, and third measurement signals.