Mass flowmeter for measuring flow rate of a fluid

Details Mass flowmeter for measuring flow rate of a fluid Mass flowmeter for measuring flow rate of a fluid

1997-08-29

1999-08-31

Dombroske, George

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

G01F 178

Patent

active

059456094

ABSTRACT:
A mass flowmeter for measuring the flow rate of a fluid by generating a Coriolis force in a measuring pipe includes a housing and a mechanism for supporting the pipe in the housing. The support mechanism includes a generally cylindrical hollow beam and first and second end support members. The measuring pipe is supported inside the hollow beam by the end support members. A vibrator for vibrating the measuring pipe and two sensors for detecting these vibrations are provided in the housing. The effective vibrating length of the measuring pipe is set shorter than the effective vibrating length of the support mechanism so as to set the vibration frequency of the measuring pipe higher than the natural frequency of the support mechanism, without reducing the rigidity of the support mechanism or using any additional mass.

REFERENCES:
patent: 5323658 (1994-06-01), Yao et al.
patent: 5365794 (1994-11-01), Hussain et al.
patent: 5381697 (1995-01-01), Van Der Pol
patent: 5398554 (1995-03-01), Ogawa et al.
patent: 5531126 (1996-07-01), Drahm
patent: 5796010 (1998-08-01), Kishiro

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