Single vibrating tube transducers

Details Single vibrating tube transducers Single vibrating tube transducers

1988-11-18

1990-10-16

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

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

73 32A, G01F 184

Patent

active

049626710

ABSTRACT:
A single vibrating tube transducer comprises a tube (4) held between two nodal masses (6) which are attached to the tube (2) close to their respective centers of gravity (16). Each nodel mass (6) has an extended portion (14) which is attached at its free end to the opposing nodal mass by an arrangement of metal ligaments (18). Vibrating means (19) and sensing means (20) drive and detect the tube motion respectively. The tube has discontinuities (28) adjacent to the vibrating means (19) and the sensing means (20), to ensure the desired mode of resonance is achieved. Acoustic baffles (30) prevent inaccuracies due to internal acoustic resonance in the transducer.

REFERENCES:
patent: 3585843 (1971-06-01), Stansfeld
patent: 4760744 (1988-08-01), Simonsen et al.
patent: 4823614 (1989-04-01), Dahlin

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