ELASTIC SENSITIVE SYSTEM OF DEVICE FOR MEASUREMENT OF MASS FLOW DISCHARGE Russian patent published in 2009 - IPC G01F1/84 

FIELD: physics, measurement.

SUBSTANCE: invention may be used in Coriolis transducers, intended for operation in pipelines of natural gas (methane) of low pressure (0.05…2.0 MPa). Vibration transducer comprises pipeline, which is bent as S-shaped in bending plane. Frame is connected rigidly with ends of rectilinear central section of pipeline, and by flat hinges - to base. Detector of Coriolis force by means of flat hinges installed on its both sides is installed between bracket rigidly fixed in the middle of central section, and frame. On central section, at equal distance from its middle, there are two additional brackets fixed, being connected with frame by flat hinges, which create mechanism for flat parallel displacement of central section. Pairs of additional flat hinges are fixed symmetrically to the middle of central section, accordingly, between frame and middles of loop sections of S-shaped pipeline, and its peripheral sections. Parts of central section between fixtures of frame and additional brackets, and also parts of peripheral sections of pipeline between fixture on base and flat hinges, are arranged in the form of bellows.

EFFECT: invention exceeds accuracy of measurement by means of stabilisation of space and stressed condition of central section due to exclusion of transfer of force actions caused by temperature and compression deformations of adjacent sections of pipeline.

4 cl, 11 dwg