The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1990
Filed:
Dec. 22, 1987
Giorgio Bergamini, Bari, IT;
Nicola Campanale, Acquaviva Delle Fonti, IT;
Onofrio Cocozza, Bari, IT;
Abstract
A process is disclosed for the measurement of the mass flow-rate of fluid flowing inside a pipe made to oscillate at a certain frequency and at a constant and controlled amplitude by an impulse-generating unit. The process consists of making the pipe constantly oscillate at exactly at its twisting resonance frequency, counteracting the pipe's oscillations with a plurality of brakes, exerting a braking force on the pipe which is proportional to the pipe's shifting speed and which force has an amplitude larger than the amplitude of the Coriolis forces acting on the pipe, detecting the pipe's motion at two points along the pipe symmetrically disposed about its middle and where the greatest twisting deformation occurs, and measuring, after all distrubances have been eliminated, the differences in the amplitude of these two shifts, these differences being directly proportional to the flow-rate.