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Machine translation
1. (WO1981001052) MASS RATE OF FLOW METER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001052    International Application No.:    PCT/US1980/001346
Publication Date: 16.04.1981 International Filing Date: 10.10.1980
IPC:
G01F 1/80 (2006.01)
Applicants:
Inventors:
Priority Data:
84391 12.10.1979 US
Title (EN) MASS RATE OF FLOW METER
(FR) DEBITMETRE A ROUE HELICOIDALE
Abstract: front page image
(EN)An angular momentum type flowmeter has an unrestrained rotor (37) and a restrained turbine (40). Sensing means includes a magnetic coupling (47, 53) to generate a signal in a sensing coil (17) when a point on the rotor passes a point on the turbine. The sensing coil coaxially surrounds the turbine. A bucking coil (81) is connected electrically in series with the sensing coil but is magnetically isolated therefrom. A copper sheet formed as a shorted turn (77) is disposed between the sensing coil and the bucking coil to compensate phase shifts in the offsetting voltages produced in the coils by electromagnetic interference.
(FR)Debitmetre du type a moment angulaire possedant un rotor (37) non freine et une turbine (40) freinee. Des moyens de detection comprennent un couplage magnetique (47, 53) produisant un signal dans une bobine (17) de detection lorsqu'un point du rotor passe devant un point sur la turbine. La bobine de detection entoure coaxialement la turbine. Une bobine enroulee en opposition (81) est connectee electriquement en serie avec la bobine de detection tout en etant magnetiquement isolee de celle-ci. Une feuille de cuivre formee comme une spire en court circuit (77) est disposee entre la bobine de detection et la bobine enroulee en opposition pour compenser les changements de phase dans les tensions de decalage produites dans les bobines a cause de l'interference electromagnetique.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)