Fluid flow rate measuring apparatus

Details Fluid flow rate measuring apparatus Fluid flow rate measuring apparatus

G - Physics

01

F

G01F 1/34 (2006.01) G01F 1/20 (2006.01) G01F 1/28 (2006.01)

Patent

CA 2085805

ABSTRACT OF THE DISCLOSURE A liquid flow measuring device has a deflector (31, 69) slidably mounted relative to a cylindric inlet of the liquid to be measured, for a minute displacement along the axis of the inlet conduit. The deflector is exposed to the static pressure created by the fluid. It has a concavely shaped deflection face shaped to reverse the flow of the incoming liquid. The flowing liquid creates a dynamic force vector at the deflector in the direction of the axis thereof. The dynamic force at which the deflector is urged by, and in the direction of, the incoming flow is sensed by an electric pressure cell (42, 81) whose electrical output is then directed to a suitable indicator (47) or controlapparatus. The device presents a simple arrangement. Yet, it is sensible to even minor variations in the rate of flow of the liquid due to the fact that virtually the entire flow participates in the generating of the pressure active at deflector and thus at the cell (42, 81).

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