Noise reducing differential pressure measurement probe

Details Noise reducing differential pressure measurement probe Noise reducing differential pressure measurement probe

G - Physics

01

F

G01F 1/46 (2006.01)

Patent

CA 2346522

A differential pressure measuring probe with an improved signal to noise ratio is provided. The probe includes an impact surface with at least one longitudinally extending slit aperture communicating with a first plenum within the body of the probe. The width of the aperture is selected to be less than the width of the interior portion of a first plenum. A non-impact surface is provided with non-impact apertures to measure a second pressure such that differential pressure between the impact surface and the non-impact surface can be measured.

L'invention porte sur une sonde de mesure de pression différentielle dont le rapport signal/bruit a été amélioré. Cette sonde comporte une surface (46) d'impact pourvue au moins d'un orifice (48) d'impact s'étendant longitudinalement. La largeur de l'orifice est définie de façon à être inférieure à celle d'une partie interne d'une première chambre (42). Une surface (50) sans impact est pourvue d'orifices (52) permettant de mesurer une seconde pression de façon à pouvoir mesurer la pression différentielle entre la surface (46) d'impact et la surface (50) sans impact.

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