PITOT-STATIC PROBE - CENTRAL AEROHYDRODYNAMIC INST

Title:

PITOT-STATIC PROBE

Document Type and Number:

WIPO Patent Application WO/1998/007014

Kind Code:

A1

Abstract:

The present invention relates to a pitot-static probe consisting of two coaxial bodies made in the shape of prisms, wherein the cross-sections of said prisms are in the form of equilateral triangles having their summits at an angle of 60�. Receptive openings are formed on the side edges of the prisms, wherein said openings are linked to connectors by pneumatic channels. This pitot-static probe is characterised by the fact that the side edges of the prisms are made convex with a radius of curvature R defined by the relation R/r > 1, wherein r is the radius of the circle passing through the apexes of the triangles at the prism cross-sections. The shape of this pitot-static probe minimises the effect of the Reynolds number when measuring pressures, while apparatus sensitivity is improved due to the increased derivative of pressures to be measured at the deflection angle. This system may be used to substantially reduce instrumental errors.

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Inventors:

VOZHDAEV EVGENY SEMENOVICH (RU)
GOLOVKIN VLADIMIR ALEXEEVICH (RU)
GOLOVKIN MIKHAIL ALEXEEVICH (RU)
EFREMOV ANDREI ALEXANDROVICH (RU)
MIKHEEV SERGEI VIKTOROVICH (RU)
VAKULENKO ANATOLY FILIPPOVICH (RU)
KASIYANIKOV VENIAMIN ALEXEEVIC (RU)
YAKEMENKO GRIGORY VASILIEVICH (RU)
SUDAREV EVGENY VASILIEVICH (RU)
PANKRATOV ANATOLY KUZMICH (RU)
KRAVTSOV VLADIMIR GEORGIEVICH (RU)
ALEXEEV NIKOLAI VASILIEVICH (RU)
NAZAROV OLEG IVANOVICH (RU)

Application Number:

PCT/RU1997/000252

Publication Date:

February 19, 1998

Filing Date:

August 08, 1997

Export Citation:

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Assignee:

CENTRAL AEROHYDRODYNAMIC INST (RU)
KAMOV COMPANY (RU)
AEROPRIBOR VOSKHOD JSCO (RU)
AVIAN COMPANY (RU)
VOZHDAEV EVGENY SEMENOVICH (RU)
GOLOVKIN VLADIMIR ALEXEEVICH (RU)
GOLOVKIN MIKHAIL ALEXEEVICH (RU)
EFREMOV ANDREI ALEXANDROVICH (RU)
MIKHEEV SERGEI VIKTOROVICH (RU)
VAKULENKO ANATOLY FILIPPOVICH (RU)
KASIYANIKOV VENIAMIN ALEXEEVIC (RU)
YAKEMENKO GRIGORY VASILIEVICH (RU)
SUDAREV EVGENY VASILIEVICH (RU)
PANKRATOV ANATOLY KUZMICH (RU)
KRAVTSOV VLADIMIR GEORGIEVICH (RU)
ALEXEEV NIKOLAI VASILIEVICH (RU)
NAZAROV OLEG IVANOVICH (RU)

International Classes:

G01L19/00; G01P5/165; G01P5/175; G01P13/02; (IPC1-7): G01L19/00; G01P5/16; G01P5/175

Foreign References:

SU623157A1	1978-09-05
SU1045130A1	1983-09-30
SU1543266A1	1990-02-15
SU1509744A1	1989-09-23
SU1679391A1	1991-09-23
EP0409178A2	1991-01-23
GB1298848A	1972-12-06

Other References: