Pressure measuring probe

Details Pressure measuring probe Pressure measuring probe

1988-01-13

1988-11-15

Woodiel, Donald O.

Measuring and testing

Wind tunnel: aerodynamic wing and propeller study

7386165, G01F 1465, G01M 900

Patent

active

047839945

ABSTRACT:
The invention is a probe (10) for measuring changes in pressure in a high locity fluid streams over and adjacent the surface of an object. The probe (10) is formed of an exterior housing (11) having a closed pressure chamber (28) in which a piezo-electric pressure transducer (32) is mounted. An open connector tube (26) having a probe tip (29) passes a portion of said fluid stream into the closed pressure chamber (28), any change of pressure therein requiring a "settling-time" to appear in the closed pressure chamber (28) that is inversely proportional to the cross-sectional area of the connector tube (26). A cooling chamber (47) formed around the pressure chamber (28) is connected to a source of cooling fluid by means of inlet and outlet tubes (44) and (46), respectively.

REFERENCES:
patent: 2706408 (1955-04-01), Holbrook
patent: 2986933 (1961-06-01), Summerlin et al.

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