Fluidic angle-of-attack sensor

Details Fluidic angle-of-attack sensor Fluidic angle-of-attack sensor

1975-12-04

1976-09-07

Woodiel, Donald O.

Measuring and testing

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Leeway incidence or side-slip

G01C 2100

Patent

active

039787249

ABSTRACT:
A fluidic angle-of-attack sensor for providing a differential output propional to the angle-of-attack of flow impinging on the sensor. An excitation flow nozzle discharges into a coanda-effect cavity which opens into a centrally oriented impingement cavity so that excitation flow penetrates and impinges on the ambient flow field. A pair of output ports alternately intercept part of the excitation stream to provide a differential output pressure. When the sensor is pointed across the flow field, the flow field augments the coanda effect in bending the stream one way while opposing it in bending it the other way to provide a differential output pressure proportional to angle-of-attack.

REFERENCES:
patent: 3327529 (1967-06-01), Bowles et al.
patent: 3434487 (1969-03-01), Baur
patent: 3452707 (1969-07-01), Warren

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