Measuring and testing – Fluid flow direction – Relative to aircraft or watercraft
Reexamination Certificate
2006-10-03
2006-10-03
Thompson, Jewel (Department: 2855)
Measuring and testing
Fluid flow direction
Relative to aircraft or watercraft
Reexamination Certificate
active
07114387
ABSTRACT:
A measuring segment is integrally formed in a wing model. A plurality of thin membranes are formed on a surface of the measuring segment at predetermined intervals in a cord direction with a distortion gauge fixed to a back face of each of the plurality of thin membranes to output an electric signal upon distortion. The electric signals are converted by a pressure conversion means into pressures, thereby measuring a pressure distribution in an airflow direction. It is possible to prevent the generation of a step or a gap which affects an airflow along the surface of the measuring segment, thereby improving accuracy. The measuring segment is integrally molded by an optical molding method to form a complicated shape with a high accuracy and a low cost. Further, a plurality of the measuring segments may be disposed at intervals in a span direction for measuring pressure distributions.
REFERENCES:
patent: 5483839 (1996-01-01), Meunier
patent: 5762539 (1998-06-01), Nakashiba et al.
patent: 6928884 (2005-08-01), Pearson
patent: 2005/0011447 (2005-01-01), Fink
patent: 2006/0075831 (2006-04-01), Okuda
patent: 2002-206987 (2002-07-01), None
patent: 2003-500640 (2003-01-01), None
Birch, Stewart, Kolasch and Birch LLP
Thompson Jewel
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