Patent attributes
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.
