Novel measurement method for air-data system based on strip sensors: experimental results

We report the first experiments performed in a wind tunnel to validate a novel measurement equipment, meant to be used in the air-data system of small aircrafts. The apparatus does not rely on conventional probes, but takes advantage of capacitive, strip pressure sensors that enable a survey of the...

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Bibliographic Details
Main Authors: Callegari, S., Zagnoni, M., Golfarelli, A., Tartagni, M.
Format: Conference Proceeding
Language:English
Subjects:
Aircraft
Automotive components
Capacitive sensors
Performance evaluation
Printed circuits
Probes
Sensor systems
Skin
Strips
Velocity measurement
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Summary:We report the first experiments performed in a wind tunnel to validate a novel measurement equipment, meant to be used in the air-data system of small aircrafts. The apparatus does not rely on conventional probes, but takes advantage of capacitive, strip pressure sensors that enable a survey of the pressure gradients on portions of the aircraft surfaces. Sensors are built by printed circuit board (PCB) technologies as conformable film-like structures that can be directly applied on the aircraft skin. They can read gradients thanks to the many elementary units present in each strip. The measurement equipment employs pressure-gradient information to indirectly infer the aircraft air speed and angle of attack. In the experiments, measurements are taken in a wind tunnel using a NACAOO15 model airfoil hosting a single sensor and results confirm the ability of the system to correctly detect the target quantities
ISSN:1930-0395
2168-9229
DOI:10.1109/ICSENS.2005.1597960