MEMS pressure sensors embedded into fiber composite airfoils

Author

Schwerter, Martin ; Leester-Schadel, Monika ; Buttgenbach, Stephanus ; Dietzel, Andreas ; Behr, Christian ; Sinapius, Michael ; Wierach, Peter

Author_Institution

Inst. of Microtechnol., Tech. Univ. Braunschweig, Braunschweig, Germany

fYear

2014

fDate

2-5 Nov. 2014

Firstpage

531

Lastpage

534

Abstract

The paper describes the integration of pressure sensors into fiber composite in order to obtain flow sensing airfoils to be used in future aircrafts. First, the sensor design and working principle is described, followed by an embedding procedure for damage-free integration. Here the sensors are faced to stresses by vacuum and curing during the embedding process into fiber-reinforced plastic. The mechanical characteristics and the influence of external mechanical stresses on the integrated sensor are further investigated. Finally, a sensor design unsusceptible to external mechanical stresses parallel to the surface of the airfoil is proposed and verified by tensile stress tests.

Keywords

aerospace components; aircraft; fibre reinforced plastics; intelligent sensors; microsensors; pressure sensors; stress analysis; tensile testing; MEMS pressure embedded sensor; aircraft; curing; damage-free integration; fiber composite airfoil; fiber-reinforced plastic; flow sensing; integrated sensor; mechanical stress; tensile stress testing; Mechanical sensors; Optical fiber sensors; Piezoresistive devices; Strain; Tensile stress; MEMS; embedding; fiber composite; influence of external stress; pressure sensor; tensile stress test;

fLanguage

English

Publisher

ieee

Conference_Titel

SENSORS, 2014 IEEE

Conference_Location

Valencia

Type

conf

DOI

10.1109/ICSENS.2014.6985052

Filename

6985052