G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/90 (2006.01) G01R 29/12 (2006.01)
Patent
CA 2561413
The inventive device (2) for controlling the health of a structure (1) which comprise a .sigma. conductivity imperfectly conductor material and an .epsilon. permittivity dielectric material and is provided with a magnetic radiation source (4) generating a dielectric field in the structure, a sensor (5) measuring two components of an electric field along two directions forming a nonzero angle therebetween and computing (3) means producing the values .sigma. and .epsilon. on the base the two components.
Dispositif (2) de contrôle de l'état de santé d'une structure (1) comprenant un matériau imparfaitement conducteur de conductivité .sigma. et un matériau diélectrique de permittivité .epsilon., comprenant une source de rayonnement magnétique (4), générant un champ diélectrique dans la structure un détecteur (5) mesurant deux composantes du champ électrique le long de deux directions formant un angle non nul entre elles, des moyens de calcul (3) donnant la valeur de .sigma. et de .epsilon. à partir des deux composantes.
Lemistre Michel Bernard
Placko Dominique Marc
Centre National de La Recherche Scientifique-Cnrs
Onera (office National D'etudes Et de Recherches Aerospatiales)
Robic
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