Abstract: The invention relates to a method for controlling a lightning protection system comprising a descent path. The method is characterized in that it comprises steps for: sending (E1) a radiofrequency signal to one end of the descent path, measuring (E2) a reflection coefficient, predetermining (E2) resonance frequencies of the descent path; and, comparing (E3) the predetermined resonance frequencies with preset resonance frequencies.

Abstract: A device for protecting from lightning (30) is intended to form at least a portion of an external surface of a structure to be protected and comprises a ground plane (32), a dielectric substrate (34) arranged on the ground plane, and an array of first metal elements (36) arranged on the dielectric substrate (34) and extending substantially parallel to the ground plane (32) in such a way that any pair of consecutive elements from said first metal elements (36) is separated by a distance comprised between 0.01 millimetres and 10 millimetres, said first metal elements being distributed in juxtaposed similar patterns, each of said patterns including first metal elements of different dimensions corresponding respectively to different electromagnetic resonant frequencies the juxtaposition of which defines an electromagnetic absorption band of the pattern.

Abstract: The invention relates to a method for controlling a lightning protection system comprising a descent path. The method is characterized in that it comprises steps for: sending (E1) a radiofrequency signal to one end of the descent path, measuring (E2) a reflection coefficient, predetermining (E2) resonance frequencies of the descent path; and, comparing (E3) the predetermined resonance frequencies with preset resonance frequencies.

Abstract: A device for protecting from lightning (30) is intended to form at least a portion of an external surface of a structure to be protected and comprises a ground plane (32), a dielectric substrate (34) arranged on the ground plane, and an array of first metal elements (36) arranged on the dielectric substrate (34) and extending substantially parallel to the ground plane (32) in such a way that any pair of consecutive elements from said first metal elements (36) is separated by a distance comprised between 0.01 millimetres and 10 millimetres, said first metal elements being distributed in juxtaposed similar patterns, each of said patterns including first metal elements of different dimensions corresponding respectively to different electromagnetic resonant frequencies the juxtaposition of which defines an electromagnetic absorption band of the pattern.

Abstract: A housing (1) for at least one electronic card (2), designed for the aeronautics field, of the type having a standardized width and including two lateral guides designed to work together with slides provided on the inner surfaces of an electronics bay, includes two half-shells, upper (4) and lower (5), pressed together at the lateral guides; the lower half-shell includes at least one bearing area (10) forming the housing for electronic cards; elements (19) for pressing each electronic card (2) in each corresponding housing and for pressing at least one heat sink (16) against the upper surface of at least one electronic card; the function of the body (5) is to take into account the mechanical stresses linked to the electronic cards hosted within the housing, and the function of the cover (4) is to ensure adequate thermal conductivity to allow heat produced by an electronic card in operation to be dissipated.

Abstract: A strip of a semi-finished product (101, 102), suitable for being deposited by lay-up, for the constitution of a laminated composite material, includes, according to a cross-section and over all its length: a first conductive layer (105, 106), made of an electric conductive material; two electric insulating layers (121, 122), made of a dielectric material completely surrounding the conductive layer (105, 106), the cross sectional width of which is greater than the width of the conductive layer; and two bonding layers (111, 112), extending in thickness on either side of the insulating layers (121, 122), on the exterior of the strip (101, 102). A method for the continuous production of such a strip is also described.

Abstract: A ridge structural part made of laminated composite material incorporates electrically conducting cables, the structural part includes at least two structural layers including fibers held in place by a thermosetting or thermoplastic matrix, at least one conducting network layer located between two of the at least two structural layer, the at least one conducting network layer including a network of electrically conducting cables, said electrically conducting cables being arranged throughout said structural part in a substantially regular manner and being electrically insulated from said two structural layers by a dielectric material. The structural part also includes electrical connections, to which electrically conducting cables of the at least one network layer are electrically connected so as to form an electrical network by assembling several structural parts.

Abstract: A housing (1) for at least one electronic card (2), designed for the aeronautics field, of the type having a standardized width and including two lateral guides designed to work together with slides provided on the inner surfaces of an electronics bay, includes two half-shells, upper (4) and lower (5), pressed together at the lateral guides; the lower half-shell includes at least one bearing area (10) forming the housing for electronic cards; elements (19) for pressing each electronic card (2) in each corresponding housing and for pressing at least one heat sink (16) against the upper surface of at least one electronic card; the function of the body (5) is to take into account the mechanical stresses linked to the electronic cards hosted within the housing, and the function of the cover (4) is to ensure adequate thermal conductivity to allow heat produced by an electronic card in operation to be dissipated.

Abstract: A rigid structural part made of laminated composite material incorporates electrically conducting cables, the structural part includes at least two structural layers including fibers held in place by a thermosetting or thermoplastic matrix, at least one conducting network layer located between two of the at least two structural layers, the at least one conducting network layer including a network of electrically conducting cables, said electrically conducting cables being arranged throughout said structural part in a substantially regular manner and being electrically insulated from said two structural layers by a dielectric material. The structural part also includes electrical connections, to which electrically conducting cables of the at least one network layer are electrically connected so as to form an electrical network by assembling several structural parts.