"Exxelia, le composant clé de l'électronique" dans le N°89 du Magazine des Grandes Ecoles & Universités
Positionné dans le domaine des composants passifs, le groupe Exxelia s'érige en composant actif de son secteur! Aviation civile, défense, spatial, médical, transports... "nous sommes partout mais on ne nous voit jamais" déclare son Vice-President Ventes et Marketing, Jérôme Tabourel (Polytech 2000, ...
Retrouvez une interview exclusive de notre Vice-Président Ventes et Marketing, Jérôme Tabourel dans le N°89 du Magazine des Grandes Ecoles et Universités -> https://www.mondedesgrandesecoles.fr/grandes-ecoles-universites-magazine-n89-fevrier-2020/
Nouvelle gamme de vis hyperfréquence autofreinées en Invar
Working frequencies in Space applications are shifting to Ka, Ku or even Q band, while cavity filters are undergoing the general trend towards miniaturization: this context calls for a much more precise and stable tuning element now offered by Exxelia Temex, daughter company of Exxelia, through their last innovative and unrivalled solution to incorporate a self-locking system into their Invar Tuning Elements. Invar-36 is a unique Iron-Nickel alloy (64 % Fe / 36 % Ni) sought-after for its very low coefficient of thermal expansion. With 1.1 ppm. K–1 between 0°C and 100°C, Invar-36 is about 17 times more stable than Brass which is the most traditional and common alloy Tuning Elements are made of. The working temperature range in Space is so wide that this property becomes essential for a reliable and stable cavity filter tuning. Self-locking system is a technology commonly used on Tuning Element made of Brass or other soft “easy-to-machine” alloys but is innovative and pretty advanced when applied to hard and tough Invar 36. The design consists of two threaded segments separated by two parallel slots. After cutting both parallel slots, the rotor is compressed in its length in order to create a plastic deformation. Thus, an offset is induced between the two threaded segments which generates a constant tensile stress in the rotor from the moment threaded segments are screwed.