Grids

H - Electricity – 01 – J

Patent

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Details

H01J 25/02 (2006.01) H01J 1/46 (2006.01) H01J 3/02 (2006.01) H01J 23/02 (2006.01) H01J 23/065 (2006.01)

Patent

CA 2240301

A grid for use in a linear electron beam tube such as an IOT or TWT includes a grid section 3 and a mounting flange 4 between which is included an accommodation portion 5. During use, the grid section 3 becomes hot and consequently expands but the mounting flange 4 remains relatively cool being connected to a relatively massive structure. Thin flexible strips 8 of the accommodation portion 5 permit relative movement between the mounting flange 4 and the grid section 3 due to differential thermal expansion, thus minimising distortion to the grid section which might otherwise occur if it were connected directly to the mounting flange 4 and hence fixed in its outer diameter length.

Grille utilisée dans un tube à faisceau électronique linéaire comme un tube à sortie inductive (IOT) ou un tube à onde progressive (TWT) comprenant une grille (3) et une bride de montage (4) entre lesquelles se trouve une partie adaptée (5). Pendant l'utilisation, la grille (3) devient chaude et, par conséquent, prend de l'expansion, mais la bride de montage (4) reste relativement froide étant donné qu'elle est reliée à une structure relativement massive. Les minces bandes souples (8) de la partie adaptée (5) permettent un mouvement relatif entre la bride de montage (4) et la grille (3) en raison d'une dilatation thermique différentielle, ce qui réduit au minimum la déformation de la grille qui pourrait, autrement, se produire si elle éait directement reliée à la bride de montage (4) et, de là, à son périmètre extérieur.

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