Device for measuring and nondestructive inspection of the...

F - Mech Eng,Light,Heat,Weapons – 17 – D

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F17D 5/00 (2006.01) F16L 55/26 (2006.01)

Patent

CA 2339679

The present invention relates to a device intended for measuring and for checking without causing any damage the material of a duct (1). This device includes a cylindrical support (3) for sensors (20) which is made of a resilient material and which has an outer diameter slightly larger than the inner diameter of the duct (1). The support (3) is made in the form of a series of holders (15) which are connected to each other on a common flange (16) and which are spring-loaded in a radial direction. Each holder comprises a longitudinal recess (22) in which sensors (20) are arranged. The recess (22) and the wall of the duct (1) define together a channel which is opened at the rear portion of the holder (15). The front wall (24) of the recess (22) has an L-shaped cross section, while the side walls (25) are provided on their periphery with plates (26) made of a resilient material and slightly extending beyond the peripheral sections of said side walls (25). The thickness of the side walls is larger than the thickness of the front wall (24) and of the side plates (26). This devices further includes at least one sealed body (2) which is hinged to the support (3) and bears information processing means connected to the sensors (20), as well as a power supply unit.

Cette invention concerne un dispositif permettant de mesurer et contrôler sans causer de dommages le matériau dont est fait un conduit (1). Ce dispositif comprend un support cylindrique (3) pour capteurs (20) qui est fait d'un matériau élastique et dont le diamètre externe est un peu plus grand que le diamètre interne du conduit (1). Le support (3) consiste en une série d'éléments de maintien (15) qui sont connectés entre eux sur un flanc commun (16) et qui sont poussés par ressort dans une direction radiale. Chaque élément de maintien comprend un évidement longitudinal (22) dans lequel sont disposés des capteurs (20). L'évidement (22) et la paroi du conduit (1) forment un canal qui ouvert du côté de la partie arrière de l'élément de maintien (15). La paroi avant (24) de l'évidement (22) possède une section transversale en forme de L, tandis que les parois latérales (25) comportent sur leur périphérie des plaques (26) qui sont faites d'un matériau élastique et qui dépassent légèrement au-delà des sections périphériques desdites parois latérales (25). L'épaisseur des parois latérales est supérieure à l'épaisseur de la paroi avant (24) et des plaques latérales (26). Ce dispositif comprend également au moins un corps hermétique (2) qui est connecté au support (3) par une articulation et qui supporte des systèmes de traitement d'informations reliés aux capteurs (20) et, enfin, une unité d'alimentation électrique.

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