A sensor finger module for a pipeline inspection tool

G - Physics – 01 – N

Patent

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Details

G01N 17/04 (2006.01)

Patent

CA 2572267

An inspection sensor module for an in-line pipe inspection tool has a support for mounting the module on the tool, a finger pivotally attached at one end to the support and pivotally attached at the other end to a sensor block carrying one or more inspection sensors. A first leaf spring extends from the support to the finger to bias the finger outwardly, and a second leaf spring extends from the support to the carrier to bias the sensor block. Biasing sensors are mounted on the leading and trailing edges of the first leaf spring to detect movement of the first leaf spring corresponding to movement of the inspection sensors towards or away from the support.

L'invention porte sur un module de capteurs de contrôle (100) d'un outil de contrôle (110) de pipeline qui possède un support (170) pour monter le module (100) sur l'outil (110), une tige (150) fixée pivotante à une extrémité (150) du support (170) et fixée pivotante à l'autre extrémité (158) d'un bloc de capteurs (190) supportant un ou plusieurs capteurs de contrôle. Un premier ressort à lames (180) s'étend du support (170) à la tige (150) afin de solliciter la tige (150) vers l'extérieur, et un second ressort à lames (182) s'étend du support au transporteur afin de solliciter le bloc de capteurs (190). Des capteurs de sollicitation (142,144) sont montés sur les bords avant et arrière du premier ressort à lames (15) afin de détecter le mouvement du premier ressort à lames (180) correspondant au déplacement des capteurs de contrôle vers le support (170) ou en direction opposée à ce support.

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