Method and device for determining the quality of seal of a...

G - Physics – 01 – M

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G01M 3/22 (2006.01)

Patent

CA 2680180

The invention relates to a method for determining the quality of seal of a test object (02), a test object (02) being initially arranged in a test chamber (03). The test object (02) is filled with a tracer gas at a pressure exceeding that of the test chamber (03). The gas volume in the test chamber (03) is then circulated through an external circuit (07, 08, 09), coupled to the test chamber (03), which includes a measuring chamber (11). The measurement of a quantitative parameter of the tracer gas is carried out with a sensor (14), arranged in the measuring chamber (11) for carrying out said measurement and is within the circulated gas flow. The invention further relates to a device (01) for determining the quality of seal of a test object (02), by means of which the above method can be carried out.

L'invention concerne un procédé de détermination de l'étanchéité d'un objet à contrôler (02). Selon ce procédé, un objet à contrôler (02) est tout d'abord placé dans une chambre de contrôle (03), puis l'objet à contrôler (02) est rempli d'un gaz traceur en surpression relativement à la chambre de contrôle (03). Le volume du gaz se trouvant dans la chambre de contrôle (03) est ensuite mis en circulation dans un circuit externe (07,08,09) raccordé à la chambre de contrôle (03), lequel circuit externe (07,08,09) comprend une chambre de mesure (11). La mesure d'une caractéristique quantitative du gaz traceur est réalisée au moyen d'un capteur (14) disposé dans le flux du volume de gaz en mouvement dans la chambre de mesure (11) pour réaliser la mesure. L'invention porte également sur un dispositif (01) de détermination de l'étanchéité d'un objet à contrôler (02), dispositif qui permet de réaliser ce procédé.

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