US 12,146,813 B2
Method for checking the tightness of a double-walled motor vehicle panel via ultrasound sensing
François Virelizier, Sainte-Julie (FR); Jérôme Brizin, Sainte-Julie (FR); Eric Stumpp, Sainte-Julie (FR); David Tresse, Sainte-Julie (FR); and Julien Guyot, Sainte-Julie (FR)
Assigned to COMPAGNIE PLASTIC OMNIUM SE, Lyons (FR)
Appl. No. 17/754,543
Filed by COMPAGNIE PLASTIC OMNIUM SE, Lyons (FR)
PCT Filed Oct. 7, 2020, PCT No. PCT/EP2020/078134
§ 371(c)(1), (2) Date Apr. 6, 2022,
PCT Pub. No. WO2021/069500, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 1911107 (FR), filed on Oct. 7, 2019; and application No. 1914789 (FR), filed on Dec. 18, 2019.
Prior Publication US 2023/0114942 A1, Apr. 13, 2023
Int. Cl. G01M 3/24 (2006.01)
CPC G01M 3/24 (2013.01) 16 Claims
OG exemplary drawing
 
1. A method for checking an integrity of a glue joint comprising:
arranging at least one ultrasound sensing device in an inner volume defined between one portion of a body box and a body skin;
emitting a pressurized directional air jet on an opposite side of a predetermined area of a glue joint connecting said portion of the body box and said body skin, wherein the opposite side of the predetermined area of the glue joint is not in the inner volume;
recording a noise level detected by the at least one ultrasound sensing device in the inner volume; and
determining an integrity defect in the glue joint according to the recorded noise level.