US 12,405,250 B2
Method for monitoring the change over time of a defect in a structure
Hugo Cence, Saint Remy (FR); Valentin Perret, Saint Remy (FR); Olivier Bardoux, Les Loges-en Josas (FR); Daniel Gary, Les Loges-en Josas (FR); and Sophie Wastiaux, Champigny-sur-Marne (FR)
Assigned to L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE, Paris (FR); and EKOSCAN, Saint Remy (FR)
Appl. No. 17/792,313
Filed by L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE, Paris (FR); and EKOSCAN, Saint Remy (FR)
PCT Filed Dec. 24, 2020, PCT No. PCT/EP2020/087864
§ 371(c)(1), (2) Date Jul. 12, 2022,
PCT Pub. No. WO2021/144134, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 2000483 (FR), filed on Jan. 17, 2020.
Prior Publication US 2023/0059369 A1, Feb. 23, 2023
Int. Cl. G01N 29/06 (2006.01); G01N 29/04 (2006.01); G01N 29/07 (2006.01); G01N 29/28 (2006.01)
CPC G01N 29/06 (2013.01) [G01N 29/041 (2013.01); G01N 29/043 (2013.01); G01N 29/07 (2013.01); G01N 29/28 (2013.01); G01N 2291/0289 (2013.01); G01N 2291/263 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for monitoring a portion of a structure implementing a control station configured to control at least one ultrasonic non-destructive testing device through a remote network, each ultrasonic non-destructive testing device comprising a multi-element ultrasonic sensor disposed on a surface of the portion of the structure, the structure being an adsorber and the portion being a wall of the adsorber, the method comprising, for each ultrasonic non-destructive testing device, the following steps of:
A) sending by the control station a first measurement request to the non-destructive testing device, at a beginning of a filling phase of the adsorber;
B) receiving by the control station a first plurality of measurement data from the non-destructive testing device, the first plurality of measurement data being measured by the multi-element ultrasonic sensor of the ultrasonic non-destructive testing device;
C) constructing by the control station a first mapping of the portion of the structure from the first plurality of measurement data;
D) subsequently to sending the first measurement request, sending by the control station a second measurement request to the non-destructive testing device, at an end of the filling phase of the adsorber;
E) receiving by the control station a second plurality of measurement data from the non-destructive testing device, the second plurality of measurement data being measured by the multi-element ultrasonic sensor of the ultrasonic non-destructive testing device;
F) constructing by the control station a second mapping of the portion of the structure, from the second plurality of measurement data; and
G) comparing by the control station the first mapping and the second mapping.