Nondestructive testing system and method using reflected shear horizontal guided waves
AssigneeEcole De Technologie Superieure
InventorsPierre Belanger, André Dionne, Aurélien Thon
Life of this patent
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Abstract
A method and a system for nondestructive testing of a structure are provided. At least one ultrasonic probe is driven to cause at least one shear horizontal (SH) guided wave to propagate in the structure. At least one reflected guided wave signal is received from the structure to the at least one ultrasonic probe being driven. A comparison between an amplitude of the at least one reflected guided wave signal and an amplitude threshold is performed. A thickness of the structure is determined based on the comparison and a presence or an absence of at least one defect in the structure is detected based on the thickness as determined.
Claims20
A method for nondestructive testing of a structure, the method comprising:
- driving at least one ultrasonic probe to cause at least one shear horizontal (SH) guided wave to propagate in the structure;
- receiving at least one reflected guided wave signal from the structure in response to driving the at least one ultrasonic probe;
- performing a comparison between an amplitude of the at least one reflected guided wave signal and an amplitude threshold;
- and
- determining a thickness of the structure based on the comparison and detecting, based on the thickness as determined, a presence or an absence of at least one defect in the structure.
A system for nondestructive testing of a structure, the system comprising:
- an ultrasonic probe configured to be coupled to the structure and to cause, when driven, at least one shear horizontal (SH) guided wave to propagate in the structure;
- a processing unit;
- and
- a non-transitory computer-readable medium having stored thereon instructions executable by the processing unit for:
- driving the at least one ultrasonic probe;
- receiving at least one reflected guided wave signal from the structure in response to driving the at least one ultrasonic probe;
- performing a comparison between an amplitude of the at least one reflected guided wave signal and an amplitude threshold;
- and
- determining a thickness of the structure based on the comparison and detecting, based on the thickness as determined, a presence or an absence of at least one defect in the structure.
Dependencies are inferred from the claim text.