Method and system to verify the calibration of a system for non-destructive testing
AssigneeAirbus Operations GmbH
InventorFranck BENTOUHAMI
Life of this patent
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Abstract
A method and assembly for verification of the calibration of a system for non-destructive testing of pieces. The assembly includes an ultrasound probe, a perfect reflector having reference defects, and recording and data processing units. The ultrasound probe scans the perfect reflector and ultrasonic reflections from the reflector are measured by the non-destructive testing system, a recording unit records the measurements, and a data processing unit forms a virtual map of the perfect reflector based on the amplitude and time of flight of the reflections and based on predetermined characteristics of the material of the reflector.
Claims11
A method of verification of the calibration of a system for non-destructive testing of at least one piece, said system for non-destructive testing comprises at least one ultrasound probe, and the method includes successive steps E1 to E3 which comprise:
- E1—in carrying out measurements, by means of the non-destructive testing system, on at least one perfect reflector including at least one reference defect, recording the measurements, and creating and analyzing an ultrasound mapping of an entry surface of the perfect reflector;
- E2—in determining a virtual probe, based on physical data of the ultrasound probe, associating the virtual probe with a bandwidth representative of measurements carried out at the step E1;
- and
- E3—modeling a virtual gauge block and creating a virtual mapping in amplitude and in time of flight of a bottom surface of the virtual gauge block, using as input data characteristics of the piece, the virtual probe and measurements carried out in the step E1, and
- analyzing said virtual mapping to deduce characteristics of the calibration of said non-destructive testing system.
An assembly for verification of a calibration of a non-destructive testing system comprising:
- at least one perfect reflector comprising at least one reference defect, and on which measurements are to be performed by means of the non-destructive testing system;
- a recording unit configured for recording the measurements carried out on said perfect reflector;
- and
- a data processing unit configured for determining at least one virtual mapping in amplitude and in time of flight by modeling, based on values measured and received from said recording unit.
A method of verification of a calibration of a system for non-destructive testing of at least one piece, wherein the system for non-destructive testing includes at least one ultrasound probe, and the method comprises:
- E1—measuring, using the non-destructive testing system, at least one perfect reflector including at least one reference defect, recording the measurements of the perfect reflector, and creating and analyzing an ultrasound map of an entry surface of the perfect reflector;
- E2—determining a virtual probe, based on physical data of the ultrasound probe, and associating the virtual probe with a bandwidth representative of the measuring in step E1, and
- E3—modeling a virtual gauge block and creating a virtual mapping of amplitude and time of flight with respect to a bottom surface of the virtual gauge block, using as inputs data characteristics of the at least one piece, and using the virtual probe and using the measurements taken the step E1, and analyzing said virtual mapping to determine at least one characteristic of the calibration of said non-destructive testing system.
Dependencies are inferred from the claim text.