Calibration for a nondestructive material testing system
AssigneeSiemens Aktiengesellschaft
InventorsStefan Hain, Hubert Mooshofer, Fabricio De Carvalho Ferreira
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Abstract
Calibration for an ultrasonic nondestructive materials testing system is specified, the system having an array of ultrasonic transducers which can be linearly moved and pivoted. In order to compensate for the offset between the beam direction of the ultrasonic transducers and the rotation point of the pivoting system or another desired point of the transducers, this offset is determined using a calibrating body which is, for example, spherical.
Claims20
A nondestructive materials testing device comprising at least one transducer, wherein
- the transducer is operable to be pivoted about a rotation point on at least one axis using a pivoting system,
- the transducer is operable to be linearly displaced in at least one direction using a linear movement system,
- And wherein the transducer is configured in such a manner that
- a calibration value which specifies an offset between a desired point, which is in a desired beam direction of the transducer, and the actual beam direction of the transducer is determined, and
- the calibration value is usable for compensating for the offset in such a manner that a beam emitted by the transducer runs through the desired point.
A nondestructive materials testing method in which use is made of a nondestructive materials testing device having at least one transducer for emitting a beam, the method comprising the steps of:
- moving the transducer over the surface of a workpiece to be tested using a pivoting system and a linear movement system,
- determining a calibration value which specifies an offset between a desired point, which is in a desired beam direction of the transducer, and determining the actual beam direction of the transducer, and
- using the calibration value to compensate for the offset in such a manner that a beam emitted by the transducer runs through the desired point.
Dependencies are inferred from the claim text.