Ray tracing tool and pencil method

In CIVA, unlike in other NDT simulation softwares, the ray tracing is only used to help displaying the results, while the computation relies on the pencil method.

In CIVA UT results, the rays are displayed from the center of the probe to the specimen, according to the local properties at interfaces. For a better understanding of the propagation, it is possible to display a beam of rays.

 

 

These tools help to visualize the path of the ultrasonic beam. They are used for the reconstruction of the true scans only.

CIVA models are based on the pencil method, in which matrices take into account the propagation in each medium and at each interface from a source point.

 

 

The field radiated by the total aperture of the probe is obtained by a sum of the fields on the different source points constituting the probe. This method is therefore able to compute the time of flight, the polarization and the divergence of the beam.