IRIS INTERNAL ROTARY INSPECTION SYSTEM

IRIS is an ultrasound testing method used to check the pipeline and tube walls up to the diameter of 100 mm.

It is equivalent to ordinary ultrasound checking using a direct simple probe, not primarily designed to find and classify defects, such as the angle-probe testing of weld joints. The purpose here is to mainly check the pipe wall thickness from the erosion and corrosion point of view. The method allows to gain several types of displays of the measured data – the basic being unrolled inner surface of the pipe, or C-Scan. We can get the so-called B-Scan from it at any place, both cross-wise (i.e. cross section) or along the length.

The used medium here is water that serves to create immersion acoustic coupling between the probe and the tube wall, and to drive the rotary probe head at the same time. For this reason, the tube or its part must be under water. The system is equipped with rotation measuring device and encoder to establish longitudinal position. Thus, the position of measured point is exactly determined. Special software enables recording and analysis.