Experimental Stand UVJ Rez for Probability of Detection Assessment

Ladislav Pecinka presented the topic 'Experimental Stand UJV Rez for Probability of Detection (POD) Assessment'. He provided background on a methodology for quantifying the detection capability of a NDE technique. A POD demonstration test is typically conducted using a set of standard specimens of the same geometry and material that have a known number and distribution of indication sizes. An important consideration is that the size distribution should go beyond the NDE technique's detection capability to establish the POD. Dr. Pecinka also elaborated on a set of four specimens of dimension 2 m x 2 m x 1 m, UJV has constructed with known defects and internal components (rebar, tendon ducts). UJV has examined the specimens with ultrasound, ground penetration radar and impact echo NDE methods and identified which method is suitable and successful to detect the particular types of defects. Although not a complete spectrum of indication sizes, the set of specimens should be valuable for comparison testing by other organizations