NDT Standards: A Guide to the Organizations and Regulations Governing NDT
NDT, or non-destructive testing, refers to a variety of techniques used to evaluate the properties of a material, component, or system without…
NDT News
126 technical articles and industry updates
Method guides, certification routes, salary surveys, codes and standards explained, and news from the inspection industry.
955 discussions · 382 answers
Latest forum discussions
Phased ArrayPAUT Focusing problems (Near Field Length Compensation Options)ketkon · 1 reply · 5 days agoAbstractIn a previous report by the authors, the relative accuracy of Beamtool as it relates to calculations…Read discussion
Quality ControlWhat is the role of inspection in quality control?arsal · 1 reply · 5 days agoInspection involves measuring, examining and testing products, process and services against specified…Read discussion
Quality ControlBonding quality assessmentwilliam · 2 replies · 5 days agoDear sir, We are bonding steel and titanium alloys and assessing the bonding quality at the interface of the…Read discussion
Phased ArraySensitivity calibration in Phased Array UltrasonicsVisitor · 1 reply · 5 days agoHi,The manufacturer of the Phased Array equipment that I use indicates to calibrate the Sensitivity through…Read discussion- Hydrostatic TestingHelium Leak Test vs Hydrostatic Testwilliam · 2 replies · 5 days agoDoes anyone have experience or information on correlation of these tests? What will leak at hydro test vs…Read discussion
- Eddy CurrentWhat is the eddy current inspection method?arsal · 1 reply · 5 days agoEddy current testing is a non-destructive testing (NDT) inspection method used for a variety of purposes…Read discussion
193 calculations with worked examples
NDT calculators
FreeUTNear field length, circular probeNear-field (Fresnel zone) length N = D²f/4c for a circular single-crystal probe, with the wavelength it…Open calculator- FreeUTAngle beam sound path, surface distance and depthSolves the first-leg angle-beam triangle — sound path, surface distance and depth — from any one of the…Open calculator
- FreeTOFDToFD depth from time of flightConverts a measured ToFD arrival time into the depth of the diffracting tip below the scanning surface.Open calculator
- FreePAUTMaximum PAUT scan speedHighest encoded scan speed that still records every acquisition point, from the frame rate and the scan…Open calculator
- FreeRTSource decayCalculates the present activity of a gamma radiography source from its assay activity and the elapsed…Open calculator
- FreeMTCoil shot current, low fill factorAmpere-turns and coil current for longitudinal magnetisation in a low fill factor coil - part against…Open calculator