Technical Diagnostics and NDT

"ITT Corp. reported on Nov. 19 that it delivered its first major composite structural sponson subassemblies for the CH-53K heavy-lift helicopter to Sikorsky Aircraft Corp.; Spirit AeroSystems has completed a mold/cure cycle for one the panels that make up the longest section of the Airbus A350 XWB’s all-carbon fiber fuselage" ITT Corp. (Salt Lake City, Utah) reported on Nov. 19 that it delivered its first major composite structural sponson subassemblies for the CH-53K heavy-lift helicopter to Sikorsky Aircraft Corp. (a subsidiary of United Technologies Corp., Stratford, Conn.). The delivery is the culmination of nearly three years of advanced design, development, testing and manufacturing activities, according to ITT. The CH-53K is the latest iteration of Sikorsky’s legacy helicopters, used by the U.S. Marine Corps since 1963. The K model, also known as Super Stallion, will offer significantly greater payload capacity than its predecessor and is currently the largest mariti...

Eddy current theory is based on electromagnetic induction. That means, a variable magnetic field can induce an electric current on a conductor which is separate to the source of the magnetic field, and also vice versa, which is an electric current generates a magnetic field. Similar theory is used for the magnetic particles inspection as well. Electromagnetic induction is used in many applications such as, Transformers, Electric motors, Generators, etc...   In the field of Non destructive testing (NDT), we manipulate with this theory which I mentioned above, and try to find surface defects or/and shallow internal defects of ferromagnetic materials.

Short research about the history of eddy current The first person to observe current eddies was François Arago (1786-1853), the 25 th president of France, Who was also a mathematician, physicist and astronomer.1824 He discovered what has been called rotatory magnetism, and the fact that most bodies could be magnetized; these discoveries were completed and explained by Michael Faraday (1791-1867). In 1834, Heinrich Lenz stated the principle that defines how the properties of the test objects are communicated back to the test system. Lenz's law states that the direction of current flow in the test object will be such that its magnetic field will oppose the magnetic field that caused the current flow in the test object. This means, in practice, the eddy currents communicate with the test coil by developing secondary flux that cancels a portion of the coil's flux equivalent to the magnitude and phase of the flux developed by the eddy currents.   Léon Foucault (1819-1868) However,...

Global leader in digital imaging to exhibit new offerings for NDT at ASNT conference, booth 725, in Houston   WALTHAM, Mass., Nov 15, 2010 (BUSINESS WIRE) -- PerkinElmer, Inc., a global leader focused on the health and safety of people and the environment, today announced it will launch two new Digital X-Ray Flat Panel Detectors (FPDs) for Non Destructive Testing (NDT) applications at the ASNT Fall Conference and Quality Testing Show in Houston, Texas, from November 15-17 at booth 725.

Computed Tomography (CT) has come a long way since its public inception in 1972. The rapid improvement of CT and the increasing capabilities of CT scans have definitely gone hand in hand. CT scans that used to take hours, now take seconds. This increase in capabilities has led to the use of CT scans more often and in more ways than ever before. The use of CT in the industrial nondestructive testing (NDT) field is one segment that has grown tremendously in the past few years. Industrial CT uses a series of 2D images taken at specific intervals around the entire sample. Any type of industrial CT system uses three principal components: an X-ray tube, an X-ray detector, and a rotational stage. Everything is enclosed in a radiation,

Olympus, a world leader in nondestructive testing technologies and pioneer in industrial phased array ultrasound, is pleased to introduce a comprehensive inspection solution for circumferential welds in pipes with a diameter as small as 21.3 mm OD. A key component of the solution is the COBRA, a new manual scanner specifically designed to

From my article "Technical diagnostics for a safer journey" for the journal Spectrum One of the most important properties of a transport system is safety. It’s said that the human factor is the main reason for many transport accidents, from aircraft to bicycle. That means there is more chance of an accident occurring because of a simple mistake of the operator (driver or a pilot), or because of the engineer who maintains or repairs the vehicle, or the other people who involved such as the air traffic controller or the policeman on roads. This article is focused on the engineering side, more precisely about identifying problems in mechanical part or a structure. What do engineers do to minimise the probability of having a failure?