What is NDT
Non-destructive testing (NDT) is a wide group of analysis techniques used in science and industry to evaluate the properties of a material, component or system without causing damage.The terms Nondestructive examination (NDE), Nondestructive inspection (NDI), and Nondestructive evaluation (NDE) are also commonly used to describe this technology.Because NDT does not permanently alter the article being inspected, it is a highly-valuable technique that can save both money and time in product evaluation, troubleshooting, and research. In short, to inspect or measure without doing harm.
Common NDT methods include ultrasonic, magnetic-particle, liquid penetrant, radiographic, remote visual inspection (RVI),and eddy-current testing. NDT is a commonly-used tool in forensic engineering, mechanical engineering, electrical engineering, civil engineering, systems engineering, aeronautical engineering, and medicine.
Eddy Current takes alternating electrical current to produce their own magnetic fields which can be measured and used to find flaws. This method detects surface and near-surface flaws in conductive materials,) permeability, and dimensional features. It is mainly applicable in oil and gas, mining, security, aviation, other industries.
Magnetic Particle Testing uses magnetic field to inspect ferromagnetic material. The magnetic lines then forced to travel through materials to detect surface and near surface defects; and is widely used for welds, pipelines, automotive industries, military, and other needs of crack detection.
Penetrant inspection is applied to detect cracks or porosity on the surface of the material. Penetrant fills the cracks then a developer is used to pull the penetrant and see the form of defect. The application is exerted on automotive, welds, casting, leak testing, pipeline, aircraft and vessels, power plant inspection, just to name a few.
Radiography uses X-rays and gamma rays to measure thickness and internal features; detect surface and subsurface defects; and provide details of material through film or other detector. This technology is widely used in oil and gas industries; security, and many other possible applications to gain an optimal quality of the operation.
A comprehensive selection of remote viewing equipment from basics to digital video boroscopes is available to help you inspect areas with hindrance. If you are restrained from a clear view due to inaccessible sites or locations, this technology will provide you with visual access to inspection in aviation, oil and gas, mining, automotive, and aviation, among others.
This method uses high frequency sound waves and energy to determine flaws, inspect material properties and any change in thickness. Ultrasonic locates surface and subsurface defects in materials like plastic, metal, woods, and others. Welding inspection is one of the industry that benefits this technology, aside from oil and gas, automotive, power plant, and other industries that require inspection.
Career Opportunities in NDT
NDT, Quality Control, and Quality Assurance are vital to the daily function of countless companies and civic-minded organizations. NDT Examinations are necessary to ensure safety and reliability for companies, personnel, products, and the public. Pipelines, bridges, motor vehicles, buildings, aircraft, water craft, power stations, trains, pipelines, oil platforms, and refineries are all inspected using NDT testing methods.
You will be qualified to start a career in a vast array of fields such as:
- Auto and Boat Racing
- Oil and Gas Development
- Amusements Parks
- Alternative Energy: Nuclear, Wind, Solar