MAR 07, 2018 6:00 AM PST

What is Non-Destructive Testing

WRITTEN BY: Daniel Duan

Non-Destructive Testing (NDT) include a wide range of analysis techniques that use electromagnetic radiation, sound wave, and other signals to assess the properties of a material, component or system without causing apparent physical damage.   

Take medical X-ray for example, it is a well known NDT method in medicine. In general, most procedures in radiology (such as MRI, ultrasound, CT, etc.) are known as non-invasive diagnostic methods, meaning that no puncture of the patient's body is required for the diagnostic purpose.

In different industries, NDT methods are routinely used where a failure of a component could have a catastrophic consequence, such as in fuel piping, transportation, building structures, and hoisting equipment.

In manufacturing, welds are commonly used to join two or more metal parts. Often due to many factors, a crack may appear in the joint and welders would need to use NDT techniques like industrial radiography, CT, and ultrasonic testing to check for cracks in the metal products.

Because of their short wavelengths and deep penetrating power, gamma ray and X-ray are among the most commonly used electromagnetic radiation in different NDT applications. 

Source: IAEA via Youtube
Featured image: portable X-ray generator. Credit: Wikipedia

About the Author
  • Graduated with a bachelor degree in Pharmaceutical Science and a master degree in neuropharmacology, Daniel is a radiopharmaceutical and radiobiology expert based in Ottawa, Canada. With years of experience in biomedical R&D, Daniel is very into writing. He is constantly fascinated by what's happening in the world of science. He hopes to capture the public's interest and promote scientific literacy with his trending news articles. The recurring topics in his Chemistry & Physics trending news section include alternative energy, material science, theoretical physics, medical imaging, and green chemistry.
You May Also Like
APR 16, 2020
Cannabis Sciences
APR 16, 2020
Nanoemulsion Speeds up THC Absorption in Edibles
Cannabis products infused with nanoemulsion boast many advantages over more traditionally manufactured edibles, and are ...
MAY 05, 2020
Space & Astronomy
MAY 05, 2020
How Much Do You Know About the Moon?
There are literally dozens upon dozens of natural satellites orbiting the planets in our solar system, but only one of t ...
MAY 06, 2020
Chemistry & Physics
MAY 06, 2020
Electronic nose could detect COPD
An electronic nose capable of identifying respiratory tract infections could come in great handy in times like these. At ...
MAY 19, 2020
Space & Astronomy
MAY 19, 2020
The Science Behind Eclipses
A particularly convenient coincidence exists between the relative sizes of the Sun and the Moon, and their distance from ...
JUN 02, 2020
Chemistry & Physics
JUN 02, 2020
This CO2 sensor was fabricated on a piece of paper
A carbon dioxide sensor developed by physicists at the University of Alberta can be manufactured on a mere piece of pape ...
JUN 23, 2020
Chemistry & Physics
JUN 23, 2020
What is "robotic soft matter"?
Research published yesterday in the journal Nature Materials describes the development of “robotic soft matter,&rd ...
Loading Comments...