Basics 3 min read
Measuring Magnetic Fields
When performing a magnetic particle inspection, it is very important to be able to determine the direction and intensity of…
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Basics 2 min read
Quantifying Magnetic Properties
(Magnetic Field Strength, Flux Density, Total Flux and Magnetization) Until now, only the qualitative features of the magnetic field have been…
Basics 4 min read
Sensitivity in Magnetic Particle testing
It is common to see the term ‘crack-free’ used in product specifications and although the concept may be simple to…
Basics 3 min read
MAGNETIC PARTICLE INSPECTION
MAGNETIZES TO FIND DISCONTINUITIES Magnetic particle inspection successfully detects surface and near surface defects in ferromagnetic materials such as steel…
Basics 3 min read
Magnetic Field Characteristics
Magnetic Field In and Around a Bar Magnet As discussed previously, a magnetic field is a change in energy within…
Basics 2 min read
Magnetic Domains
Ferromagnetic materials get their magnetic properties not only because their atoms carry a magnetic moment but also because the material…
Basics 3 min read
Diamagnetic, Paramagnetic, and Ferromagnetic Materials
When a material is placed within a magnetic field, the magnetic forces of the material’s electrons will be affected. This…
Basics 3 min read
Magnetization of Ferromagnetic Materials
There are a variety of methods that can be used to establish a magnetic field in a component for evaluation…
Basics 3 min read
Principle of Magnetic Particle Testing
Principle of MPT This testing method is called MT (Magnetic Testing) or MPT (Magnetic Particle Testing), and suitable for the…
Basics 5 min read
Non-destructive Testing: Important Terminology
There are many different non-destructive testing techniques recognized by the American Society for Non-destructive Testing (ASNT) including Acoustic Emission Testing…
