Rapid Detection of Cracks and Corrosion using Magnetic Stray Flux
FLUXI: handheld stray flux inspection device (prototype shown) Fraunhofer IZFP
With magnetic stray flux inspections, these flaws can be quickly visualized without destroying or contaminating the material.
As an alternative to magnetic powder tests, this method can also be used wherever the magnetic powder approach is unsuitable.
Engineers at Saarbrucken-based Fraunhofer IZFP will be introducing a mobile handheld device for magnetic stray flux testing at the 29th annual CONTROL trade fair in Stuttgart (hall 1, exhibit booth 1502), which runs May 5 to May 8.
Scientists at the Fraunhofer Institute for Nondestructive Testing IZFP in Saarbrucken have developed a handheld, wireless test device called FLUXI which is based on magnetic stray flux technology.
This method relies on the same physical effect exploited by magnetic powder testing, a standard and widely-used inspection process in steel manufacturing.
When an external magnetic field is applied to sharp-edged cracks on the surface of a component, additional magnetic dipoles form, which then induce magnetic leakage near the surface. This stray field can be detected and processed with magnetic field sensors.
The enormous potential for instrument technology miniaturization provides a key advantage since extremely difficult to access areas of the component can be quickly and easily subjected to magnetic stray flux inspections.
With FLUXI, manufactured parts and components can be rapidly scanned, allowing potential surface defects to be displayed as images.
Media Contact
All latest news from the category: Innovative Products
Newest articles
First-of-its-kind study uses remote sensing to monitor plastic debris in rivers and lakes
Remote sensing creates a cost-effective solution to monitoring plastic pollution. A first-of-its-kind study from researchers at the University of Minnesota Twin Cities shows how remote sensing can help monitor and…
Laser-based artificial neuron mimics nerve cell functions at lightning speed
With a processing speed a billion times faster than nature, chip-based laser neuron could help advance AI tasks such as pattern recognition and sequence prediction. Researchers have developed a laser-based…
Optimising the processing of plastic waste
Just one look in the yellow bin reveals a colourful jumble of different types of plastic. However, the purer and more uniform plastic waste is, the easier it is to…