where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

Sonotron NDT
Original developer and manufacturer of advanced ultrasonic instruments
992 views
Technical Discussions
Mahmoud M
Mahmoud M
05:06 Jul-15-2003
MFL and LFET

What the difference between MFL with permanent magnets and use low frequency electromagnetic technique


    
 
 Reply 
 
Dana H. Ives
Engineering
CoreStar International Corp., USA, Joined Jan 2003, 10

Dana H. Ives

Engineering
CoreStar International Corp.,
USA,
Joined Jan 2003
10
02:34 Jul-21-2003
Re: MFL and LFET
: What the difference between MFL with permanent magnets and use low frequency electromagnetic technique
.
In a nutshell: MFL uses permanent magnets with all the possible problems associated such as breakage, collection of debris, difficulty in smoothly transiting surfaces that are irregular, etc. LF Electromagnetic techniques require more sophisticated coil excitation circuitry with its associated filtration requirements due to LF noise, lower scan speeds to reduce missing anomolies, etc.


    
 
 Reply 
 

Product Spotlight

NEW! The PragmaPro Instrument Platform

The PragmaPro is based on a modular cartridge technology and supports various NDT instrument modal
...
ities such as UT, PAUT, ECT and many more. This new platform is based on a machined, powder-coated aluminum frame for shock-proofness, best sealing qualities and maximum heat dissipation. This is practical to extend the outdoor temperature range and/or to extend the power injected in the transducers. The PragmaPro is aiming at a very wide range of applications, such as weld scanning, corrosion mapping and composite testing.
>

NEW Wheel Type Phased Array Probe

DOPPLER NEW Wheel Type Phased Array Probe, more stable, new tyre makes lesser acoustic attenuation
...
, much lighter makes easier to handle, more slim size, magnetic and mechanical encoder optional etc...more
>

Immersion systems

ScanMaster ultrasonic immersion systems are designed for high throughput, multi shift operation in a
...
n industrial or lab environment. These fully integrated systems provide various scanning configurations and incorporate conventional and phased arrays technologies to support diverse applications, such as inspection of disks, bars, shafts, billets and plates. All of ScanMaster immersion systems are built from high accuracy scanning frames allowing for scanning of complex parts and include a multi-channel ultrasonic instrument with exceptional performance. The systems are approved by all major manufacturers for C-scan inspection of jet engine forged discs. Together with a comprehensive set of software modules these flexible series of systems provide the customer with the best price performance solutions.
>

YXLON Cougar EVO

Scalable small footprint X-ray inspection systems for assembly and laboratory applications. The
...
YXLON Cougar EVO series was designed to provide the "best-in- class" inspection solutions for SMT, semiconductor, and laboratory assembly applications, while maintaining a small system footprint for maximum convenience. With optimized software and hardware, these systems produce higher quality and more consistent results than other electronics inspection systems currently on the market.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window