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 -
1024 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

EKOSCAN Phased Array

In order to always fit your needs, EKOSCAN can manufacture any type of UT transducer, either convent
...
ional or Phased Array. As an ISO 9001: 2015 certified company, EKOSCAN is extremely careful as far a material selection and manufacturing processes are concerned. Our probes guarantee our customers the benefits of latest innovations regarding piezo-composite, backing, impedance adaptation layer, etc. Specific probes for hostile environment: high temperature, high pressure, corrosive environment,etc. Specific probes designed to fit your specific application: optimization of every parameter to guarantee you the best detection.
>

GUL QSR1® Scanning

How do you measure pipe wall thickness without direct access to the area? QSR® Scanning - Guide Wav
...
e Quantitative Short Range Scanning.
>

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

Ultrasonic Squirter/Gantry System

TecScan’s NDT Ultrasonic Gantry Systems are industrial Squirter scanners designed for non-destru
...
ctive quality testing and raster scanning of large structures and parts. The Gantry Systems are usually composed of an Industrial Mechanical Scanner and a Control Room with System Workstation.
>

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