MPI meaning in Physics Related ?

Answer:

What is Magnetic Particle Inspection mean?

Magnetic particle Inspection (MPI) is a nondestructive testing (NDT) process for detecting surface and shallow subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt, and some of their alloys. The process puts a magnetic field into the part. The piece can be magnetized by direct or indirect magnetization. Direct magnetization occurs when the electric current is passed through the test object and a magnetic field is formed in the material. Indirect magnetization occurs when no electric current is passed through the test object, but a magnetic field is applied from an outside source. The magnetic lines of force are perpendicular to the direction of the electric current, which may be either alternating current (AC) or some form of direct current (DC) (rectified AC).

The presence of a surface or subsurface discontinuity in the material allows the magnetic flux to leak, since air cannot support as much magnetic field per unit volume as metals.

To identify a leak, ferrous particles, either dry or in a wet suspension, are applied to a part. These are attracted to an area of flux leakage and form what is known as an indication, which is evaluated to determine its nature, cause, and course of action, if any.

reference

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Max-Planck Institute for Meteorology	Academic & Science
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Mamitupo	Airport Code
Macro-Prudential Indicators	Banking
Master Planners International	Business
Meeting Professionals International	Business
Martinross Pianos Inc.	Business
Multi-Point Injection	Business
Medium Pressure Inverted	Business
Meeting Planner International	Business
Master Painters Institute	Business
Manitoba Public Insurance	Business
Michael Page	Business
Male Parental Investment	Community
Minimum Picture Interval	Computer and Networking
Multiple Protocol Interface	Computing
Multi Precision Integer	Computing
Multiply Integer	Computing
Microsoft Press Inc.	Computing
Multi Port Injection	Computing
Message Parsing Interpreter	General
Mental Processing Index	General
Minimum Power Intake	General
Multi Point Inspection	General
Monopoint Injection	General
Motor Presse International	General
Multidimensional Poverty Index	General
Meeting Planners International	General
Max Papis Innovations	General
Market Penetration Index	General
Max Planck Institut	General
Motion Picture Industry	General
Multi Purpose Inkjet	General
Maintenance Performing Index	General
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Martin Prosperity Institute	Governmental
Migration Policy Institute	Governmental
Max Planck Institute	Governmental
Medical Professional Institute	Governmental
Master Planning Instructions	Governmental
Modified Policy Iteration	Governmental
Ministero Pubblica Istruzione	Governmental
Ministry of Planning and Investment	Governmental
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Markov Processes International	International
Maxx Products International	International
Millî Piyango Idaresi genel müdüriügü	International
Modified Prime Implicants	Maths
Maximum Percent Improvement	Maths
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Myocardial Perfusion Imaging	Medical
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Maximum Point of Impulse	Medical
Mean Pixel Intensity	Medical
Medicare Provider Inventory	Medical
Megakaryocyte Proliferation Index	Medical
Mucus Protease Inhibitor	Medical
Multidimensional Pain Inventory	Medical
Multiphasic Personality Inventory	Medical
Multiprofessional Institute	Medical
Multivariate Prognostic Index	Medical
Myocardial Performance Index	Medical
Merchant Plug-in	Messaging
Mean Point of Impact	Military and Defence
Multi-point-interface	Networking
Message Passing Interface	Networking
Magnetic Particle Inspection	Physics Related
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Matlab Parallel Interface	Softwares
Multiple Process Interface	Softwares
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Marginal Propensity To Invest	Stock Exchange
Massive Passive Income	Stock Exchange