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Posted By admin   2017-12-04 11:37:33   

Mu Metal Shielding Redirects Radiations

Emitted by all kinds of electronic devices, electromagnetic waves exist everywhere. But don’t worry, magnetic shielding helps to protect against these harmful radiations. Unlike our popular belief, magnetic shields actually can’t reduce or block magnetic fields, it works by redirecting the propagation of magnetic field lines so that magnetic flux flows through the walls of the shield itself, resul...

Posted By admin   2017-10-18 18:11:50   

Calculation of Shielding

Much about Mu Metal magnetic shielding was discussed previously, then what is field attenuation? It’s also called shielding factor (S), which is a ratio between the magnetic field strength outside of the magnetic shield (Ha) and the resultant field on the inside of the shield i.e. Ha/Hi (no units) or S = 20 × log(Ha/Hi) (Db). There are many different calculation formulae according to the permeabil...

Posted By admin   2017-09-07 11:47:15   

The Way a Magnetic Shield Works

Many people know that magnetic shields provide protection by stopping or negating unwanted interference from magnetic fields. But most people have no idea how the shield actually works. There are different ways and materials used in magnetic shielding depending on the frequencies and strengths of the magnetic fields. With the purpose of explaining for this instance, we will use passive low frequen...

Posted By admin   2017-08-07 18:20:19   

Applications of Mu Metal shields

You may haven’t noticed but you’d be surprised if you realize how many items you’re using daily or you may encounter in your lifetime which have Mu Metal magnetic shields applied within them. As nowadays we’re living in a society that largely dependent on technology and electronic devices, it’s more and more important to shield the electromagnetic interference emitting from those various kinds of ...

Posted By admin   2017-07-10 14:13:32   

Shielding Applications of Three Nickel-Iron Alloys

Mu Metal is one of a family of three nickel iron alloys widely used to produce magnetic parts and shielding. The three alloys concerned have the following approximate compositions and well known trade names: 36%NiFe widely known as Supra 36, Nilomag36, Radiometal 36, Magnifer 36 50%NiFe widely known as Supra 50, Nilomag 50, Radiometal 50, Magnifer 50 80%NiFe 5%Mo widely known as Mu Metal, Magnifer...

Posted By admin   2017-07-05 10:52:49   

What is the Best Shield Shape

      The most efficient magnetic shield shape is a spherical shield but this is difficult to manufacture in production terms. The next best is a cylinder with closed ends. The rounded surface of the cylinder is conductive to the absorption of magnetic flux. If the cylinder does not have end caps, the ratio of the length to the diameter should be 4:1.    &nb...

Posted By admin   2017-10-23 11:05:47   

Annealing of Mu Metal – Vacuum or Hydrogen?

Is it better to anneal Mu Metal in a vacuum or hydrogen furnace? This is a question we are often asked… Pure Hydrogen heat treatment will always give better results as it is a true chemically reducing atmosphere and even removes impurities that are below the surface of the material, allowing the grain structure and therefore the magnetic domains to maximize. All Mu Metal manufacturers will recomme...

Posted By admin   2017-03-22 16:49:23   

What is the Sound Difference between Mu Metal and Amorphous Core Transformers?

Many customers are wondering the sound difference between Mu Metal lamination transformers and tape wound amorphous core transformers. We have forwarded the question to the engineers and below answers were got after comparative experiments: We found sonic consistency between the transformers using the same core material and differences between transformers of the same application type with differe...

Posted By admin   2017-10-23 10:52:08   

Facts about Nickel

Nickel is a hard, silvery-white metal whose strength, ductility and resistance to heat and corrosion make it extremely useful for the development of a wide variety of materials - from wires to coins to military equipment. This extremely useful metal is No. 28 in the periodic table of the elements, between the elements cobalt and copper. It is a fairly good conductor of electricity and heat and is ...

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