Why Do We Need Electric and Magnetic Shielding? And Areas Where We Need It.

Magnetic Shielding is used for a lot of reasons. Its chief purpose is protection. It is used in laboratories and other electronics for the protection of samples and magnetometers used there. In this way, it enhances the working capacity and capability of magnetometers. This is the use of a magnetic shield in the field of research. The size and length of the magnetic shield depend on the particular field where it is being used. For instance, in 10cm to 15m shield is required for the research laboratory.

Have you ever thought about how it guards the magnetic field? Ironically it’s like adding another protective field surrounding the previous one. It is parallel to gravitational forces and antiphase headphones abolish any kind of noise. This new shield is a protective covering of the previous field and is opposite each other. In this way, it protects the existing shield from removal. If we talk about the other diagnostic fields, the purposes are a little bit different. Then comes electromagnetic shielding which protects one electrical component from the other. If more than one electronic is used in a single device, an electromagnetic shield is going to work as a barrier between them preventing electromagnetic interference. 

Use of Magnetic shielding in MRI installations.

MRI installation is a very complicated procedure where the magnet is installed and then shimmed. Magnetic shielding is crucial for this process as it prevents any kind of disturbance or interference in the field. Not only for the safety of the field, but it also protects the MRI scanner and other devices and types of equipment surrounding it too.

First of all, let’s find out what a magnetic field actually is. It includes electromagnets, electric distribution, MRI scanners, and electric motors. Everything included here works for some purpose, but before operating the field, there should be something to control and limit it. For this reason, here we have magnetic shielding. Europian EMC will install the magnetic shield.

Following are the uses of magnetic shielding in MRI installations.

•The first and foremost thing is that the MRI scanner itself will not be affected by any other nearby object or equipment. It may include vehicles and inflexible material.

• As we have more than one medical equipment in a single device, magnetic shielding will protect them from getting affected by each other.

• In addition to this, it protects us from the magnetic field’s impact surrounding us. It guarantees a safer environment for us.

Designing The Magnetic Shielding.

It is not quite easy to install the shield randomly. Designing the shield for a magnetic field needs a pre-procedure. It includes finding out the plot of magnetic lines to look for the exact location of the magnetic strength. In this way, we will find out the location and shape of the magnetic field to design a perfect magnetic shield. After this, a magnetic shield is installed. It requires the worker to be efficient and experienced. Because the perfection of the shielding depends on the team too. They provide the best ways how to protect and repair the magnetic field.

Electromagnetic Shielding.

The electromagnetic field is almost everywhere around us. It is in everyday home appliances and even in toys for your children. Examples include fans, cooling appliances, motors, generators, entertainment appliances like television, and in vehicles like trains and electric vehicles. So in short, it completely surrounds us.

Electromagnetic radiations are worst for other equipment, for the environment, and in turn human health. This proves how important electromagnetic shielding is for all of us. Besides being applicable in electric fields, it is being used in textiles industries to make safe garments too. Being a barrier it safeguards us against too much exposure to harmful radiation. To work as such, the shield needs to be extra effective to fight nonionizing radiations. Consequently, it requires high magnetic permeability, dielectric contents, and high conduction.

The electromagnetic shielding encloses the electromagnetic wave in such a way that not even the outer radiations can reach the inner one. The material used in the electromagnetic shield absorbs and reflects the radiations coming from the electromagnetic field. As the signal is reflected and absorbed, they become weaker and then lost.

Different Fields Where Electromagnetic Shielding Is Being Used.

Electromagnetic shielding is being used in air-gapped systems. This makes them safer because of physical isolation between them and as a barrier to external connections. Hence, if we remove the shield and let the electromagnetic radiations emit, it will cause acoustical infections there. These Air gapped systems are used in different fields including

• Government sectors.
• Financial areas such as stock exchanges.
• Human rights organizations.
• Reporters and activists.
• Military.

These areas hold sensitive information and require safety. Moreover, home appliances have a lot to do with electromagnetic shielding to protect yourself and your surroundings too. 

Material Used In Electromagnetic Shielding.

For a better experience with electromagnetic shielding, the material used should be appropriate and of high efficiency. You must be aware of the impact of cased wires. How will you block electromagnetic radiation coming from it? It’s by the use of a braided shield and metallic foils. In the same way, audio speakers that every home has nowadays can also affect other electronics there because of drivers emitting EMI. So we will use an inner metallic casing to stop this from happening. 

Moreover, other wireless networks can also cause wireless attacks and signal corruption in those businesses. To prevent this, we will need to install conductive paints. Other electronic components include aluminum, copper, graphene, nickel, silver, carbon fiber, etc.

In addition to this, electromagnetic shielding is used under grounds too. Wires used under the grounds can cause too much noise and interference also. Here, using fe rrules, capacitors and grounded wires is the best way to prevent EMI. These specialized materials and twisting the wires with the ground will reduce EMI noise and interference under the ground.

Final verdict.

All the uses and processes that we discussed above, prove the significance of magnetic and electromagnetic shielding. We may not have regarded it earlier, but now we have figured out that it is present almost everywhere around us acting as our safeguards against harmful radiation from the magnetic and electromagnetic shields.