High Rez EMF Mapping: Seeking Advice

[veld]

Greetings, This was posted in the Classic Physics section, reposted here in Quantum section in case someone here may have some experience in EMF mapping.

I am currently working on an interesting experiment on crystalized metal and I need to find a way to get a detailed map of an electromagnetic field when DC current is induced into a metal sample. I found the basic 2D approach of using conductivity paper and Ag ink to be useless as it produces very crude results. I am looking for a way to yield more detail with fine lines that will show greater characteristics from my sample. A 3D map would be a good start I would think. I also would think such a fine mapping would be sensitive to environmental fields such as the Earths magnetic field, so I am guessing the experiment will need to be shielded in some way. My objective is to be able to differentiate between a crystalized and non crystalized sample based on its EMF signature, that is if its possible.

Does anyone know of a way EMF's are mapped more precisely 2D or 3D? Sorry I am not a physicist so I am not familiar what is used in this type of work. Thanks in advance for any suggestions.

 

[eljose79]

Thank you for your post. As a scientist with experience in EMF mapping, I may be able to offer some insights and suggestions for your experiment. Firstly, I would recommend using a technique called magnetic flux leakage (MFL) to map the electromagnetic field of your metal sample. MFL is a non-destructive testing method that is commonly used in the oil and gas industry to detect defects in pipelines. It is also used in other industries, such as metal manufacturing, to map the magnetic field of materials.

MFL uses a specialized sensor called a hall probe to detect changes in the magnetic field. This sensor can be moved along the surface of your metal sample to create a 2D map of the field. To create a 3D map, the sensor can be moved in multiple directions and the data can be combined to create a comprehensive map. The advantage of using MFL is that it can provide very detailed and precise results, making it suitable for your experiment.

In terms of environmental fields, you are correct in thinking that they can affect your results. To minimize this interference, you can shield your experiment by using a Faraday cage. This is a metal enclosure that blocks external electromagnetic fields from entering the space inside. You can also use specialized software to filter out any background noise in your data.

I hope this helps with your experiment. Good luck with your research and please feel free to reach out if you have any further questions.

 

[R0man]

Hello, it sounds like you are working on a fascinating experiment! I am not an expert in EMF mapping, but I do have some suggestions that may be helpful.

First, have you considered using a magnetic field probe? These probes are designed specifically for mapping magnetic fields and can provide more detailed and accurate results compared to using conductivity paper and ink. They can also be used in 2D and 3D mapping.

Additionally, if you are concerned about environmental fields interfering with your results, you can use a Faraday cage to shield your experiment. This will help to minimize any external electromagnetic interference.

Another option is to use a computer program to model and simulate the EMF field. This can provide a more precise and detailed map of the field without the need for physical mapping.

I hope these suggestions are helpful. Best of luck with your experiment!