I am following the below method so far & need guidance to further modify it:
1) Making a specimen
2) Making an Electromagnet using prepared specimen
3) Using DC & AC Source to find BH- Curve
4) Calculate Permeability from graph by taking respective points
Please make your suggestions regarding all 4 points
In general, a device that measures the strength of a magnetic field is called a magnetometer. The official SI unit for magnetic field strength is the tesla (T). Magnetic field strength is also measured in units of gauss (G) (1 G = 10-4 T). ... You will measure the voltage using a multimeter.
Hi.
I guess this is an exercise, so I'm just going to give you the hints.
First you have to build a solenoid: the better you wind the coil, the more field it will produce, since B is proportional to N x I / L, where N: number of turns, I: intensity, L: length of the solenoid.
Then, you have to introduce the magnetic sample in the middle of the solenoid, and you have to wind a pickup coil (also called secondary coil) in order to have a Hysteresis Loop Tracer.
Good luck!
Hi
Use VSM test for calculating the magnetic strength of your material.
Best
It all depends on the parameters...what are you REALLY interested in..the field vs current ar one point..the field homogeneity..saturation properties etc etc..you may find a lot of hint in the IMMW proceedings (Intl magnet measurement workshops)and Also on the JACOW pages as well as in the CERN library ...CDS CERN..(all public access with free downloads.In addition you may look into the CERN accelerator school proceedings for magnetic measurements (via CDS CERN)
I am summing up all that you need to do regarding magnetic measurements;
1- Follow Up literature shared by Dr. Fritz Caspers
It all depends on the parameters...what are you REALLY interested in..the field vs current ar one point..the field homogeneity..saturation properties, etc .you may find a lot of hint in the IMMW proceedings (Intl magnet measurement workshops)and Also on the JACOW pages as well as in the CERN library ...CDS CERN..(all public access with free downloads. In addition, you may look into the CERN accelerator school proceedings for magnetic measurements (via CDS CERN
2- For Experimental Work, you can use either of two common methods;
First, shared by Dr. Jose-Miguel Garcia-Martin
I guess this is an exercise, so I'm just going to give you the hints.
First, you have to build a solenoid: the better you wind the coil, the more field it will produce since B is proportional to N x I / L, where N: number of turns, I: intensity, L: length of the solenoid.
Then, you have to introduce the magnetic sample in the middle of the solenoid, and you have to wind a pickup coil (also called a secondary coil) in order to have a Hysteresis Loop Tracer.
Secondly, You can use a magnetometer like a VSM, where you can provide powder samples of around 1mm3-2.5mm3 or you work with solid samples of similar size. It's quite easy to work with VSM. Further human errors in the first method can be reduced as well.
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