Hi,

I am trying to measure magnetic flux density (B) in tesla using a circular loop of 0.5 inch or 0.0127 meters.

I got the followjng formula from the following two papers

Voc = 2 x pi x f x A x B x N

Where

Voc = open circuit voltage f = resonant frequency (Hz) ..............in this case 100KHz A = area of the coil ( in meters) B = magentic flux density ( in tesla ) N = number of turns of coil

The links of the papers are as follows

Paper 1:

Page 7 on Paper 2:

I build the circular loop using the following wire

I soldered the two terminals of the circular loop to one end of the BNC cable and connect the other end to the scope.

I have following confusions

- Did I use the correct wire? I meant guage and resisatance.

- Should I connect oscilloscope probe to directly to the loop or connect the loop to the scope using BNC cable is good?
- I calculated the area of the coil as follows

A= pi x R x R which turned out to be 0.0127meter square. But the first paper discuss about the effective aperture which one is correct?

- The magnetic field is resonating at 100 KHz. I am using the one turn circular loop to measure field without resonating at 100KHz. Is this a good approach. And if I want to measure the field using resonance than what will be the setup?

- Should I use peak to peak voltage or just peak ( Voc) to calculate "B" ?

Thanks jess