Measuring Frequency of an EMF with Gaussmeter: An Inquiry

AI Thread Summary
To determine the frequency of the generated electromagnetic field from the coils excited with 15 V AC, it is noted that the frequency of the electromagnetic field (f_field) matches the frequency of the AC source (f_AC source). For example, if the AC source operates at 60 Hz, the electromagnetic field will also oscillate at 60 Hz. This relationship is based on the principle that the magnetic field direction changes in sync with the voltage alternation. Therefore, measuring the frequency of the AC source provides the frequency of the electromagnetic field. Understanding this relationship is essential for accurate EMF analysis.
mit_cool
Messages
20
Reaction score
1
Hello,
I got two series connected coils which I exited with 15 V AC. I got EMF between the space in the field and I measured it with gaussmeter saying 200 µT. I want to know the freqency of that generated electromagnetic field? Does anyone know how to do it? Is there any Equation for it?
Thanks,
Mit
 
Engineering news on Phys.org
Hi MIT. ##\quad## How about ##\ f_{\rm field} = f_{\rm AC\ source}\ ## ?
 
The frequency which the B field changes its direction is the same frequency which the Voltage alternates. If you had a 60hz Vac, the B field would follow also this frequency.
 
  • Like
Likes BvU
Oh ya.. very simple.

Thank you guys,
Mit
 
Hi all I have some confusion about piezoelectrical sensors combination. If i have three acoustic piezoelectrical sensors (with same receive sensitivity in dB ref V/1uPa) placed at specific distance, these sensors receive acoustic signal from a sound source placed at far field distance (Plane Wave) and from broadside. I receive output of these sensors through individual preamplifiers, add them through hardware like summer circuit adder or in software after digitization and in this way got an...
I am not an electrical engineering student, but a lowly apprentice electrician. I learn both on the job and also take classes for my apprenticeship. I recently wired my first transformer and I understand that the neutral and ground are bonded together in the transformer or in the service. What I don't understand is, if the neutral is a current carrying conductor, which is then bonded to the ground conductor, why does current only flow back to its source and not on the ground path...
I have recently moved into a new (rather ancient) house and had a few trips of my Residual Current breaker. I dug out my old Socket tester which tell me the three pins are correct. But then the Red warning light tells me my socket(s) fail the loop test. I never had this before but my last house had an overhead supply with no Earth from the company. The tester said "get this checked" and the man said the (high but not ridiculous) earth resistance was acceptable. I stuck a new copper earth...
Back
Top