Measure 2 magnetic fields operating at different frequencies?

In summary, the conversation discusses the use of two coils to generate alternating magnetic fields at different frequencies. The question is raised about the possibility of measuring only the high-frequency field when both fields are active. One suggested solution is to turn off the low-frequency excitation, while another is to use a Hall probe inside the high-frequency coil. It is also mentioned that filtering the output would result in a mixed frequency signal.
  • #1
ductrungvn
6
0
Hi,

I have 2 coils arranged next to each other. One of them is used to generate alternating magnetic field at several Hz, and the other one also generate alternating magnetic field but at higher frequency (several kHz).

Are there any magnetic sensors that can measure only the high-frequency magnetic field when both of the magnetic fields are being generated OR are there any possible ways to filter (or determine) the high-frequency (kHz) one?

Thank you very much!

Best wishes!
 
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  • #2
The best way would be to turn off the low frequency excitation. Why can't you do that?

Alternatively, you could get a Hall probe and put it inside the HF coil. The field there should be mostly that of the HF excitation.

Away from the two coils, the magnetic field at anyone point can only have one value and this will vary with the combined effect of the two coils. You can filter the output, but the result would still be that of one frequency mixed with the other.
 

Related to Measure 2 magnetic fields operating at different frequencies?

1. How do you measure magnetic fields operating at different frequencies?

To measure magnetic fields operating at different frequencies, you can use a device called a magnetometer. This instrument uses sensors to detect and measure the strength and direction of magnetic fields.

2. What is the importance of measuring magnetic fields at different frequencies?

Measuring magnetic fields at different frequencies is important for understanding the behavior and effects of magnetic fields in different environments. Different frequencies can have different impacts on living organisms and electronic devices, so it is crucial to understand and monitor them.

3. Can magnetic fields at different frequencies interfere with each other?

Yes, magnetic fields at different frequencies can interfere with each other. This interference can cause distortion or disruption in electronic devices, as well as affect the behavior of living organisms. Proper measurement and monitoring can help mitigate these effects.

4. What are some common sources of magnetic fields at different frequencies?

Magnetic fields at different frequencies can come from a variety of sources, including power lines, electrical devices, electronic equipment, and natural phenomena like lightning and geomagnetic storms.

5. How do you analyze and interpret data from measuring magnetic fields at different frequencies?

Data from measuring magnetic fields at different frequencies can be analyzed and interpreted using specialized software and algorithms. This allows for the identification of patterns and trends, as well as any potential interference or abnormalities in the data. It is important to have a thorough understanding of the data and its context in order to accurately interpret it.

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