So according to this adding the ferrite bead to my amplifiers power cable wouldnt compromise the powersource but will filter high frequency noise right?
I sometimes get MASSIVE Interference from my PC Tower & Marshall Guitar Amp while playing along to songs on TH-cam. The computer glitches with a loud BUZZ & a frozen blue screen. I can't move the PC away from the Amp (they are 2-3ft apart & you're saying one on these coils on the PC & Amp power cable going in to wall will do the trick, or do I have to do more than one per power wire? Thanks
Thank you. I enjoyed your video. Your covered a lot in such a short video. I wish my physics instructors and engineering mentors had been half as good as you. Thanks, again.
This looks like a differential mode application instead of a common mode application like how they are usually used. Could you design an experiment to demonstrate the effect in the common mode application?
I get that this is a student exercise, but it's kind of off target. First, just in terms of validating the test setup, why on earth does the 0-20MHz signal generator have such a wildly fluctuating (voltage) amplitude as recorded by the spectrum analyzer? That already suggests something fishy. Next, given that the point of the demo is to examine a magnetic phenomenon, we're vitally interested in the current, and consequently in the load impedance. Is the spectrum analyzer set to high Z input, or 50 ohms, or what?
Jamie, instead of using a separate signal generator, you could use the spectrum analyzer's built-in tracking generator output as your signal source. Since it tracks the spectrum analyzer's scanning exactly, you would get a smoother curve without any manual knob turning.
Thanks for the informative video Jamie! You especially revealed to me how easy it is to use the peak-hold function of a spectrum analyzer, and a manually swept frequency source, to do essentially the same job as a network analyzer; nice!
Thanks Jamie, you have done the exact same experiment I had in mind for visualizing what those ferrite's get up to. I could spend all day with that equipment you have there. I'm still trying to figure out what Signal Gen and Scope I need for my lab.
Poor video unfortunately. You failed to mention the difference between common mode chokes, differential mode chokes and ferrite beads. Also no mention of the fact that beads are designed to have a very lossy ferrite material. No mention that insertion loss is related to the ratio of bead impedance to load impedance.
She says the flux in the ferrite bead is proportional but not directly proportional to the magnetic field a it is in a linear medium i think this covers your lossy material point (to some extent at least !). I think she was simply trying to show the usefulness of ferrite beads .
@Roger Onslow perhaps you need to create some content of your own and show us exactly what you want and allow us to critique your video. She did exactly what she said the video was about. All of your topics are off topic and therefore moot.
Very interesting presentation. I studied EE for a while 40 years ago and remember some of it. I have a plasma tv that is causing massive RFI on my HF radio. Would a choke help and where would I put it? TV, antenna lead to the radio or elsewhere?
Hello Jamie, Would a ferrite chokes work to remove rfi in ham radio gear from powerline transformers etc.? Any help would be greatly appreciated. So I can make a decision if I should purchase it them.
From what I documented myself I learned that materials 75 and 31 work good for low and high frequencies, material 43, 44 and economical 46 for broadband frequencies, and material 61 for high frequencies.
it's funny how the most valuable video on youtube regarding ferrite beads and their noise reduction is also the noisiest video in the same category
So according to this adding the ferrite bead to my amplifiers power cable wouldnt compromise the powersource but will filter high frequency noise right?
You're cute 😍
I sometimes get MASSIVE Interference from my PC Tower & Marshall Guitar Amp while playing along to songs on TH-cam. The computer glitches with a loud BUZZ & a frozen blue screen. I can't move the PC away from the Amp (they are 2-3ft apart & you're saying one on these coils on the PC & Amp power cable going in to wall will do the trick, or do I have to do more than one per power wire? Thanks
Brings back memories for an old timer 😊
But both wires normally pass through the ferrite, often more than once. Common mode rejection!?
So should we buy these and put them on most cables on a household plese? Or just on some cables? Which ones please? Thanks :)
You answered everything I needed, Thanks Jamie.
Nice explanation , can you put the bead on both wires at same time ?
Thank you. I enjoyed your video. Your covered a lot in such a short video. I wish my physics instructors and engineering mentors had been half as good as you. Thanks, again.
Beautiful and smart! Great video
*👍класс и привет от тренера по футболу!!!!!*
God you are a qt
This looks like a differential mode application instead of a common mode application like how they are usually used. Could you design an experiment to demonstrate the effect in the common mode application?
I like how your blue top is color coordinated with the machinery and those tubs! :-)
you're cute
Too bad method. If you want to understand ferrite beads, watch this video. Jamie, you too. th-cam.com/video/81C4IfONt3o/w-d-xo.html
It's awesome to see more women getting into this work.
Jamie can I use ferrite in a ignition coil high tension wire?
What would happen if insert both cables into hole of ferrite bead?
Thank you
Thanks, would have been great to see the effect of looping the cable around the ferrite bead too.
Too much theory and too few practice.
I'm trying to work out what frequencies its reducing, is it mainly above the 1mhz range that is being reduced?
Thanks and well done. Hope you got a great grade.
4 years of EE school and not once did I come across a chick this cute... went to the wrong school.
I get that this is a student exercise, but it's kind of off target. First, just in terms of validating the test setup, why on earth does the 0-20MHz signal generator have such a wildly fluctuating (voltage) amplitude as recorded by the spectrum analyzer? That already suggests something fishy. Next, given that the point of the demo is to examine a magnetic phenomenon, we're vitally interested in the current, and consequently in the load impedance. Is the spectrum analyzer set to high Z input, or 50 ohms, or what?
Yep. Sadly this vid gets lots of praise, and I assume it’s because of you know what.
Interesting subject 👍...
I'd be curious to see this same demo, or the data set showing different ferrite material mixes!
Thanks a lot Jamie.
Jamie, instead of using a separate signal generator, you could use the spectrum analyzer's built-in tracking generator output as your signal source. Since it tracks the spectrum analyzer's scanning exactly, you would get a smoother curve without any manual knob turning.
Your video is really good! How come you have not made any more videos? Thanks for sharing!
Thanks for the informative video Jamie! You especially revealed to me how easy it is to use the peak-hold function of a spectrum analyzer, and a manually swept frequency source, to do essentially the same job as a network analyzer; nice!
It is kinda useless without mentioning the frequency scale.
lo to 20 MHz, apparently
Well presented but the baseline data showed a significant roll off in frequency.
Jamie, please come fix my *major* noise problem on a new HAM radio installation. :-)
Cut out the speakers, best way to reduce noise. Or use morse.
at last i'm beginning to understand this a bit better, many thanks, good video
Very well explained thank you thorough
sounds like a data center rather than electronics lab
what if we cover the whole wire with aluminium foil?
I think that would end up creating an inductor.
That’s what a coax is. The shield is made of aluminium, copper or what it now can be.
It will help the circuit pick up conspiracy theories?
@@Graham_Wideman That's hilarious :-)
Thanks Jamie, you have done the exact same experiment I had in mind for visualizing what those ferrite's get up to. I could spend all day with that equipment you have there. I'm still trying to figure out what Signal Gen and Scope I need for my lab.
Very informative video thanks for posting
Poor video unfortunately. You failed to mention the difference between common mode chokes, differential mode chokes and ferrite beads. Also no mention of the fact that beads are designed to have a very lossy ferrite material. No mention that insertion loss is related to the ratio of bead impedance to load impedance.
Plenty of room for that in the comments.
Roger you should make a video and show us all how you would have done.
She says the flux in the ferrite bead is proportional but not directly proportional to the magnetic field a it is in a linear medium i think this covers your lossy material point (to some extent at least !). I think she was simply trying to show the usefulness of ferrite beads .
@Roger Onslow perhaps you need to create some content of your own and show us exactly what you want and allow us to critique your video. She did exactly what she said the video was about. All of your topics are off topic and therefore moot.
Great video. Could you do one about the practical uses of ferries showing the decreased noise in common devices? Thanks
Very interesting presentation. I studied EE for a while 40 years ago and remember some of it. I have a plasma tv that is causing massive RFI on my HF radio. Would a choke help and where would I put it? TV, antenna lead to the radio or elsewhere?
Better demonstration th-cam.com/video/81C4IfONt3o/w-d-xo.html
Good video.. Make more....
Why choose for a ferrite bead instead of an RC low pass filter?
Simplicity
I though RC kind of sucky at high frequency due to stray capacitance.
why not use A bead that hugs the circumfrence of the cable CLOSER and also a stronger field as a NEODIUM magnet would offer?
Hello Jamie, Would a ferrite chokes work to remove rfi in ham radio gear from powerline transformers etc.? Any help would be greatly appreciated. So I can make a decision if I should purchase it them.
From what I documented myself I learned that materials 75 and 31 work good for low and high frequencies, material 43, 44 and economical 46 for broadband frequencies, and material 61 for high frequencies.
I liked your video only because you're pretty. Well not only :P I came here and get info I wanted, thanks.