Fundamentals of Halbach Arrays
HTML-код
- Опубликовано: 28 июн 2024
- Whenever people start talking about strong magnets, the Halbach design always comes up. Wikipedia has a good section on the basics but I wanted to help people understand more of the real numbers and applications. This will help you understands Halbachs much better and help you to see if a Halbach is the right solution for you. Check us out at www.supermagnetman.com
Quick link to products:
Halbach Assemblies Collection: supermagnetman.com/collection...
LIKE & SUBSCRIBE HERE: www.youtube.com/@SuperMagnetM...
WATCH OUR TOP VIDEOS HERE: • Best of SuperMagnetMan
About SuperMagnetMan:
Everyday we assist customers with magnet selection and design. The need to make products smaller, less expensive, and still meet the magnetic field requirements has lead to our ability to micro machine many shapes and sizes, as well as set up assembly lines that mean repeatability and ramp up as needed. Our online store offers a large selection of magnets and magnetic assemblies and our staff of experts can help with your specific needs and answer your questions. Feel free to give us a call.
Browse our store to purchase magnets:
supermagnetman.com/
If you require custom manufacturing or engineering services we've got you covered. We have a division called, SM Magnetics, devoted to taking care of your specific needs from concept through mass production. Our technical team is skilled in the medical, aerospace, consumer electronics, sensors, motors and many more industries using the best quality magnetics & magnetic assemblies. Contact us today if you required these services.
Learn More:
smmagnetics.com
FOLLOW US:
Facebook:
/ thesupermagnetman
Instagram:
/ supermagnetman
LinkedIn:
/ super-magnet-man
Twitter:
/ smmagnetics 
Наука
I've done exactly 11 minutes and 33 seconds of research in this field and I must say that I concur.
I concure Dr.
The evidence for your concurrence is substantially backed by ME. Ph.D
"We could never lie about anything and so should always be trusted for everything." Edward Righteousman VII Ph.D
Thank you Doctors. I know sometimes the toll taken on our personal relationships, our minds and our bodies for this research may seem in vain. When this feeling comes, just remember the children. We're doing God's work gentlemen.
😂
George I’m genuinely impressed you still have all your fingers after so many years of playing with big boy magnets. Clearly a pro!
video: "Findamentals of Halbach Arrays"
me, having no idea what a halbach array is: "Ooh."
I like how you carefully put the magnets down apart from each other. I wonder how many times you got bit.
He still all of his fingers.
LOL!
Once they are in an array like this and shielded somewhat by the material that encases them, the attractive force between the two arrays at any significant distance is very low. The whole idea with this type of array is to concentrate the field towards the center, so that doesn't leave a lot of the field for the outside.
Thank you for this! I'm a Biochem major that has been researching table-top NMR spectrometers, which are starting to utilize Halbach magnets. I was trying to wrap my head around how the fields were rolled and directed into such a narrow field, and this really helps!
I have the alphabet magnets on my fridge. His are cool too, I guess.
Me too bro but I’m missing a few lol
I have a b on my fridge
When i was a kid i slept over my friends house and got drunk. We found his dad's whitey tighties with skid mark and we wet them and froze them, mounting skid mark on display over a glass cup. So that way it would by discovered in morning during breakfast. He was angry for some reason. Some people huh. Oh well
@@SoulDelSol Skidmark ice sculpture Dan? You Sir are a goddamn legend in my book. Encore!
I believe so
For a perpetual motion machine try ↑ ↑ ↓ ↓ ← → ← → B A
Select Start
you may continue.
alejosky 😂😂😂😂😂. I love Contra.
It works on Mortal Combat too.
It works in many places. Just google "Konami Code".
the konami code?
No idea how I ended up here, I understand 1% of his language but I somehow have to watch...
By language you may not understand, but internally you naturally understand.
Best description I’ve heard. Thank you.
They also work interestingly well when nested as a gearing system for torque transfer. Basically, a gear box which doesn’t wear out as the flux fields act as the teeth for the gears ;-)
Very interesting information. Extremely well presented and explained. Congratulations SuperMagnetMan on a job well done!
Thanks for taking to the time even for us old guys who never got a chance for a completed secondary much less college. 73 Hamilton Ontario Canada
Electric motor's speed to torque ratio depends on its inductance, stronger magnetic field helps shift this ratio towards smaller RPM and higher torque, power is unchanged. With low RPM motor you need less (or none) gearing, so total drivetrain efficiency is higher, but the downside is that the shafts and the windings armature need to be made tougher and bulkier to handle all that torque.
Which is why distributed power as close as possible to contact patch while maintaining low unsprung weight is crucial in automotive.
“2 inch pyramid to a 9 millimeter top”
Wow, imperial and metric in one sentence. 👌
I often use millimeters for small measurements, even though I live in the USA.
This is because the imperial system is so garbage and outdated it doesnt even include measures near this small so we kind of have to use millimeters, and we use centimeters a lot too. All arbitrary in the end though
Bass 'N'Bluegill & Noxabellus
I’m glad to hear that. May I suggest you to try the metric system for larger measurements as well? 😉
I don’t get how you deal with inches, feet, what comes next yards? and miles. You all must be very good at arithmetic.
Btw you could use a Thou or would that be to easy to convert into inches? ;)
(I’m sorry, couldn’t help myself there)
Anyway tx for explaining (i’m serious this time)
Merry Xmas!
Big as a walnut at the base, closer to an acorn at the tip.
Better?
if nasa tried to send it to mars, it would crash....
timmy
Magnet man, you are very good. very exact, simplified , facts. and your not boring. just wanted to thank you.
Ohhh boy oh boy did I just find the sweet channel. Subbed. Thank you for your contributions to society offering precious free ondemand education.
Very educational video - awesome instruction and narration.
ps.. thanks for no music
Thank you. I did not known anything about about shaping and focusing and directing magnetic fields... And their use in electric motors for electric cars..
I've learned something today. Don't know that I'll ever use it but found it interesting enough that I've bookmarked your site.
Thank you for share your knowledge.
This arrangement seems to be very useful.
The title of this video should be "Why Halbach arrays are so damned expensive".
Very awesome! I loved watching!
I have things to do today, but I can’t pull myself from this fascinating channel ;)
Fascinating. And that Bob Mortimer is much smarter than I realised.
I can’t wait until I can understand what was just discussed in this video.
Having spent 4+ days of spare time reading about magnets...I'm almost there!
Ignorance Is BLISS !!
This actually helps me a bit with my drone work I'm glad I looked this up
How dose this help?
@@smooveking773 I'm assuming because weight is an issue, you can use a smaller motor with the same power or a same size motor with more power using these magnet arrays
@@johnmartinez9220 oh okay i just looked up most drones have a airtime of ten minutes so yea makes sense thanks
@@smooveking773 Damn that's short!
@@johnmartinez9220 i wish there was halbach array of lithium batteries to provide greater storage of energy as well
Thanks. I will incorporate this in my next design, but using directional coils rather than magnets.
This is the first ad I've ever wanted to subscribe to. Thank you!
You do aeroponics?
Used to. Now I do Kratky. But I might go back and do aeroponics.
Could you make a video about magnetic filament in 3D printing?
Very informative, thank you!
ps thanks for no music, better to concentrate.
They have meds for that
This is a great explanation of the Halbach Array! It made it very clear!
Simple, yet very explenatory video! I love it! Thank you!
I come back to this later, omg. my head hurts
I want to hear him say "Dino DNA!"
"Bingo,you got"
Awesome lecture! Thanks a lot!
A costumer education channel with 18000 subscribers says something about a company. Very interesting video. I've learned something today that I promise I will never in my lifetime use. So thank you I think.
Do these magnetic arrays weaken one another over time?
I found a magnet in an old log building when I was young that was date cast 1896 Milwaukee and it still seemed very strong to be that old could pick up a 3 lb. Iron door stop no problem.
Thanks for sharing.
yes they do..
"hundurd"
Thank you, very informative.
Looking forward to more of this
how are you measuring the magnetic field?
With a gauss meter
Listening to his voice first thing I thought of "Mr Hat" - Mr Garrison from South park !
Uunn kay?
@@imnewtothistuff Uuuunkay wasn't Mr Garrison man!
I heard Kent Hovind
Absolutely bloody love it!
You are genius, thank you for continuing the work of scientists...
Nice video
I’m curious about what your thought are on Theoria Apophasis channel. He goes into magnets as well....thanks
His work is wrong and I have shown this with my own observations...all on video on my channel.
A ringlight with twenty LEDs makes twenty glowing stripes. (Rotate the ringlight, and the stripe-pattern rotates too.) "Ferrocell" isn't showing magnetic field lines, instead it's showing LED reflections from microscopic strings of particles in ferrofluid. It's much like illuminating some iron filings with a lighting strip full of separate LEDs. Yes, the iron filings will produce glowing reflections, but the stripes of light-reflection aren't "field lines." The actual micro-pattern of iron particles WOULD show the magnetic field shape. But all we can see is the optical "glints" or "highlights" caused by the curved strings of reflective microparticles. (It's much like the glistening highlights of shiny hair. We want to see the actual hair patterns, rather than only the curved glowing reflective highlights caused by the hair.)
@@wbeaty I show magnetism creating spheres....no one else has...ever....lets see gravity do it :P
@@ScientificLee Magnetism is a tensor force of gravity. Gravity only operates on spheres. If you want to see gravity make spheres, look down, and consider that magnetism and gravity are simply multiples of the same force...
@@SteveCalamia
I take it by your reasoning, that if a celestial body is not spherical (and there are countless trillions of the them), it will not develop a gravitational field in the space/time field in which it exists?
Sorry. Any mass, irrespective of its' shape, will generate its' own gravitational tensor. To date, that's a known characteristic of not only barionic mass but dark matter as well.
Got me subed buddy ...i already heard of the array ...very cool and simple explained , well done👌..
I'm a metaldetectorist do magnetism intresses me alot , we sometimes go magnet fishing aswell ....
I assume they don't go well together even if metaldetector is switched off ?
Am i right ?
For now i keep them at least 8 ft apart..
Grtzz johny geerts
Thank you for what brings you joy
Thanks for breaking this down. I have a better understanding :)
@ 3:20 Halbach diagram is inverted. Strong side is actually at the bottom and weak side is top.
++
Can one revert the polarity of a permanent magnet like he says at 9:40? How does one change polarity without changing the domain?
Geo magnetic procession! Ken wheeler in my opinion has done more to give an explanation into what magnetism actually is than anyone.....this is a sales ad.....I’d of used the wording plane of inertia...
precession
gmeast predictive text on apple is getting worse...
Turn it off then.
Blake Julian I’m from the group of society that was never informed of the secrets of magnetism as well......only a select few throughout history has ever known....the point has come where even those special people don’t have special teachers anymore....the knowledge was learned along time ago and was kept to tight quarters......the facts are clear..without magnetism there is no electricity....it’s also true that we live on a magnet 🧲...which brings a lot of things into question????.....Nicola Tesla was an electrical engineering genius...who’s work was hi jacked by the USA...under national security reasons...it’s also the case that his work is founded in the heart of the technology we have today....Nicola Tesla greatest discovery was knowing and understanding magnetism.......if we all knew...we’d have no need for government or corporate management.....
you have given a real basic lesson that any person can understand.
Q. what is the life span of the halbach compared to a standard shape.
Thanks! very informative.
Is it possible to use magnets to have levitating chairs.🌿
Yes and no. No arrangement of magnets can make another magnet levitate, but you can do it with electromagnets and PID loops.
Here is a video from Veritasium about levitation using rotating halbach arrays over a conductive plate. ruclips.net/video/pCON4zfMzjU/видео.html
@@kennethstudstill Thanks Ken. That was super cool.
ET Not entirely true. You could probably use permanent magnets and levitate a chair, but have other mechanical stabilization. Meissner effect could levitate a tiny model chair using magnetism, but this isn’t very practical.
@@ET_AYY_LMAO Wrong, you can use a magnetic array that focuses the magnetic field around the outside and have it levitate another magnet that is repelling (while attached to an object to keep it from flipping and attracting)
Is SuperMagentWoman your polar opposite?
Tuttomenui bruh
no, it diamagnetic badger.
Followup question: Is she bipolar?
Do you think they measure magnets with Tesla for fun? No women engaged!
Does SuperMagentWoman know how to spell Magnet?
Maybe that's one of her super-powers.
Thank you! What a great video! And “YES” .... Wiki should have a web-link to this video :-)
I've always wondered if you could cut a magnetic angle. Very interesting video, thanks for the time.
Is there such a thing like 'the magnet lens'?
expand? Are you thinking light arrays or focal points in a sense? like the sun per say?
How do you cut the magnets without heating the metal and destroying the magnetic field?
With water jet! ruclips.net/video/lXVmEPU1L1k/видео.html
A diamond saw blade (non magnetic) with an air jet to blow away the particles.
A simple bandsaw and some cutting oil works just fine.
Edit>>> I should say that with a caveat: Neodymium magnets are NOT easy to cut. They crumble easy. But most other magnets can be cut with not problem if you use the correct blade type (abrasive for ceramics) and plenty of cutting oil. I actually had a neodymium magnet pop like a firecracker once when trying to cut it with a hacksaw!
Most magnets are created by mixing metal powders then slow baked in a mold or cast, then electrically magnatized after they are baked into the shape wanted.
Heating is a challenge, but so is breaking. Rare earth magnets tend to be pretty brittle. That's why it is generally worth it to just pay someone who has the equipment and practice to do it for you ;)
Those ring magnets, if stacked to form a cylinder would make an interesting magnet for exploring the searl device.
This was super cool Thank you for the knowledge
the strong side is wrong in the first diagram. the weak side is on top and the strong is on bottom
I noticed the same thing! He seems to know his details but missed the big picture. The fluxlines are 'shortened' inside the array by the horizontal magnets. The direction of these magnets is what causes asymmetry the Halbach.
"Come on home, girl" he said with a smile
"You don't have to love me yet, let's get high awhile
But try to understand, try to understand
Try, try, try to understand, I'm a magnet man"
Sorry. Couldn't help it.
it's ok , only Sane voice I can identify , so far ...
magic man :/
Ha ha ha
GREAT 😂😂😂
:) I learned something new today!
this is my the first video that compelled me to subscribe right away I am neither smart nor good looking so this stuff is a challenge for me to understand. I am have zero background in this subject I suspect it will come in handy in my plans... I want to make.. build.. wind, water and solar electrical generator in Puerto Rico... it just seems like a smart thing to do especially in light of the current conditions we are experiencing. nuff said. Thank you
I didn't know Mr. Garrison from South Park was a real guy!
Hhmmm kaay...
Some people jump out of airplanes for fun....
....some people wear an Apple Watch handling 1.2 Tesla magnets.
If you actually bothered to watch the video and listen to what was being said you'd know that the magnetic field strength of that large halbach array is only 1.2T in the gap in the center of the ring and since I didn't see him squeezing his wrist and / or watch through it I don't think he has to worry.
@@asvarien OH MY GOD
A JOKE? ON THE INTERNET?
CALL THE GUBBERMINT THIS MUST BE STOPPED
@@AverageJoe8686 You have an extremely simple sense of humour.
@@asvarien and you have none at all.
@@AverageJoe8686 Ah, the sense of humor where you immediately feel the need to defend it against anyone who didn't understand what you said was a joke. Even though there was no indication of humor presented in the original comment. And then feel the need to insult anyone who doesn't get it.
THAT sense of humor?
Yeah, that's what the rest of us call "simple".
Thank you for shared!
thanks for the sharing
SuperMagnetMan would you please make and describe a ferrocell in a video.
please include a Halbach Array in same, Thank You.
Very interesting, although I didn't understand a word of it.
Excellent . Thank you.
Wow. Mind Blown!!!
The algorithm has decided I needed to know this much about magnets.
Since the video ends with a sales pitch, you can be fairly certain that this company PAID Google to promote this video to people who view lots of science-related videos.
So what can it do that will amaze us?
Not a whole lot, actually. Just a few minor things, like electric motors, speakers, lasers, particle accelerators, fridge magnets, the list goes on...
he has already shown us !!!!
Look at the TESLA motor.
Maybe uh be in the motor of a car that goes 0-60 in 1.9 seconds. ¯\_(ツ)_/¯ idk. Maybe that’s not too impressive but just a suggestion
You guys know magnets arent real right?
Thnx man..so helpful ....for my research 👍
Awesome!!! i'm grateful
"on the wikipedia" just like when I tell my friends "on the internets"
Be careful with those magnet arrangements, you might open a portal you can't close :(
A black hole lmao.
Fun for a retired EE - thanks
Love this!
So it's like Mary kay for magnets....... makes them more attractive.
"fifty-two hunderd" :D
Excellent video. Thank you.
Thanks - I appreciate that.
Very Good explanation! You are a good professor.
I thought the Halbach array for the electric DC motors was stacked both as layers and as in relation to the next reducing the cogging effect as well as making one side of the magnetic field strength stronger, the other side not necessarily weaker but more “pancaked” out (Changes the shape of the field). The goal of producing a stronger field whether inward or out depending on the other component of an electric motor. (Either can be the stator or the rotor) . I tried to attach a drawing to show what I am attempting to say.
Mike Gillett can’t attach squat, we are on youtube after all
This video is endorsement by Magneto from x people's.
Great stuff! Could you please tell whether hallback array can be used in a generator? Thanks.
Very interesting thank you for sharing this!
So i thought that i was watching a scientific channel but when the video ended
I was surprised to be watching an advertisement for magnets
This is the sort of advertising I appreciate.
One definition of marketing is finding people who would benefit from buying your product/service and telling them about it.
Run for your lives. The Ads are learning to disguise themselves as edutainment.
@@nobodyimportant2470 Ads disguised as edutainment = evil
Ads which are edutainment = good
Often hard to tell the differences unfortunately, but I think this is the latter. ;)
(Hank Hill voice) I sell magnets and magnet accessories.
Fascinating!
Great instructional video
It's 1:00am and I'm on this side of youtube again
How dare you call me out like this... I have a screenshot of it now and i dont like it...
3:00 am for me... it just popped up. I don't even watch this stuff
1:06am
@@droneofwar9437 ?
@@exmortiss it was 1:08 AM
"hwat"
Very interesting. Thank-you. I didn’t know how magnet could increase in magnetic attraction force.
right hand rule / 90 turn and only two face the same way. Try using two apposing bowlshaped magnets with their bottom of the bowl facing eachother. In the center you'll find some interesting effects on the center edge and surrounding area. Try surrounding that setup with some non magnetized steel bearings and then see how they behave inside and outside the center point.
he never showed what it does.
Its because its so incredibly common, like in motors, generators, etc...
ruclips.net/video/pCON4zfMzjU/видео.html
@@flipnap2112 Thanks for the link. Very cool.
The amout of times "Halbach" is mentioned I am surpised Manitowoc County havn't claimed this video as evidence
Awesome; thanks!
Great video. I have made a few that directs the center to a single point for use with lasers. Setting them in its fixture was extremely hard and scary.
A sphere?