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It's basically how recent maglev bullet train works, especially with the superconducting traction coils, in order to move them up to high speed. They're crazy fast for a train.

what calculation you done to get these dimensions

I'm doing this for college project. My Question is what kind of material you've used for core?

Hi, I would like to make myself a diy motor but before I have a little question : How many spires do you have in your coils ?

Amazing sound 😎😎

I used the encoder strip from inkjet printer, The problem is coordinating motion between x and y while maintaining speed. If you only respond to step, then you can move only 1 step at a time which gives up the speed! You can see my build "3d printer in a microwave".

Is it possible to make a tubular one? Like a coilgun with superposed coils but who can go back and forth

Hi sir, I found ur RUclips contents on Linear Induction Motor, is very intuitive with beautiful explanation and experiment. However, I've a question, will LIM created high electromagnetic waves surrounding it which may affect electronic sensors such as vibration sensors if install nearby the LIM? Thanks.

❤ WOW 😮

Учебник "Электрические машины" А. Усольцева - отличный источник. Made in Russia😎

I was thinking about this and I wanted to link to Attwood's PHD Thesis which I found quite helpful when I was watching Professor Laithwaite's Magnetic River Videos. Attwood goes through and gives some diagrams and is quite approachable. spiral.imperial.ac.uk/bitstream/10044/1/35100/2/Attwood-AD-1980-PhD-Thesis.pdf

Hi Daniel! Great video! I know this may be a long shot since this video is 2 years old but My student design team at my university has been trying to develop our own LIM for the last couple of years. We’ve gotten very close but are having trouble in a few aspects. Specifically generating enough power to actually make a flywheel move, when we try to implement our concepts on a Larger scale. We would love to contact you and discuss our designs with you if possible. If you have an email address where we can discuss in details. That would be great!

What voltage, current, and frequency does it operate at?

very understandable!!

How does a nonferrous metal be manipulated by magnetic field

The most important thing in this video is the missing information. You should have given the credit to Prof. Eric Laithwaite who gave the idea of levitation using linear motor technology. I don't see in your video a reference to Prof. Eric Laithwaite. You are stealing material and concept from others and pretend as it is yours. I would strongly suggest you to do a search on Prof. Eric Laithwaite and find out how he he educated the whole world with crystal clear explanation practical implementation etc. I did not like your video and neither I gave you a thumbs up or down. But appreiate your work that is a copy of Prof. Eric Laithwaite.

How did you fabricate the laminations? Motors like this have one HUGE problem. They need iron behind the mover to complete the magnetic circuit. Without that, the magnetizing current is 2 to 3 orders of magnitude higher than the working current. If you put the iron behind the mover, you must deal with an attraction force that is about 10x the working force. Or you can have 2 stators with mover between to at least largely balance out the attraction forces. The mover's structure needs to mirror the stator's structure, with slotted iron with aluminum or copper closed loops in the slots, to achieve any sort of reasonable efficiency. If you intend to run the motor "open-faced", the flux density is so low that you should change the geometry of the lamination slots. They should widen out in the bottom almost to the point of breaking through to one another, to permit more room for heavier windings to carry the large magnetizing current. Design like yours (except double-sided with aluminum fin between) is used on numerous "launch" type roller coasters. The efficiency is so low that insane utility power or energy storage is required along with insane cooling to get it to survive. For this reason, that design has been abandoned in favor of permanent magnet synchronous motors.

Great experiment :) The “traveling field wave” generator could also be used in a switched reluctance linear motor.

After watching a billion versions of the "Magnetic River" video, this was recommended to me lol.

if you are going to make such a detailed and well explained video and with your expertise.. why not of a more efficient and practical linear motor like flat ironless linear motors for cnc.

This is a really fantastic video. Thank you. I subscribed in case you do anything in the future.

Have you any update on you project it is really interesting to see how much effort you have put into this.

Would you like to try making a linear induction motor with sea water. Sea water is certainly far less conductive than copper or aluminum, but it is still conductive. Magneto hydrodynamic works just barely but relues on an anode and cathode that also consume a big chunk of energy splitting water. Maybe hydro magnetic induction has potential to be more efficent. Ring launcher magnetic wave down a long iron rod, or A long linear induction tube with three phase ac.

still waiting for the next part of this 9-part series

we need parts 2-9!!!

Look up Eric Laithwaite from 1971 he had this device in his lab at the Imperial College in London

Is this constant power to all coils or fired in in a syncuence?

Thank you Daniel. Continue more videos application of linear motor. Redgards Gopal raju

i feel the real trick is to get it to reciprocate...

wouldnt you want magnets on that bar for persion?

Can you please provide with the resources you used to make this motor? I’m working on a linear motor project right know and i don’t know how to start.

I wonder where the noise comes from if there are no mechanical doors moving?

I'll never forget the 1st time watching the "Magnetic River" and "The Circle of Magnetism" Eric Laithwaite is the inventor of the Linear Induction Motor (LIM) he's also the father of Maglev. This guy was levitating shite back in the 50's and you'd be hard pressed to find anything on him. The Royal Institute black listed him for doing research with gyroscopes disproving laws of physics. He was the only presenter of the Christmas special at the Royal College to do 3 specials, this is the platform of Michael Faraday and other's that invented electricity in the beginning. You can find some of his patents online along with his assistant and co-inventor last name Easton.

How hard would it be to turn this into a linear generator? I have an application i need to generate electrical current around 72v and 100A with linear oscillation .

🎉🎉❤❤❤

I am just amazed that this works as well as it does. I saw coils made for maglev trains. The coils were busbar copper material. The thickness was just fat metal material connected together. They also use aluminum bus bar as the cost is cheaper and you can go roughly twice as far per pound. That is what the working med said. Job well done Daniels Electronics Lab.

whats going on?whens next video?

Algorithm comment

What drive are you using to power this beauty?

Daniel, I enjoyed this video. It reminded me of talking with my father about electrical device designs (I wish I had paid more attention but I chose to go into aerospace composites and machining). My son is considering following in my father's footsteps and becoming a EE. He is starting college in the next couple of years so I will be playing your videos with him to help inspire him and help with the difficult decision of which engineering discipline he wants to go into. Could you please explain a linear generator? I'm trying to understand creating electricity inside of a tube utilizing a toroidal Halbach array moving up and down inside of copper coils wrapped around and outside of the magnets. The coils would be stationary. I am most curious about all materials used, the number of coils turned, is a Halbach array a good idea, us it useful to multiple coils and magnet segments, what goes into determining the distance between the magnets and coils and any other ideas you may have which I should pay attention to. My agenda is to charge a 12V battery. Thank you in advance! All the best, Steve

A "simple" question before I even finish viewing the video: Can we do a practical mag-lev <thing> without using 3-phase? Seems everything I've viewed so far uses 3-phase for the propulsion aspect. Me, I'm OK with 2 phases that are 180º out of phase, creating double the voltage across the actives... but once we have 3 phases 120º out of phase... just obtaining it is insanely complex (assuming you don't have a 3P supply to your house), and understanding the math across the phases is worse. And that's before trying to work out current-lag, collapsing-field reverse current, hysteresis and all that crap. That's where I left my studies in electrical theory, many years ago. Listening to your "power supply", it sounds like an old-school mechanical rotary inverter, artificially inducing local 3-phase from a single-phase supply. They used small 'dynamotors' back in the 2WW, to produce 1 and 3 phase power from a 24V accumulator, so the concept isn't exactly cutting edge. I still HAVE one, that works, tho the efficiency is terrible. You see why I detest projects that require 3 phase energy of any voltage. Please tell me that there is another way to do these experiments that doesn't require 3 phase power?

You wound side by side other winding with specific pattern, just specific arrangements pattern of permanent magnet .so this kind of electromagnetic arrangements levitate required pice metal sheet hovering levitate and movies.

Так, ну вроде не сложно, нужно 2 раза потыкать в осциллограф и 1 во флип-чарт. || seems easeley - two times show finger to oscilloscope and one to the flipchart

Nice. Could you mention about coging if used for servo

I wish linear motors were sold online! I can only find linear actuators.

The stator is stationary while the rotor rotates.

Looking for this for a long time ... Thanks

Hello, this design measurement is inch or cm ?

Well done, Sir.

That’s not the optimal design, as laithwaite videos show linear motors with horizontal stability