Linear Motors | How do they work?

Рет қаралды 772,895

Күн бұрын

A motor called a linear motor is making quite an impact in packaging industries and CNC machines. When someone says "motor," the image that comes to mind is usually something spinning, right? However, packaging and CNC machines require motors with linear movement. In this video, we are going to learn about the working of these beautiful motors by understanding a crucial concept about linearly travelling magnetic fields.
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Пікірлер: 253

@shashikantsingh6555 2 жыл бұрын

I wish i earn enough money to show my support to this best educational channel for engineering... Thank you Lesics❤️

@darkorse9752 2 жыл бұрын

This channel has the best technology explanations on KZfaq.

@juliano_marmaruca 2 жыл бұрын

Good videos but sometimes the channel posts images about banning chinese apps and stuff.

@organicfarm5524 2 жыл бұрын

@@juliano_marmarucaisn't he Indian? Lol.

@brodriguez11000 2 жыл бұрын

There are others.

@battleroyale1760 2 жыл бұрын

@@juliano_marmaruca so what? Chinese ccp causing trouble to its neighbours like India, taiwan and slowly making colonies in Pakistan and srilanka by giving huge loans which these small countries can't return.

@Servotronix_motion_driver 2 ай бұрын

good job!

@markc2643 2 жыл бұрын

Technics CD players used a linear motor to drive the laser assembly which allowed extremely quick tracking. You could jump from track 1 to track 10 in about 1/10 of a second. Phillips used a similar motor that was curved instead of straight rotating around a pivot point. This video only talked about how a linear motor moves, and not how it is controlled to be held in a still position when the motion is stopped. (hint: it's not allowed to just rest.)

@aliveli8650 2 жыл бұрын

In order to change the direction of the movement, you need to switch only 2 phases. The phase change at 4:54 only adds 120 degree phase. It does not change the direction. Apart from that, great video for beginners. Congrats!!

@giovannibianchessi1578 2 жыл бұрын

Exactly

@Darkbob-ew1lk Жыл бұрын

Can this type of motor achive an static position? For the applications explained in the video I looks like they can but considering that the secondary works with eddy currents I'm not so sure

@delle12 11 ай бұрын

I came to the comments to say the exact same thing :D

@shauljonah6955 2 жыл бұрын

Love it even though it seems a bit confusing but knowing how it works counts and it's simply made and has low noise and stuff.

@colincavender9477 2 жыл бұрын

Great video as always. Axial and lateral loads are very useful as well depending on surface tensions and other factors.

@funnyboy3208 Жыл бұрын

Excellent explanation sir Thankyou❤️

@_Christopher_Williams 4 ай бұрын

These are great for pick and place applications where considerable torque is not required. I am a PLC technician, and I use these often. Easy to setup, and programming is a breeze using Ethernet IP. For higher torque applications, I use servos or steppers. The beauty of linear motors is the minimal amount of moving parts. Servos and steppers require actuators and drive systems (lead screws, belts, chains, etc.), therefore there is more maintenance, and potential failures. It's a balancing act of choice, depending on the application. Really love linear motors though!

@odometric5946 2 жыл бұрын

Very informative! Most machines that require linear motion use a "linear actuator" to achieve this motion, which has a rotary motor and a screw or belt mechanism to translate rotary motion to linear motion. I think the majority of linear motion uses the "linear actuator" and not the linear motor due to a cheaper upfront cost and ease of control for most applications. Would be cool to get my hands on one of these linear motors to try out.

@GeoffCostanza 2 жыл бұрын

I came to say the same thing!

@chunhaijiao2865 2 жыл бұрын

是的！

@escain 2 жыл бұрын

Also a question of power: an stepper-motor on a balls-screw allows for forces that would be impossible to achieve on a linear motor.

@johnlepkowski3831 2 жыл бұрын

Linear motors are becoming less expensive and more common place. Easy to use like a stepper motor because it’s a stepper motor.

@dreamgirl6346 2 жыл бұрын

Its was helpful for me..thank you

@akshatgangwar7759 2 жыл бұрын

I don't usually comment. Never bought any merch or Memberships, but definitely will become a Lesics member.

@suggesttwo 2 жыл бұрын

Radius motors are usually used for high power density applications because a spinning armature or stator preserves momentum.

@sephiroth0733 Жыл бұрын

concise and clear

@Panghal2017 2 жыл бұрын

Excellent presentation

@ajithkannan4818 2 жыл бұрын

This is pretty good presentation 💖👍.

@bobbyb9718 2 жыл бұрын

Interesting. This is the first I’ve seen a linear motor. Any equipment I’ve had exposure to used axial stepper motors with a cogged belt drive and track. This seems like a much better design.

@alberttyong 2 жыл бұрын

I'd say from first glance, the older cog belt drive and track is easier to replace parts, transport and maintain. It's also easier to adjust designs for than a rod that needs to be straight.

@bobbyb9718 2 жыл бұрын

@@alberttyong Those are good points.

@Brunleffe 2 жыл бұрын

I've also heard they often require liquid cooling and can be quite bulky. Requiring the form factor to be considered early in development. None the less, i can see a lot of future applications

@PowerScissor 2 жыл бұрын

They aren't all that useful for DIY stuff. You need to know exactly what it will be used for, as you will never change it's dimensions or gearing later.

@Panzerabwehr 6 ай бұрын

Depends how much money you want to spend on parts and repairs…

@sachinkumarupu Жыл бұрын

Awesome explained

@chowa3686 2 жыл бұрын

Thanks for sharing! This video is amazing! 👏👏👏👏👏👏🙏🙏🙏🙏🙏🙏🙏

@AntimatePcCustom 2 жыл бұрын

As a cnc operator i can say with confidence we do not use linear motors in cnc machines. 😂 There is a stepper motor with high torque and a screw attached.

@ammoniahuffers 2 жыл бұрын

Ah. This little guy beat me in the electrical engineer test! (Almost make my test fail cause there 4 questions about linear motors) And you explain to me!

@batman1169 2 жыл бұрын

That's too bad. Keep trying! I'm not even in engineering and found this so amazing to watch.

@ammoniahuffers 2 жыл бұрын

@@batman1169 I'm an electrician with 5 years in analog and 2 years in digital electronics now ;). That test was when I was 19 and started to learn expeerrrt electricity.

@organicfarm5524 2 жыл бұрын

@@ammoniahuffers I don't have a formal education/training/work experience in anything Electric except some stuffs related to installation of power and telecommunications lines/cables as I work in constructions. But pandemic has allowed me to learn almost all of electrical/mechanical engineering discipline covering areas of power, control, manufacturing, production, conditioning, instrumentation, telecommunications, computing, transportations, etc :)

@kiisofttech618 2 жыл бұрын

Thank you for sharing..

@joshuapitong899 2 жыл бұрын

Thank you so much.❤

@user-nw9gv4fc3h 8 ай бұрын

Can the rod be held at an arbitrary position within the motion range?

@Enezari-oussama 3 ай бұрын

Nice idea it describes concretely the the phenomenon inside the linear motor . basic for this technology is the regulating movement central magnetic field generator .to be mentioned,many ways to set such linear movement not only using repultion and attraction electromagnetics theories .

@dungtran3793 2 жыл бұрын

Great video. Thanks.

@chedruid 2 жыл бұрын

Great content, ty.

@bismayarath2604 Жыл бұрын

Best explanation

@HiAnonym 2 жыл бұрын

Grat video with great explanations! But I think you should've also said that this is a linear induction motor (LIM) because it works with induction and that there's also another method of building a linear motor: the linear synchronous motor (LSM). This type of motor uses a different method, it has permanent magnets on the secondary (the moving part of the motor) and those magnets are attracted and repelled by the magnetic fields of the primary (the non-moving part of the motor). This LSM concept has some important advantages to the LIM: it's way more efficient (uses way less power and produces less heat), it can go to a specific position way more accurately, in case of an E-Stop the coils can be shorted and the LSM acts as a brake (LIMs can't do this), and lastly, it can achieve way bigger accelerations, speeds and forces than the LIM.

@NoosaHeads 2 жыл бұрын

Can this LSM's secondary be a series of electromagnets (to permit high current and therefore high torque) and could the LSM also be a generator if an external reciprocating force were applied to the same equipment?

@HiAnonym 2 жыл бұрын

@@NoosaHeads I guess first would be technically possible, but is currently as far as I know not used (LSMs are mainly used for rollercoasters and there secondary can't really have any power electronics in it). However, your second idea is already in used on some rollercoasters as a brake which also gets the kinetic energy of the train back to electric energy and so it saves some electricity

@NoosaHeads 2 жыл бұрын

@@HiAnonym Thanks for getting back to me.

@HiAnonym 2 жыл бұрын

@@NoosaHeads No problem

@aicram62 2 жыл бұрын

So I'll ask here can this be used without a "track" can this propel a vehicle down the street?

@IdealForTechnical 2 жыл бұрын

So Nicely Explained 👌👌👌👌👌👌👌

@ashers_workshop Жыл бұрын

always such good videos!

@weapon-X007 2 жыл бұрын

Most useful channel

@dblaze4745 Жыл бұрын

Is very educational very good👍...

@rohitrahul1762 2 жыл бұрын

Quality content ..

@flymulticopter7929 4 ай бұрын

非常的视频，感谢感谢！

@DeDustMet 2 жыл бұрын

Really great!

@sakshitiwari3480 2 жыл бұрын

Thanks for this vdo 🙏🙏🙏🙏🙏

@irfanhussains1 2 жыл бұрын

Great video.

@sudeekshasudee7604 2 жыл бұрын

so in order to change the direction of the moment, always we have to change the terminals......is this done manually or automatically

@vipinchoudhary2787 2 жыл бұрын

Dear Sir, Your videos are very informative and supporting too much to those who are studying in engineering college or doing job in industry. This is best way to use KZfaq platform. Thanks you very much for informative videos. 🙏🙏🙏

@nonguyentan3406 2 жыл бұрын

What's the software which is used to make this video? Thank you.

@leejoey3287 9 ай бұрын

Linear Motor are also used on subway trains in China

@okhera1 2 жыл бұрын

Very Nice Bro! Get Good people!

@pp0193 2 жыл бұрын

Nice........I would also like to make educational videos like this..So please tell me which editing software should I use....

@kiranchoudhari4717 2 жыл бұрын

Excellent team lesics

@dhruvi.k432 2 жыл бұрын

Nice ❤❤ Excellent audience 👏👍👌 🥰🥰🥰

@toboncornell 2 жыл бұрын

How can I learn to use the software you use for this videos?

@SevenDeMagnus 2 жыл бұрын

Cool, thanks.

@OMNI_INFINITY Жыл бұрын

Thanks👍

@roshanr4085 2 жыл бұрын

Best ever explanation with animation 😍

@vadicstobbis2503 2 жыл бұрын

Thanks Lesic

@cabdifitaaxxuseenmuuse323 2 жыл бұрын

Please make machine operation series?🙏

@kapilanawarathne5746 2 жыл бұрын

great. ❤️👌

@dungtran3793 2 жыл бұрын

Could you tell me the name of software can made those video.

@GOOD_FARMER 2 жыл бұрын

I want to know how modern hydraulic steering system works which is frequently used in construction equipments and heavy vehicles .

@melosachin Жыл бұрын

Wonderfull

@basicsofelectricalengineer5666 2 жыл бұрын

Please make a video on PLC and SCADA in electrical engineering🙏🙏🙏

@al-amin.. 2 жыл бұрын

Brother, make a video about the sound proof room. How many ways can a room be made? How does this room work? What technology should do it This room? Etc. with information.

@aicram62 2 жыл бұрын

So this linear motor seems to work with a track can work without a track? Can it move a vehicle down the road?

@catchmypoint6756 2 жыл бұрын

Thanks for uploading this video i am a electrical engineer this video definitely give some knowledge to me

@USABESTMBA-COM 2 жыл бұрын

Nice video

@uchnoob 10 ай бұрын

Thanks

@robspiess 2 жыл бұрын

@4:27 - Doesn't the rapidly changing eddy current field in the aluminum block cause it to heat up?

@AwestrikeFearofGods 2 жыл бұрын

Any resistive non-superconductor will exhibit induction heating. However, the temperature increase will be negligible, assuming that a highly conductive metal is used, and time-averaged slip is low enough that induction heating from eddy currents is low.

@subhankarbanerjee1149 2 жыл бұрын

Thankyou Lesics, you prove that teaching science is an art.

@yishujia186 Жыл бұрын

Is this linear motor suitable for making two legged robot? Robots are mostly built with servo motors today.

@Blackoutfor10days 2 жыл бұрын

Can you make a video on how oxygen is produced in factories.

@kingEugene 2 жыл бұрын

Hello. How the animation like those in the video made?

@Kejtoo 2 жыл бұрын

Why the shaft is not getting extremaly hot? Is the shaft working also, as a electromagnet?

@ThinkSmartCreative 2 жыл бұрын

Nice

@gamergoohoo 10 ай бұрын

Are signals 90 degree 135 deg and 135 deg spaced out?

@JohnSmith-lf5xm 2 жыл бұрын

Hello, Is not a good idea to make the linear movement circular and have a sort of electrical rotational engine...??

@jingmhouze 2 жыл бұрын

Yes we call that an electric motor.

@techknowledgevishwa8931 2 жыл бұрын

Pls make a video on servo amplifier working. Your videos are fully understandable for me. Keep this working ☺️

@andersemanuel 2 жыл бұрын

0:12 sec in I really liked the rotating stator! ;) A question: - Is there a linear stepper motor? If not how would it work? Like an unrolled stepper motor? I really learn a lot from your lessons 👌

@jaihind9043 2 жыл бұрын

There are linear stepper motors and just as you mentioned... it is literally an unrolled stepper motor. These are usually used in places where high precision and fast motion is required as it can be microstepped like a stepper motor and... It does not have any backlash! even when changing directions!

@GeoffCostanza 2 жыл бұрын

You can also have linear position transducers (sensors) give feedback to your PLC

@rupalnag4440 2 жыл бұрын

This channel is haven for Engineers

@geliasr2562 2 жыл бұрын

Excellent video! But is it possible a two or just one phase coils building? I’ll google it..

@fikunmiajayi 2 жыл бұрын

2 phase - Yes Single Phase - Possibly but highly unlikely. I doubt Ferrari's principle works linearly

@EternityEditor 2 жыл бұрын

Can you please make a Vedio on how SSD works

@kebakent 2 жыл бұрын

I always assumed it was just a rotary motor gearing configuration.

@mrinalkarmakar4066 2 жыл бұрын

What differs a solenoid from a linear motor

@starlight7499 2 жыл бұрын

I am learning more from this channel than I did from 4 years expensive university.

@deeejayhype 2 жыл бұрын

Keep up the good work guys

@shivah.adhikari1763 2 жыл бұрын

Please make videos on the charging station.

@elift2001 2 жыл бұрын

nice

@Raven-lm7jp 11 ай бұрын

Best man best

@GrahamRounce Жыл бұрын

This was good, but unfortunately how the windings are arranged in the final thing was wrapped up in about half a second! Are there any diagrams etc that would show how to make one (assuming I have a 3-phase supply)?

@mize_yir_bizz Жыл бұрын

Look up Prof. Eric Laithwaite, he invented the Linear induction motor (LIM) back in 1950's. He's also considered the father of Maglev. I'll leave a link to one of his lectures "The Circle of Magnetism" (1968) - kzfaq.info/get/bejne/Ztp6mdR-vq7Fgas.html

@JoeBribem 2 жыл бұрын

So, is 3-phase power and switching the ONLY way to control directional changes with linear motors or is it just the most desirable because of 3-phase efficiency?

@poojapatil8904 2 жыл бұрын

Sir can you make a video on how camera works

@user-rx2rr5fd7f 2 жыл бұрын

أليس من الممكن استخدام فكرة الروافع الهيدروليكية بين موتور صغير وتوربين كبير والاستفادة من فائض الطاقه الكهربائيه

@Schwuanse 2 жыл бұрын

I love your Videos!!! Please create video on how MRI's work :)

@ludadoyt8317 2 жыл бұрын

Great video as honey:-)

@cabdifitaaxxuseenmuuse323 2 жыл бұрын

Will you make us lathe machine operation/ machine operation series? Please

@anasqai 2 жыл бұрын

If linear motor at front or back of bicycle like a jump support, or front or back of skateboard for the same reason?

@anasqai 2 жыл бұрын

If for balancing bicycle or motorcycle/bike? Even boat from toppling maybe? If below boat it can stay in same coordinate(like impossible becos of wave right?, Maybe it cancel the wave pushes?)?

@nelsonwani1098 Жыл бұрын

How can I get the product?

@supportengineeringbd4132 2 жыл бұрын

I am seeing and thinking why i found this explanation in late and also thinking about Japan railway technology..

@mize_yir_bizz Жыл бұрын

@2bikemikesguitartopics145 2 жыл бұрын

It is my understanding that aluminum will conduct electrical power but is not attracted by magnetics. Now if the block and rods were a specific carbon steel composition, I can see this working and be able to be tweaked based on mag field strength and the steel rod composition.

@shooter7a 2 жыл бұрын

It is an induction motor. The force does not come from magnetic field directly acting on a ferrous body. Go watch a video on how an induction motor works.

@madhavrabinbipin2116 Жыл бұрын

Anyone studying the basics of Traveling Wave Induction heater---The first place to come is this video

@mize_yir_bizz Жыл бұрын

@K-Effect 2 жыл бұрын

Are linear motors efficient, or do they still waste 80 to 90% of the energy into heat?

@DudeBoerGaming 2 жыл бұрын

Not just waste to heat but not all the coils produce work during the operation; so it is inefficient

@dahmanus2002 2 жыл бұрын

it's a good information, but this cnc machine needs, a 3D axes geographic map sensor to move exactly to any point of the projects like inkjet printers.

@organicfarm5524 2 жыл бұрын

Yes it's all about transducers, sensors, actuators, processors, etc in automation after all. Electrical Engineering 101;)

@psinha6502 2 жыл бұрын

do haptics device use the same motor

@mize_yir_bizz Жыл бұрын

@TechsScience 2 жыл бұрын

Is it possible to make single Phase linear motor?

@andersemanuel 2 жыл бұрын

As I understand it , All asynchronous motors are three phase. A motor running of single phase just uses a capacitor to offset two of the phases in the windings. I suppose a moving magnetic wave in a linear motor could be created the same way.

@mize_yir_bizz Жыл бұрын