Magnetic Pendulum
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- Опубліковано 21 тра 2018
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What an amazing circuit! Great for learning! Thank you very much for the schematic at the end and the component values. You are Very kind.
Your videos are great. Your circuit descriptions on how it works are easy to understand.
I am so happy that you take the time to actually describe verbally how to actual make the circuit you explain in detail how to make the circuit and project so thank you very much for that
Amazing, I love it. It really works . Once my pendulum start oscillating in a Perfect harmonic movement I was amazed. Thanks a lot
5:16 And there you go, pendulum becomes motor. lol
Probabely a brushless one
Basic of brushless motor.
Great idea of adding the cap.
Thanks for all the interesting videos. I used to sell battery powered pendulum clocks with that type setup but they ran off an AA battery, the pendulum was obviously just for looks.
Ludic , you have solved my problem of 20years, a night mare really! I accepted that the Baskaras wheel would never work, but always thought a magnetic nudge would help (garden sculpture using bicycle wheels in frames) I imagined magnets on the rim and now I need your input, John from Oz
Very Nice! It might not be the most efficient, but it works really well and is easy to build yourself!
Indeed that cool device is the basics for a brushless motor. It's all about timing and that cap/resistor = delayed discharge approach was most brilliant...
Thank you
very cheeky i love it Ludic. - you are a great engineer.
Thank you so much
Very nice pendulum! Great video:)
Fantastic project, informative also
Loved it. Thanks! Can you use thicker wire and fewer coils for the same amount of magnetism?
Nice project.
That capacitor takes hugh currentspikes and waistes energy while in fact short shortcircuits youre powersupply where that waiste appears as unnescesairy heat.
The way to apply such a delay is with a capacitor and a resistor and of course on the gateside from the mosfet. Between that reedrelais and the gate you have every oppertunity to add a delay on the moment (the fase) of the pulses (and even make the pulses with a length you choose) with little components in stead of that fat capacitor, thus little losses.
But it still is nice to watch this pendulum video!
I will try that!
How can I reach you Ludicrous? John
@@johnchisholm7350 what means "ludricous"? English is not my first language you see
You maybe mean e-mail? That's
robson24@live.nl
Great video, wondering if you could post the values of the resistors? Is it a simple voltage divider to drop gate voltage to half of the supply? Thanks!
I like it. You should try some fishing line with the neodymium attached for a pendulum. It would travel in different directions I think.
Curious, how many volts does that coil generate with just the magnet passing over it? Maybe 1 volt or 2? Thanks.
EXCELLENT, thanks.
You don't need a Reed switch or any other sensor to drive the magnetic pendulum. You can use the coil as sensor and actor of the circuit. As the magnet passes the coil it induces a voltage in one direction during approach to and in the other direction during detachment from the coil. A comparator can detect the detachment signal and trigger a pulse to push the magnet away from the coil. I have used a micro-power dual op amp as comparator and monostable multivibrator and a low power n-channel MOSFET as switch for the electro magnet. In case that it doesn't push you simply have to change the coil wires on the connectors and it works.
Alternative... Use a tungsten weight with a steel rod through it for your pendulum. Use the magnet to attract (accelerate) the rod until it is vertical. Then allow the magnetic field to collapse. You can recapture some of the energy from the coil in a capacitor to be use in another circuit.
I'm wondering about the pivot point in the middle so the coil can energize on both magnets to see how fast you can get it going. I love the simple concepts in your videos.
Thank you!
Very good, thanks!
Very nice video once again... I love your chanel very much..
😊
Hello, Thank you for this amazing post! I am completely new to this field and I wondered if someone could help me by telling exactly which elements to buy to be able to create a similar pendulum? Many thanks in advance!
Sir please update the list of components along with the specifications . It will easy to learn for us.
Simply a lot and corious circuit. It is great Diy for reply it whit my son. Thanks.
Nice. Thank you
you can build it with hallsensor and condensator , just 2parts also ... , the hallsensor have also a intern little transisot driver , i like all your videos
Thanks!
At last I have found you after 15 years of torment! Great video and now I want to spin a bicycle rim in a steel frame using your ideas. Any diagrams? John from Oz
Hi. I believe that You could make the same device in a simpler fashion. I have seen this kinetic desk toys that apparently use only a transistor, the solenoid (with works as magnetic switch or hall sensor) and a battery pack.
Would You kindly explain if such a configuration is possible and how the circuit should be assembled?
Thank You.
Congrats and best regards from México City!
Awesome video!
🎯 Key Takeaways for quick navigation:
00:19 *The magnetic pendulum consists of a metal rod with a brass axle and a coil made with magnet wire.*
01:34 *Timing is crucial to energize the coil when the magnet passes above it to give a push to the pendulum.*
02:53 *A capacitor is added in parallel with the coil to absorb energy initially, ensuring the coil pushes the magnet in the correct direction.*
05:52 *Disconnecting the capacitor leads to voltage spikes, which necessitates the use of a diode to prevent damaging the MOSFET.*
Made with HARPA AI
The mosfet gate threshold voltage is 2V. Can I change it to a BJT to make it work with lower voltage bateries?
Hi very good I test it working but coil is over heating about 65 degrees Celsius is there a calculation distance of Reed switch and pendulum length ?
Wow, this is great!
Amazing thanks . Can we replace coil with permanent magnet?
what are the materials that you use to make this electromagnetic pendulum??
Amazing content 👏👏👏👏👍👍
Can we use a transistor in place of mosfet?if yes ,please suggest one?
Very helpful for solenoid lick I want to make on my back door...
Great video
Very interesting project
Thanks!
Very Nice thankyou
Felicitari pentru sistem o aplicatie buna cred ca sti de la cine🎉
What do you think the magnetic strength of the coil was?
I was thinking scale it down and use the pulse circuit from a garden light ?
Thank you for sharing your ideas. Great work and circuitry!
I believe it can be used to charge a battery when the pendulum is turning 360 degrees by putting coils around and above the coil beneath the base so that when the magnet passes all the coils above it will generate electricity to charge the battery connected to the coils.
how many turns does the coil have? nice video btw!
What if you remove the resistor that is in series with the reed switch?
You think this can be used for giving wind turbine blades an extra push?
Can someone explain to me how to make the circuit? Thanks
It's intriguing to see the pendulum inherently want to speed up. Obviously, the speed at which the magnetic field is passing through the coil, generates more voltage for the cap to store. More zap from the cap...more magnetism in the coil upon discharge : ) Thanks Ludic !
No, that's not how it works. The way this is set up, it's the coil affecting the magnet (the one at the bottom of the pendulum) not the magnet affecting the coil - which is what you're apparently thinking is happening. Even if it was set up the other way, I don't think it would work the way you describe. I'm not sure why you think more voltage would be generated the faster the magnet passes by the coil. Since any voltage at all will only be generated while a coil and magnetic field are within proximity of each other, wouldn't that mean _less_ voltage generated as the pendulum gets going faster? I think so. Also, there's no such thing as "more zap from a cap" - as you put it. Capacitors discharge voltage after being sufficiently charged by a voltage source. They _only_ discharge when the amount of charge they're rated for is reached, and they'll _only_ discharge what has built up inside them. The charge they are rated for is predetermined (by the manufacturer) and fixed. In other words, the voltage coming out of a capacitor _is not_ variable. Caps are specifically utilized for this inherent property..
@@SineEyed you are wrong. The coil acts as a generator during the downward swing of the pendulum and produces more voltage as speed of swing increases, which charges the capacitor faster (and to a higher value of voltage) before being triggered back through the coil (now acting as a motor) with a greater amounted force, making the pendulum swing faster and the cycle repeats until ultimately the capacitor can not be charged / discharged any higher and maximum speed is reached.
@@expfcwintergreenv2.02 yeah nah... that is 100% *NOT* what is happening..
@@SineEyed 5 tau, brau
Damm that thing kicks
Interesting one.. At some point when pendulum made full rotations i was expecting the counter wait to fly away ☺
😂
Thanku😍
Can i supply 12v 2amp supply to this circuit
Here unable to see 2 register and diode which you are using in circuit diagram but I'm actual project this is not visible
Your videos are so intersting
I like your channel, thanks. Is the MOSFET really necessary or is the ReedRelais not capable of switching the relatively high current directly?
It is not capable
The reed relay will arc inside and fuse the terminals
@@ludicscience Hi and thanks for the video, I don't have the irfz44 mosfet. Unfortunately I don't have much material, are there other alternatives?
Divod kaha lagay konsi
nice job, well done 👍
I see the diode in the schematic but where is it in the picture? Thanks
May I buy this from you
I see a link buy i don't see the pendulum
why have the resistor from the base to the emitter?
is it work with a battery?
Don Manuel, revicé el mismo video en español, pero en sus comentarios de fabricación omite mostrar la ubicación del diodo 1N4007.Veo un diodo en la salida negativa del capacitar?
You can make a motor as well
Hallo wie dick ist der Draht und wieviel Windungen ?
(1) Why didn't you take advantage of the high impedance of the gate circuit of the mos fet ; using a small mylar capacitor
across the gate resistor to create a delay ?
(2) Why can't the reed switch be relocated to produce the delay ?
Also reed switch might power on in field of electromagnet. Why it's not on in this case?
Ohms per resistor?
Ciao. I don't have the irfz44 mosfet and i used the irfz44n, i guess it's not the same thing? The device does not work for me, what can I use as an alternative?
Is the same thing
That was fun.
Wouldn't it be easier to have the coil attract the magnet? That way you won't need a capacitor.
Also wouldn't an iron core in the coil THAT moves in and out which would since you are activating the coil already which would do that.
And you would need less volts if you moves the core slightly closer. ;)
I think attraction will have a similar effect, but will try anyway
Ludic Science hi. Can you please provide the material list and sizes of caps and resistor? Also the coil and where did you get it. Thanks.
5:32 pendulum decides to quit being a pendulum
did you try to use the electromagnet in the maximum H instead and not to need to use it permanently
Very interesting
Saudações LS Ludic Science. Muito bom. E é como eu sempre digo: o electromagnetismo move nosso mundo. Tudo de bom.
Obrigado
Olá. Tu merece.
Always interesting
Thanks
how many turns..
diameter of wire
Very nice video 👍😊😊😊😊😊
PLEASE MAKE A THREE PHASE LINEAR MOTOR
How do I buy parts in the advertised store, if you have not written what? Capacitor? Transistor? IRF 244 or maybe IRFZ44? Coil? How many coils does it have? What thickness of the wire? Mages? What strength? All of this is important to repeat the experiment. Can you provide this data or is it a secret?
No tienes videos en español?
wow!
As its good idea but voltage need to be decreased
Now have that pendulum turn a rotor to induce a current back into itself and see how long it can run itself! Or please correct me on how that wouldn't work lol
🌸29/nov/2021 from Nepal🇳🇵
*this is pulse motor*
u do not need copper. u sue polarity to spin the clock. Opposite of magnetic refraction is the push. period. just push in a secure area get gears right the u got it.
nice!
Thanks
super
5kg weat wark megnet pendyulam dayagram
9824107056
Is there a easy way to stop the pendulum from cycling 360 degrees with electronics only?
Just use less voltage
You could have put the reed contact just further from the coil... no need of capacitor...
are you sure????
@@ludicscience It's obvious: if you shift the reed enough on your right, it will turn on when the magnet is enough afterwards the center the coil.
@@ludicscience In my case, however, the pendulum will accomplish only an half stroke every time. If you want an entire stroke you must place the coil all at your left and the reed contact more left too.
In fact, your pendulum suffers of a bad position of the coil which must not be placed at the center of the pendulum but on one of its two sides... and you will not need a capacitor...
Only half a stroke is not a pendulum. You need a capacitor
@@ludicscience II part.
If you want maintain the coil at the center, you must put a second reed before the coil in an electrical series with the first one. So: when the magnet turns on the second reed the first one rests turned off and the coil is off. The magnet passes over the coil off, then it turns on the first reed while the second one is still turned on and the coil switches on, pushing the magnet. It will be only question of founding the perfect postition between the two reeds and the coil. This second solution avoids the capacitor too but gives a centered coil and a complete pendulum stroke.
cool man, thanks :)
Can't the diode be 1N4001 ? Since the voltage is 8~12 , and 1N4001 can handle up to 50 volts.
en.wikipedia.org/wiki/1N400x_general-purpose_diodes#Overview
Yes it can
Cool
Thanks!
احسنت🇰🇼
Super🌹🌹🌹.
Ic nem
Kepictor nem
ну и что ты дал людям, -пшик ?
дать людям то, что они хотят
@@ludicscience что-то я непонял , здесь маятник сам себя разгоняет ?
@@user-rt3sd7pr1w Да, катушка ускоряет это
@@ludicscience ...НЕУЖЕЛИ СВЕРХ ЕДИНИЦА ?!!!!!...ДРУЖИЩЕ ?!...