The Toyota Prius uses these currents during braking to recharge the battery. That is an electrical generator. ... This is also called magnetic damping and is why the disk is pulled along with the magnet in this video. The old mechanical auto speedometers used this. A conductive cup that can rotate was attached to the pointer and had a spring pulling it back to zero. A magnet was spun from the drive shaft and sat in the cup. As the magnet spun, this dragged the cup along with it, against the spring. The faster the drive shaft and magnet spun, the more drag there was and the more force on the spring, moving the pointer up the scale. Cheers, ScienceAdvisorSteve
Russ, I don't know how far you got using this as a load. While designing a half-horse DC Brushless motor, I used another motor as a generator and mechanical load similar to what you talk about here. I had to dump the power from the generator into a resistor bank. When you use it as a load, if you can figure out a way to measure the torque on the housing, that and the RPM allows you to measure the mechanical power being delivered to this load. I was able to use an arm and weight against gravity to measure the torque on the generator housing. ... P.S. The old mechanical auto speedometers used this. A conductive cup that can rotate was attached to the pointer and had a spring pulling it back to zero. A magnet was spun from the drive shaft and sat in the cup. As the magnet spun, this dragged the cup along with it, against the spring. The faster the drive shaft and magnet spun, the more drag there was on the cup and the more force on the spring, moving the pointer up the scale. Cheers
People use similar systems for braking of rotary machines. Climbing fall harness gizmos that slow you down if falling from high using Eddy currents on a drum line as one example. Inexpensive, zero friction, next to no maintenance required simple and efficient. Eddy currents are awesome when applied for braking heating and regenerative energy capture.
I had a workout frame that allowed you to place a 10 speed bicycle on it and pedal in the house as you watched TV. It too used the same concept plus the unit had an offset adjustment so you could get more resistance. I purchased that unit almost 25 years ago and I'm sure that design it has been around for a long time. Mine didn't use any coils. It actually used an aluminum disc sandwiched between magnets and the eddy currents were in the disc. It was a very cool design.
Cool. I never thought to take one of these apart, even though I see heaps of them on the side of the road.I will now - some useful stuff there! Thanks for sharing :)
I have one we dont' use in the garage....if anything i'd love to use that wheel to setup a PMG. Congrats on the baby Russ....my wife is due in around 3 weeks as well with our first. It's a boy! Look forward to seeing what you have in store for next week. Keep up the good work. Ken Revolution-Green(.)com
It can be used for nondestructive metal testing: "...Eddy current crack testing is performed as a “dynamic” test where an eddy current coil must pass over the area under test. When there is a crack or flaw in the component, the eddy currents move around the anomaly which is detected by the eddy current instrument..." NDT
Eddy currents have an application you may not be aware off: Powering bicycle lights. There are lights powered by a dynamo which power supply comes from the rim eddy currents. The big advantage over traditional dynamos is no physical friction between dynamo and rim, which results in less rolling resistance. Example: www.magniclight.com/en/
Just use that bad boy for its intended use! Be your own basement heater! IT's a great assembly to take advantage of, but it may not be rated for much more than 1kW. An elliptical machine doesn't really allow for high output workouts (like bike sprinting/rowing), so this thing is either way overbuilt or not really up the the task of any small generator. If you manage to calibrate it, a nice test bank for smaller stuff like stirling engines and whathaveyou.
i bought an eclipse from the manufacturer about 15 years ago and it cost me $800.00!!!!!! When I was 18 used to use it at the gym alot and bought one it does the trick but what a waste of money maybe I can make something to get my money's worth out of it now sitting out in the garage for 10 years lol....
Hey do you think that could be good for braking also ? Imagine if they change the brake system on cars with that method, no more friction, dust(pollution), and heat and waste of materials...
yes and no, at some point the device would not stop you completely as you need some moment to create the eddy currents.... on a side note, most electric cars use this principle in whats called "re genitive breaking" and it can be used to charge the battery... turns the motor in to a generator. ~Russ
rwg42985 Yes, you're right, I didn't think it through. OK, so a combination of a traditional brake and a frictionless brake would need to coexist. Weight would become a factor although I suspect you would need a smaller brake pad in this case if you activate the pad once the magnetic brake ceases to be effective. I am starting to see the complications...
good morning, nice, my wife is it homebirth midwife if you need any information? raw chocolate, flaxseed hempseed and yoga all seem to help quite a bit, good luck
Bound4Earth You are either invested in the oil industry, related to the Bush's or don't care at all about our children's future. What is the harm in someone spending their hard earned money to experiment in their own garage?? You may also be one of those people that not only will never invent anything or when it is invented will never know how it works. You could always watch other videos like 'how to refine oil. I also may never invent anything but, it gives me something to tinker with on my down time and my son enjoys it as well. I've just always been fascinated with life..outside the box.
![Lp. Сердце Вселенной #1 НАЧАЛО ПУТЕШЕСТВИЯ [Новый сезон] • Майнкрафт](http://i.ytimg.com/vi/380Q7gLWGvk/mqdefault.jpg)
The Toyota Prius uses these currents during braking to recharge the battery. That is an electrical generator.
...
This is also called magnetic damping and is why the disk is pulled along with the magnet in this video. The old mechanical auto speedometers used this. A conductive cup that can rotate was attached to the pointer and had a spring pulling it back to zero. A magnet was spun from the drive shaft and sat in the cup. As the magnet spun, this dragged the cup along with it, against the spring. The faster the drive shaft and magnet spun, the more drag there was and the more force on the spring, moving the pointer up the scale.
Cheers, ScienceAdvisorSteve
Russ,
I don't know how far you got using this as a load. While designing a half-horse DC Brushless motor, I used another motor as a generator and mechanical load similar to what you talk about here. I had to dump the power from the generator into a resistor bank. When you use it as a load, if you can figure out a way to measure the torque on the housing, that and the RPM allows you to measure the mechanical power being delivered to this load. I was able to use an arm and weight against gravity to measure the torque on the generator housing.
...
P.S. The old mechanical auto speedometers used this. A conductive cup that can rotate was attached to the pointer and had a spring pulling it back to zero. A magnet was spun from the drive shaft and sat in the cup. As the magnet spun, this dragged the cup along with it, against the spring. The faster the drive shaft and magnet spun, the more drag there was on the cup and the more force on the spring, moving the pointer up the scale.
Cheers
People use similar systems for braking of rotary machines. Climbing fall harness gizmos that slow you down if falling from high using Eddy currents on a drum line as one example. Inexpensive, zero friction, next to no maintenance required simple and efficient. Eddy currents are awesome when applied for braking heating and regenerative energy capture.
Russ, Congrats to you and the Mrs. on the impending joyous event! (She's doing all the "heavy lifting.")
Miracles surround us.
I had a workout frame that allowed you to place a 10 speed bicycle on it and pedal in the house as you watched TV. It too used the same concept plus the unit had an offset adjustment so you could get more resistance. I purchased that unit almost 25 years ago and I'm sure that design it has been around for a long time. Mine didn't use any coils. It actually used an aluminum disc sandwiched between magnets and the eddy currents were in the disc. It was a very cool design.
Cool. I never thought to take one of these apart, even though I see heaps of them on the side of the road.I will now - some useful stuff there!
Thanks for sharing :)
I have one we dont' use in the garage....if anything i'd love to use that wheel to setup a PMG. Congrats on the baby Russ....my wife is due in around 3 weeks as well with our first. It's a boy! Look forward to seeing what you have in store for next week. Keep up the good work.
Ken
Revolution-Green(.)com
That's how I "throw" stuff away as well lol.
Just take it all apart then stuff it back in the garage. 😁
As U27 said-i see a pulse motor there-and with the 3rd pulse motor build off comeing up,you have a good start.
Congratz Russ to you and your wife, hope all goes well...Chris
for it, you needs to invert it, setup the magnets in the wheel, and fixed winding outside the wheel.
It can be used for nondestructive metal testing: "...Eddy current crack testing is performed as a “dynamic” test where an eddy current coil must pass over the area under test. When there is a crack or flaw in the component, the eddy currents move around the anomaly which is detected by the eddy current instrument..." NDT
you find such cool stuff! im so glad its yardsale season and i can go picking!
yeah that is fascinating-i have one of those cross trainer contraptions,and i often wondered how the load was applied
Great find russ, Im sure it could be use for many many things to come thanks for the share ..
Can't help but think of the seg stuff, great find
Eddy currents have an application you may not be aware off: Powering bicycle lights. There are lights powered by a dynamo which power supply comes from the rim eddy currents. The big advantage over traditional dynamos is no physical friction between dynamo and rim, which results in less rolling resistance. Example: www.magniclight.com/en/
That is very interesting, I think I'll keep one if one should come my way. cheers
I heard that some roller coasters use this technology as breaks.
Rail is aluminium and breaks are BIG neodymium magnets.
That copper will heat up.
I am wondering how hot the copper wheel can go after something like 30 minutes of training on this machine.
thanks for posting , cool find
Just use that bad boy for its intended use! Be your own basement heater!
IT's a great assembly to take advantage of, but it may not be rated for much more than 1kW. An elliptical machine doesn't really allow for high output workouts (like bike sprinting/rowing), so this thing is either way overbuilt or not really up the the task of any small generator. If you manage to calibrate it, a nice test bank for smaller stuff like stirling engines and whathaveyou.
Cool, great info thanks Russ!
i bought an eclipse from the manufacturer about 15 years ago and it cost me $800.00!!!!!! When I was 18 used to use it at the gym alot and bought one it does the trick but what a waste of money maybe I can make something to get my money's worth out of it now sitting out in the garage for 10 years lol....
Hey do you think that could be good for braking also ? Imagine if they change the brake system on cars with that method, no more friction, dust(pollution), and heat and waste of materials...
Ol1VI3R if it was that easy, we would be doing it already
look up telma brake
Used on fairground rides to slow down the rides
Cool
Awesome buddy I needed something to do load testing on the free energy bike I am working on. How does it work with coils to regenerate power?
Magnetic breaking:
The assembly is great for a human power source for any project.
If you do scrap it - cut that copper off and sell it separately :-)
Would removing some of the magnets reduce the current/drag?
Yes
shoes!....good work Russ:-)
thank u for the awesome videos
Were the magnets iron or neodymium?
How's the baby?
use it for impedance on a john bedini circuit?
Neato
so in theory, your elliptical machine could charge itself while you use it. lol
Could you design a frictionless brake system in cars which utilizes Lenz law/Eddy currents? You would never have to change brake pads...
yes and no, at some point the device would not stop you completely as you need some moment to create the eddy currents.... on a side note, most electric cars use this principle in whats called "re genitive breaking" and it can be used to charge the battery... turns the motor in to a generator. ~Russ
rwg42985 Yes, you're right, I didn't think it through. OK, so a combination of a traditional brake and a frictionless brake would need to coexist. Weight would become a factor although I suspect you would need a smaller brake pad in this case if you activate the pad once the magnetic brake ceases to be effective. I am starting to see the complications...
Cute elf shoes.
Cool Beans Russ
Make a pulse motor with it!
good morning, nice, my wife is it homebirth midwife if you need any information? raw chocolate, flaxseed hempseed and yoga all seem to help quite a bit, good luck
look like eoin morgan
why not just change the battery clean it up and sell it....
Ya bud and if you click those witch heels together that hat will turn into a sack of balls you can lick. Look up "dyno rated at 10,000 horse power"
I want your shoes man!
krusty the clown shoes return it please!!!
a power drill anyone..?
How ignorant is the free energy movement. This concept is quite old and has been in use much longer then workout equipment.
Bound4Earth You are either invested in the oil industry, related to the Bush's or don't care at all about our children's future. What is the harm in someone spending their hard earned money to experiment in their own garage?? You may also be one of those people that not only will never invent anything or when it is invented will never know how it works. You could always watch other videos like 'how to refine oil. I also may never invent anything but, it gives me something to tinker with on my down time and my son enjoys it as well. I've just always been fascinated with life..outside the box.
I am in. Gdr.org
Thats pretty cool. Lot of intresting things you can do with that. Bet your wife is so impessed...um...NOT!
Between the hat and the pointy shoes It's a little hard to take him seriously !