Can a gyroscope be used to stabilize a levitating globe?

[sagitta]

Hello,

I am a student and this semester I am doing a project in Experimental Physics class. We plan to make a levitating globe! We have already researched on methods of overcoming Earnshaw's theorem and chose two:

1) Using eddy currents to stabilize an object (conductor)
More or less simple design, but requires too much voltage.
2) Using a feedback circuit to control the strength of the electromagnet.
We have already found some SOP and will research more and figure out by ourselves. This 2nd method is currently chosen as the main one.

But I have been thinking about levitrons and how they use gyroscopic motion to create the equilibrium point... Usually it requires a spinning top, which is not convenient since we need to have a globe. But I was thinking about gyroscopes and this idea fascinates me.

Is it possible to somehow install a gyroscope inside the globe to stabilize the levitation? Is there sort of a gyroscope that doesn't need to be spinned beforehand like spinning tops?

 

[mfb]

- Spinning magnets as support should be possible
- A spinning interior for a static globe... I think that needs an additional motor in the globe, and it sounds tricky to balance.

 

[sagitta]

Spinning magnets? By "support" you mean as a base or the globe?.. Because I think the globe is supposed to be static...
I guess we'll stick to the feedback systems, they require some soldering and more calculations but seem to provide more stability.

Thank you for the reply!

 

[mfb]

The base, which allows levitation of the globe.

 

[PJC01]

Hello,

That is a very interesting project you are working on! I can provide some insight on the use of a gyroscope for stabilizing a levitating globe.

Firstly, let's understand what a gyroscope is. A gyroscope is a device that uses the principles of angular momentum to maintain its orientation in space. It consists of a spinning rotor, which is mounted on a set of gimbals, allowing it to rotate freely in any direction. This spinning motion creates a gyroscopic effect which helps in maintaining the orientation of the gyroscope.

Now, coming to the use of a gyroscope for stabilizing a levitating globe, it is definitely possible in theory. However, there are a few factors that need to be considered.

One of the main challenges would be to find a suitable gyroscope that can fit inside the globe and also produce enough gyroscopic effect to stabilize the levitation. The size and weight of the gyroscope would also need to be taken into account, as it can affect the balance of the levitation.

Another factor to consider is the power source for the gyroscope. As you mentioned, using eddy currents or a feedback circuit can require high voltage, which may not be feasible for a small gyroscope inside the globe. It would be important to find a power source that is both efficient and safe.

Additionally, the placement and orientation of the gyroscope within the globe would also play a crucial role in stabilizing the levitation. It would require precise positioning and calibration to achieve the desired effect.

In conclusion, while it is possible to use a gyroscope to stabilize a levitating globe, it would require careful consideration and experimentation to find the right design and setup. I wish you all the best for your project and look forward to hearing about your findings.