This video will show examples of science fair projects you can build. Focus is on Vibration, and how it can cause machines to fail if not assembled properly.
PID or Fuzzy logic would be the best solution, but this project was for high school students so I kept it simple so they could play around with it. The code was written in Forth running at assembler speed which made it work. Here is the original video: ruclips.net/video/8uBy1EXELzg/видео.html
Years ago I did a similar diver in a 2 liter coke bottle. I used a glass eye dropper as the diver. If I remember correctly, if you varied the amount of water in the dropper one diver which was at the top of the bottle and sank when the bottle was squeezed (like you showed) and the other bottle had the diver on the bottom and it would float up when the bottle was squeezed.
Are you using a PID algorithm to control the levitation, or something simpler? (just curious, thanks)
PID or Fuzzy logic would be the best solution, but this project was for high school students so I kept it simple so they could play around with it. The code was written in Forth running at assembler speed which made it work.
Here is the original video: ruclips.net/video/8uBy1EXELzg/видео.html
Years ago I did a similar diver in a 2 liter coke bottle. I used a glass eye dropper as the diver. If I remember correctly, if you varied the amount of water in the dropper one diver which was at the top of the bottle and sank when the bottle was squeezed (like you showed) and the other bottle had the diver on the bottom and it would float up when the bottle was squeezed.
Pls consider making more videos about diy sensors
Can you Help me develop a 4 to 20 mA transmitter circuit for any sensor?
ruclips.net/video/8WGJiBvuNYw/видео.html
excellent
cool
Great video
Are step by step instructions somewhere?
The clips are from older videos I have made.
Great ingenuity! The vibration with the nut at the end of the video is really impressive!
Very cool .. all of them! Would there be a away to have the rotating nut reverse direction??
It looked as though it first moves downwards at a lower frequency.
Yes... you are correct. The nut will reverse at a lower frequency.
Very cool Ken. All science teachers should be as good as you! :)
That vibration setup is super cool! How do you figure out the resonant frequency?
By the sound of it, you just tune it up and down manually until you see the movement you want.
Slowly increase the speed of the motor ( using PWM ) until you hit the "sweet spot"