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The transparent dome can simply be lifted from the base (at normal pressure) and an o-ring is needed to seal it when the vacuum is on. The o-ring is simply placed in the groove for the dome with a bit of grease. If you can't find an o-ring of the right size, a belt from a tape player, printer, or record deck may do the trick.
You can also buy a low cost vacuum chamber and hand vacuum pump from our shop. it even includes a vacuum pressure meter.
Although this setup could not contain a hard vacuum, it is perfect for plasma experiments, and other tests. As with any homemade device, great care must be taken when using this vacuum chamber. This device could implode if care is not taken to limit the pressure level.
This
image shows the centre electrode of an asymmetrical dipole. This arrangement
allows particles to be accelerated to a central point from all directions
and is often used in experimental fusion rectors. Advance fusion reactors
use toroidal (dohnut shaped) vacuum chambers known as a Tokamak
Science
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| curious | Thursday, 13th July 2006 4:34am - No.96 |
| is the picture up top the same object as the picture on the bottom..if not ,what created the picture on the bottm | |
| RMCybernetics | Thursday, 13th July 2006 3:35pm - No.97 |
| The Plasma shown in the lower image was created inside the vacuum chamber pictured at the top of the page. The shape you see is due to the shape of the electrodes used. The purple glow in the lower image is surrounding the central elctrode of two of the same design. Each electrode consists of three wire rings places at rightangles to each other to form the roughly spherical shape you see. There is another electrode that is not shown in the image which is identical except that it is larger and surounds the glowing one. In the top photo you can just see the wire coming down from the top that would be used to connect the outer electrode to the power supply. | |
| sam bage | Sunday, 31st May 2009 9:16pm - No.3852 |
| hi there, i really want to get one of these vacuum kits but i have a small question. i just wanted to know how effective this is at pulling air. i dont expect it to reach the hight of 30" (full vacuum, 0" being normal pressure) but how high does it go? | |
| RMCybernetics | Wednesday, 3rd June 2009 5:44pm - No.3857 |
| They wont get close to 0 becasue the are just hand pumped and the dome is plastic. You would need a perfect seal, high strength chamber and a good vacuum pump running for several days to get near to 0. | |
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