Hi everybody, I am working on a project and wanted to get some ideas and everyone here seems very helpful.
I am in the process of designing an observatory to house a fairly large telescope (20"), and I plan to make it usable remotely over the internet. The telescope itself already has remote control capability, and there will be a small PC inside of the structure itself to control various things. The observatory will be of the dome variety, 12' in diameter and 6' tall, with the dome rotating on 16 pairs of wheels. One (or possibly two) of these will be powered and used to rotate the dome. The upper part of the dome will house some electronics, the biggest power drain will be the motors which control the shutter for the dome, but there will also be some sensors, a wifi router, and a digital camera.
The issue I have run into is how to power all of these devices. The most popular way to do it I have found is to use a slip ring system. I thought maybe I could run two 1/8" copper pipes (Easily bent!) on the bottom of the dome ring, and then use some motor brushes connected to 110VAC to transfer power to the top, using maybe 10 sets of brushes to minimize skips in the power. I don't know if the voltage is going to make it spark though... I could use a transformer to drop the voltage down to 12VAC and then back up to 110VAC on the top, but I don't know if that would do the trick.
I am able to put some batteries on the top ring and some capacitors of course to help smooth things out, and using DC instead of AC is possible, as everything should run fine behind an inverter. I just KNOW that there must be a simple, easy to implement, and cheap design, but this just isn't my area of expertise.
Any help would be very much appreciated! Thanks guys!
-Bill Carlson
I am in the process of designing an observatory to house a fairly large telescope (20"), and I plan to make it usable remotely over the internet. The telescope itself already has remote control capability, and there will be a small PC inside of the structure itself to control various things. The observatory will be of the dome variety, 12' in diameter and 6' tall, with the dome rotating on 16 pairs of wheels. One (or possibly two) of these will be powered and used to rotate the dome. The upper part of the dome will house some electronics, the biggest power drain will be the motors which control the shutter for the dome, but there will also be some sensors, a wifi router, and a digital camera.
The issue I have run into is how to power all of these devices. The most popular way to do it I have found is to use a slip ring system. I thought maybe I could run two 1/8" copper pipes (Easily bent!) on the bottom of the dome ring, and then use some motor brushes connected to 110VAC to transfer power to the top, using maybe 10 sets of brushes to minimize skips in the power. I don't know if the voltage is going to make it spark though... I could use a transformer to drop the voltage down to 12VAC and then back up to 110VAC on the top, but I don't know if that would do the trick.
I am able to put some batteries on the top ring and some capacitors of course to help smooth things out, and using DC instead of AC is possible, as everything should run fine behind an inverter. I just KNOW that there must be a simple, easy to implement, and cheap design, but this just isn't my area of expertise.
Any help would be very much appreciated! Thanks guys!
-Bill Carlson