How do machines like MRI that use large freely rotating pieces with sensors and tools attached deliver power and send/recieve data, I don’t think they would have miles of cables on a spool thats ready to be wound back and forth?
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Electric contact pads, they aren’t as efficient as a cable but they work well.
In the inside there is a pad with a wire attached to it and the same on the outside, these pads are touching but not glued or soldered.
First generations of CT scanners (think 1980s) were actually using cables. They were doing 400 degree rotation (clockwise 20deg to get up to speed, 360 to scan, 20 to slow down and then same sequence counter clockwise) but slip rings have replaced them long ago.
First generations of CT scanners (think 1980s) were actually using cables. They were doing 400 degree rotation (clockwise 20deg to get up to speed, 360 to scan, 20 to slow down and then same sequence counter clockwise) but slip rings have replaced them long ago.
it is also worth noting that the helium makes it so there is virtually no friction, so not a lot of energy is used to spin the magnet.
First generations of CT scanners (think 1980s) were actually using cables. They were doing 400 degree rotation (clockwise 20deg to get up to speed, 360 to scan, 20 to slow down and then same sequence counter clockwise) but slip rings have replaced them long ago.
it is also worth noting that the helium makes it so there is virtually no friction, so not a lot of energy is used to spin the magnet.
it is also worth noting that the helium makes it so there is virtually no friction, so not a lot of energy is used to spin the magnet.
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