Slip-ring functions to allow the transfer of electrical information and power between a rotating device and external components. They are used in helical CT and MRI scanners among other applications; in this setting, they allow image acquisition without progressive twisting of cables as the scanner rotates
A rotating circular conductor as opposed to a nonrotating conductive metallic strip to allow a complete circuit to be maintained despite device rotation.
Specific functions of slip rings include:
- transferring high voltage to power the rotating device
- transferring information to the rotating device (for example from a CT control room to the CT scanner)
- transferring information from the rotating device (for example from a CT detector array)
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