It is also called a rotary electrical interface, commutator, collector, swivel or an electrical rotary joint. It can improve electromechanical capability, simplify system design, eliminate possible damage while rotation.
It’s the key apparatus of various precision rotary worktable, electric test instrument, manufacture and process control instrument.

The LPM-12K miniature slip ring is a standard, off-the-shelf unit that uses gold contacts at the rotary interface.

Color-coded lead wires are used on both the stator and rotor for simplifying electrical connections.

The LPM-12K allows tremendous flexibility in dealing with system size restrictions.

It is available in 1-12 circuit configurations.