Rotorbaserte

Rotorbaserte is a Norwegian term used to describe systems or technologies that rely on rotors as their central moving parts. The concept encompasses devices where rotating discs, wheels, or shafts form the core mechanism by which energy is transformed, information is processed, or motion is produced.

Historically, rotor-based (rotorbaserte) encryption refers to cipher devices such as the Enigma machine, which used a set of rotors to perform substitutions that change with each keypress. Rotor-based machines represented a class of mechanical cipher systems that predated electronic computers.

In engineering, rotor-based design refers to elements such as electric motors and generators with rotors that rotate within stators, as well as turbines and helicopters where rotating blades (rotors) generate lift or propulsion. Rotor basing is common in aerospace and energy sectors, with efficiency and wear governed by rotor dynamics and balancing.

In contemporary usage, the term is often applied to describe both legacy equipment and modern subsystems that still rely on rotating components. The specific meaning depends on the field, and accompanying qualifiers (for example electric, cryptographic or aero) clarify the context.

Related concepts include rotor machines, rotorcraft, rotary encoders, and rotary transformers.