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armature

armature

1 8.1
A coil of wire inside a motor or generator that makes electricity when it turns in a magnetic field
  • noun
  • /ˈɑːrmətʃər/
  • Specialized
translation icon : armadura
  • In the design of the generator, the engineers focused on improving the efficiency of the armature coils.
  • armature winding
  • armature technology

Examples

  • The technician replaced the damaged armature in the electric motor to ensure it functioned properly.

  • The relay armature is attracted, and the relay contact breaks.

    Academic text (1992)
  • But for this, I think that the armature wire here is is my deal.

  • So the armature wire is the next stage in this.

  • The armature then returns to the normal position, closing the contact.

    Academic text (1992)
  • As torque is generated over a limited angle of rotation, the torque remains relatively constant as the armature rotates.

    Academic text (1993)
  • The armature's winding produces a pure sinusoidal back EMF waveform.

    Academic text (1996)
  • As the coil turns within the magnetic field, the armature generates the voltage needed to power the device.

Synonyms

rotor coil
vsarmature
  • Specialized
6.3

Coiled wire on the motor's rotating part that carries electric current and makes it turn

is the part where voltage is induced by motion and can be nonrotating

Surface Forms

armature singular
armatures plural

Etymology

Armature comes from an old word armatura meaning 'armor' or 'equipment', the same root as armor. In a motor or generator, the armature is the part 'equipped' to do the work — it holds the wire coils that make electricity, so it is the working core of the machine.