Solenoid
A type of actuator whose conceptual construction is shown below. When the winding is energized by turning switch S on, a thrust force is generated on the iron rod, causing it to plunge (move into the winding hole). The rod is called a plunger. The plunger stops when it reaches the base. Normal solenoids are linear actuators, but the one shown below is a photograph of a rotary type.
Term List (S)
Salient-pole rotor/stator
Salient-pole torque
Sensorless drive
Separately-excited DC motor
Shaft, shapes of
Simulation
Sinusoidal voltage
Skew,Skewed slots
Slip ring
Slot liner
Slot-pole combination
Slotless rotor
Slots and teeth
Small electrical motor
Solenoid
Space factor, Slot fill factor
Speed control
Speed variation rate
Spindle motor
Squirrel cage rotor
Squirrel-cage induction motor
Stall torque
Starting torque
Sturgeon's motor
Switched reluctance motor
Switched reluctance motor, Early
Switching elements
Synchronous speed

