DC Motor Linear Translation Stages

DC motors are best characterized by their smooth motion and high speeds. They provide good efficiency and a high power/weight ratio. A brushed DC motor essentially consists of a rotor placed in a magnetic field, which causes rotation when current is applied to the motor windings. The rotational speed is proportional to the applied voltage, while the torque is proportional to the current. Precise closed-loop servo positioning and speed control is typically achieved with a shaft-mounted rotary encoder, and for ultra-precise positioning, a direct reading encoder on the drive train may be used. Note that unlike stepper motors, DC motors do not provide full torque when idle.

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