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Stepper motors,
highly precise, digitally controlled motors, which are able to
provide reliable operation without using detectors to sense or
indicate position. The operation of t he
motor is controlled through electrical pulses. The direction of
current flowing through the windings of the motor is switched
with each pulse. The electrical pulse is converted into shaft
rotation in steps of a fixed angle. Together with the driver, it
constitutes an open loop controlling system, which is of low
cost and simple to construct.
Stepper motors are widely being used in many types of digitally
controlled motion control applications, such as printers,
intelligent (performance) stage lighting, office, bank and
industrial equipment, medical, packaging, textile, aerospace,
robotics and automotive. |