EEE Project Report On Stepper Motor Control Through Rf Link: A stepper motor is an electromechanical device that converts electrical pulses into discrete mechanical movements. The shaft or spindle of a stepper motor rotates in discrete increments when electrical command pulses are applied in the correct order. The motors rotation has several direct relationships to these applied input pulses. The order of the applied pulses is directly related to the rotational direction of motor shaft rotation. The speed of the motor shafts rotation is directly related to frequency of input pulses and the length of the rotation is directly related to the number of input pulses.
Stepper motors operate differently as rotating brush DC motors, when the voltage applied to their terminals. Stepper motors effectively interlocked electromagnets around a central gear-shaped piece of iron away. An external control, such as a microcontroller pulls the magnet. To rotate the motor shaft, a first electromagnet given power, so that the gear’s teeth magnetically attracted to the electromagnet’s teeth. If the gear teeth so with the first electromagnet are aligned, they are slightly offset from the next electromagnet. When the next electromagnet is turned on and the first is switched off, the gear rotates slightly to align with the next, and from there the process is repeated. Each of these rotations is a slight step, with a whole series of steps, a full rotation. In this way, the engine can be rotated by an exact angle.
Conclusion:
The stepper motor to control the motion of a robot but the biggest hurdle is the wired control. We can control the stepper motor wirelessly through RF link. In this project we are controlling the stepper motor wirelessly through RF link. We are using RF module and AT89S52 microcontroller to achieve this motive. Following are the main components of this report RF Module, Microcontroller, Output mechanical transducer (stepper motor).
Download Electrical and Electronics Engineering EEE Final Year Project Report Stepper Motor Control Through Rf Link.