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What are the application of stepper motor?
The stepper motor is used for precise positioning with a motor, such as hard disk drives, robotics, antennas, telescopes, and some toys. Stepper motors cannot run at high speeds, but have a high holding torque.
What are the two names of the rotating part of a stepper motor?
Stepper motor basics – How does a stepper motor work? As in the case of any other motors, a stepper motor has a rotating part which is aptly called a rotor and a static part termed stator. The stator and rotor have magnetic poles and by energising the stator poles, the rotor moves in order to align with the stator.
How is the step angle of a stepper motor determined?
The basic step angle of 5-phase stepper motors is 0.72° and 1.8° for 2-phase stepper motors. The rotating speed of the stepper motor is determined by the speed of the pulse frequency (Hz) given to the driver, and it is possible to freely change the motor rotation by simply changing the number of input pulses or frequencies to the driver.
How many revolutions does a stepper motor have?
The number of steps per revolution ranges from 4 to 400. Commonly available step counts are 24, 48 and 200. Resolution is often expressed as degrees per step. A 1.8° motor is the same as a 200 step/revolution motor.
What is the accuracy of an oriental stepper motor?
ORIENTAL MOTOR’s standard stepper motors have an accuracy of ± 3 arc minutes (0.05°). The remarkable feature of steps motors, though, is that this error does not accumulate from step to step. When a standard stepper motor travels one step it will go 1.8° ± 0.05°.
Do you need a sensor for a stepper motor?
Because it is possible to perform accurate positioning and position control while synchronizing with the number of command pulses and speed, there is no need for devices, such as a sensor, for positioning. Therefore, the entire system is simple to build.