Ads
related to: do stepper motors require encoderszoro.com has been visited by 100K+ users in the past month
Overall Customer Satisfaction 9.3 out of 10 - Bizrate.com
Search results
Results from the WOW.Com Content Network
A stepper motor, also known as step motor or stepping motor, [1] is a brushless DC electric motor that rotates in a series of small and discrete angular steps. [2] Stepper motors can be set to any given step position without needing a position sensor for feedback. The step position can be rapidly increased or decreased to create continuous ...
A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to analog or digital output signals. [1] There are two main types of rotary encoder: absolute and incremental. The output of an absolute encoder indicates the current shaft position, making it an angle ...
This can be used either to produce continuous rotation at a controlled speed or to move by a controlled angular amount. If the stepper is combined with either a position encoder or at least a single datum sensor at the zero position, it is possible to move the motor to any angular position and so to act as a rotary actuator.
If the motor was always assumed to perform each movement correctly, without positional feedback, it would be open-loop control. However, if there is a position encoder, or sensors to indicate the start or finish positions, then that is closed-loop control, such as in many inkjet printers. The drawback of open-loop control of steppers is that if ...
Replacing the manual control knob in the above manual worm drive scenario a stepper motor allows positioning of the rotary stage to be automated. A stepper motor rotates in fixed increments or steps. The number of steps moved is controlled by the stepper motor controller. In this sense, the stepper motor behaves much like an indexed control knob.
An incremental encoder does not keep track of, nor do its outputs indicate the current encoder position; it only reports incremental changes in position. [3] Consequently, to determine the encoder's position at any particular moment, it is necessary to provide external electronics which will "track" the position.
The first switched reluctance linear motor ideas date back to the 1970s. In 1973, inventors Hi D Chai and Joseph P Pawletko from International Business Machines Corp patent a "Variable reluctance linear stepper motor". Then a linear stepper motor of the variable reluctance type was for serial printer applications.
stepper motor An electric motor that moves its shafts in discrete steps as different poles are energized. stereophonic sound Sound reproduction systems intended to reproduce sound emanating from more than one direction. Stokes' theorem A theorem about integration of three-dimensional functions, much used in analysis of electric fields. storage tube
Ads
related to: do stepper motors require encoderszoro.com has been visited by 100K+ users in the past month
Overall Customer Satisfaction 9.3 out of 10 - Bizrate.com