November 14, 2011

Linear Motors and Stepper Motors

A linear induction motor is made up of an inductor which is made of private cores with a concentrated polyphase. Linear motors can be directly supplanted for ball screw drives, hydraulic drives, pneumatic drives, or cam drives.

A linear induction motor is basically what is referred to by experts as a "rotating squirrel cage" induction motor. The discrepancy is that the motor is opened out flat. Instead of producing rotary torque from a cylindrical engine it produces linear force from a flat machine. The shape and the way it produces motion is changed, any way it is still the same as its cylindrical counterpart. There are no sharp parts, any way and most experts don't like that. It does have a silent carrying out and reduced maintenance as well as a ageement size, which appeals many engineers. There is also a universal business transaction that it has an ease of operate and installation. These are all foremost considerations when reasoning about what type of gismo you want to create. The linear induction motor thrusts ratio varies depending mainly on the size and rating. Speeds of the linear induction motor vary from zero to many meters per second. Speed can be controlled. Stopping, beginning and reversing are all easy. Linear induction motors are improving permanently and with improved control, lower life cycle cost, reduced maintenance and higher carrying out they are becoming the selection of the experts. Linear motors are easy to operate and easy to use. They have a fast response and high acceleration. Their speed is not dependant on experience conflict so it is easier to pick up speed quickly.

DC Motor Drive

dc motor driver

Stepper motors are a special kind of motor that moves in various steps. When one set of windings is energized the motor moves a step in one direction and when another set of windings is energized the motor moves a step in the other direction. The advantage of stepper motors that the position of the motor is "known". Zero position can be determined, if the traditional position is known.

Stepping motors come in a wide range of angular resolution and the coarsest motors typically turn 90 degrees per step. High resolution permanent magnet motors are only able to cope about 18 degrees less than that. With the right controller stepper motors can be run in half-steps, which is amazing.

The main complaint about the stepper motor is that it commonly draws more power than a standard Dc motor and maneuvering is also difficult.

Rotary Tables

Linear Motors and Stepper Motors

dc motor driver

Electric Motor Drives