step motors [Edit]
main article: Stepper motor
.Step motor using rotor made of mild steel with the coil แอ็คที quality as shown in 'A' แอ็คที coil up is likely to be based on the rotor to move. In the 'B' another set of coils have a flowing stream, which creates a torque and rotation
.Motor, step motor is one kind of commonly used to spin. The rotor of the motor, step consists of permanent magnets.Step motors may be thought as a hybrid between the electric motor DC coil and rotate while each coil is energized to respectively. The rotor will put itself in the magnetic field produced by the field coil. Different from.The motor will not rotate continuously;It's "step step by step" is rotated and stopped. From one position to another position one according to the field coils that are paid the power and stop paying power respectively. The rotor can rotate forward or backward), and it may change the direction, stop sooner orAt any time!
.The drive motors, step simple will pay power or stop paying the power to coil to field one shot to the rotor to stop at any position. Drivers are more complicated. Control power supply field coil proportional.The rotation is going very smoothly. The mode this style is often referred to microstepping step motor controlled by computer is one of the most diverse styles of system positioning. Especially.
.Step motor can rotate at specific angles with step discontinuity easily, and so on. Step motors are used to position the read / write head in the floppy diskette of the computer.For accuracy and speed, sufficient for the correct positioning of Read / write head of the hard disk drive. When the drive is the density of the data increases, the limitations of the accuracy and the speed of the step motor, fightersHard disk drives use voice coil drive head ("voice coil" mean structure in speakers (cone types) in general. This structure is used to position the read head for a little while. The drive coil is on modern pivot rotation.Like the blade of the fan rotating.However, just like the voice coil actuator coil conductor modern The (magnetic wire) moving perpendicular to the magnetic field lines)
.Step motors are often used in computer printers, scanners and light engine was copier digital print head (of dot matrix and inkjet printer and paper feed roller) Similarly, many of the computer plotters1990 has been replaced with a large inkjet and laser printers) used motors, step a rota RI for pen and roller;General motors, step choice are both linear or servomotors with analog control system closed loop
.What is called quartz analog watch consists of step motors with a small plain. The coil one consumes very little and rotor permanent magnets.Some of these, such as, chronographs clockThere are more than one step motors
, closely related to design AC three phase synchronous motor, step motors and motor SRMs are classified as a kind of the main instances adjusted.Step motors is often used in computer printers, scanners and computer numerical control (CNC), machinery, such as star apple. The plasma cutting and CNC lathe.
การแปล กรุณารอสักครู่..
