Individual work #3 What stepper motor has to offer in the field of engineering?

Explain briefly about linear stepper motor.

Linear stepper motors convert the pulse command directly into linear displacement. Linear stepper motors convert rotational motion into translational motion. The principle of operation of a linear stepper motor does not differ from a stepper motor, the only exception is that instead of a torque, a force F is created directed in the plane of the rotor.

12. 
    A step motor has 130 steps per revolution. Find the input digital pulse rate that produces continuous rotation at a speed of 10.5 revolutions/ sec.
    

360/2.77 = 130
130*10.5 = 1365 steps

13. 
    Explain the operation principles of a Brushless DC motor.
    

The operation of a brushless electric motor is based on electric drives that create a magnetic rotating field. A brushless DC motor with permanent magnets is found mainly in devices with a power within 5 kW. A brushless DC motor is very similar to a DC motor with permanent magnets, has no brushes to replace or wear due to collector sparking. In such a motor, the magnetic field of the rotor is a permanent magnet that is always synchronized with the stator field. The role of a mechanical switchboard is performed by an electrical converter. It consists of fixed windings and rotating magnets.

14. 
    Named three types of direct drive actuator.
    

Hydraulic drive.
Electric drive
Pneumatic drive

15. 
    Explain how solenoid actuator works.
    

The role of the active medium is performed by the magnetic flux. When a voltage is applied to the solenoid, an electric current arises in the conductor, and a magnetic field arises around the conductor. (the coil of the solenoid inductor is an insulated conductor in the form of a spiral.)
Another part of the electromagnetic drive is a movable magnetic core, which, under the influence of a magnetic field, moves relative to the cavity of the coil. Moving, the core moves the shut-off or regulating element connected to it. In this way, electrical energy is converted into mechanical energy.
When the tension disappears, under the action of the elastic forces of the return spring, the core returns to its original position. Normally-closed in "Closed" , "Normally-open" in "open".

16.