Variable Reluctance Motors Animated
Appendix to Stepping Motors Types by
Douglas W. Jones
Here is Figure 1.1 in animated form:
In looking at this figure, note the following:
- The field appears to rotate counterclockwise while the rotor rotates
clockwise. This arrangement is common with variable reluctance motors.
- The field rotates in steps of 60 degrees while the rotor moves in 30
degree steps (in the opposite direction). This is reminicent of the
motion of the scale of a vernier caliper, and for this reason,
variable reluctance motors are sometimes known as vernier motors.
- It takes four complete cycles of the control system to rotate the motor
rotor through one cycle. This is because the rotor has 4 poles!