AC network interconnections AC transmission lines can interconnect only synchronized AC networks with the same frequency with limits on the allowable phase difference between the two ends of the line. Source: Internet
Each Decometer drove a second indicator that counted the number of lanes traversed each 360 degrees of phase difference was one lane traversed. Source: Internet
Driven by dual orthogonal vibration modes with a phase difference of 90°, the contact point between two surfaces vibrates in an elliptical path, producing a frictional force between the surfaces. Source: Internet
Also, when in lock, the steady-state phase difference at the inputs using this type of phase detector is near 90 degrees. Source: Internet
A phase difference is analogous to two athletes running around a race track at the same speed and direction but starting at different positions on the track. Source: Internet
A rotating magnetic field can be constructed using two orthogonal coils with 90 degrees phase difference in their AC currents. Source: Internet