Fluke 76-908 - Manual (Page 25)

Operation
Tests with Uniformity and Linearity (UAL) Phantom
2
2-15
Figure 2-12 is an image of the signal bubble for quadrature error. If there were any quadrature phase
error, another ghost circle would be visible in the lower right-hand corner of the image. Quadrature error
has become less common in most of the recent MRI systems.
Figure 2-12