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1.2 Installation Requirements
1 - 8
(a) Image expansion/contraction (b) Image distortion
Fig. 1.2-1 Effect of Stray Magnetic Field Component Synchronous with Power
Frequency (AC magnetic field)
(a) Appearance of image disturbance (b) DC magnetic field variation
Fig. 1.2-2 Effect of Stray Magnetic Field Component Asynchronous with Power
Frequency (DC magnetic field variation)
Amount of
distortion
A: Whisker noise
B: Image shift
A
B
C
A
C
B