1.2Installation Requirements

Amount of distortion

(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

A

C

 

B

 

 

 

C

 

A:

Whisker noise

 

B

 

 

 

Image shift

 

 

B:

(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)

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