
Chapter 1 Safety
1-15
Avoiding Electromagnetic Interference
Typical interference on Ultrasound Imaging Systems varies depending on Electromagnetic phenomena.
Please refer to following table:
Imaging Mode ESD
1
RF
2
Power Line
3
2D or 3D
Change of operating
mode, system
settings, or system
reset.
Brief ashes in the
displayed or recorded
image.
For sector imaging probes,
white radial bands or ashes
in the centerlines of the
image.
For linear imaging probes,
white vertical bands,
sometimes more pronounced
on the sides of the image.
White dots, dashes, diagonal
lines, or diagonal lines near
the center of the image.
M
Increase in the image
background noise or white M
mode lines.
White dots, dashes, diagonal
lines, or increase in image
background noise
Color
Color ashes, radial or
vertical bands, increase in
background noise, or changes
in color image.
Color ashes, dots, dashes,
or changes in the color noise
level.
Doppler
Horizontal lines in the spectral
display or tones, abnormal
noise in the audio, or both.
Vertical lines in the spectral
display, popping type noise in
the audio, or both.
ESD caused by discharging of electric charge build-up on insulated surfaces or persons.
RF energy from RF transmitting equipment such as portable phones, hand-held radios, wireless devices,
commercial radio and TV, and so on.
Conducted interference on powerlines or connected cables caused by other equipment, such as switching
power supplies, electrical controls, and natural phenomena such as lightning.
A medical device can either generate or receive electromagnetic interference. The EMC standards describe
tests for both emitted and received interference.
Samsung Medison Ultrasound System do not generate interference in excess of the referenced standards.
Comentários a estes Manuais