Passive Analog Filters

Stray magnetic fields, excessive ripple currents, MRI systems installed in unshielded environments and other dv/dt sources can be significant problems in many installations. Passive treatment of these "noise" elements can be very effective at reasonable cost. PCI has a large experience base and has achieved successful noise reduction in numerous applications.

One excellent application uses passive filters to improve the performance of unshielded MRI systems. This technique is most useful for MRI installations where a shield room has not been utilized for one reason or another. Passive filtering offers improved imaging, often at significant savings, when compared to the cost of an add-on shield room upgrade.

  • Pass through filters
  • Gradient filters
  • dv|dt line filters
  • Unshielded (usually older) MRI installations