">
Spicer Consulting EMI noise cancellation
Spicer Consulting — SC24 Magnetic Field Cancelling System

Spicer Consulting — SC24 Magnetic Field Cancelling System

When the ambient field changes, the electron beam of  the scanning electron  microscope (SEM) / transmission electron microscopes (TEM) is deflected, causing loss of resolution and image distortion. The SC24 system stabilises the field by dynamically creating nearly equal and opposite field changes !!

The SC24 system comprises a magnetic field control unit, one or two magnetic field sensors and three orthogonal axis multicore cables, that are installed in the room where the field is to be cancelled. The SC24 can drive single loop and double loop room size cables. It also works with Helmholtz cables that are attached to a frame around the column.  Three power amplifiers in the control unit drive  currents through the cables to create a field of the opposite sign to the change in ambient field.  The magnetic field sensor measures the resulting field and real time negative feedback reduces the ambient field by the loop gain of the system. The system is dynamic, automatically responding to field changes within 100 µs.

Key Features:

  • Makes the ambient magnetic field  “OK” for the electron microscope
  • Best fit for all scanning electron  microscopes (SEM) / transmission electron microscopes (TEM)
  • Adapts to field changes within 100 µs
  • Touch screen intelligent user interface with automatic setup and DC reset
  • Simultaneous  AC & DC field display with choice of Tesla or Gauss unit
  • Mixes dual sensors to create virtual sensor “inside” the EM column
  • Use AC sensors for cancelling  50/ 60 Hz AC line fields   or:
  • Use DC sensors for cancelling  tram and train DC fields and 50/60Hz
  • Built-in test field generator
  • Ethernet and USB ports for remote operation and monitoring


Please complete the form below downloading the brochure(s)

After "Submit" -- please check your Email.
The brochure will send to you immediately.
If you do not receive, please verify your Email address again.
Thank you!

Product Description

When the ambient field changes, the electron beam of  the scanning electron  microscope (SEM) / transmission electron microscopes (TEM) is deflected, causing loss of resolution and image distortion. The SC24 system stabilises the field by dynamically creating nearly equal and opposite field changes !!

The SC24 system comprises a magnetic field control unit, one or two magnetic field sensors and three orthogonal axis multicore cables, that are installed in the room where the field is to be cancelled. The SC24 can drive single loop and double loop room size cables. It also works with Helmholtz cables that are attached to a frame around the column.  Three power amplifiers in the control unit drive  currents through the cables to create a field of the opposite sign to the change in ambient field.  The magnetic field sensor measures the resulting field and real time negative feedback reduces the ambient field by the loop gain of the system. The system is dynamic, automatically responding to field changes within 100 µs.

Key Features:

  • Makes the ambient magnetic field  “OK” for the electron microscope
  • Best fit for all scanning electron  microscopes (SEM) / transmission electron microscopes (TEM)
  • Adapts to field changes within 100 µs
  • Touch screen intelligent user interface with automatic setup and DC reset
  • Simultaneous  AC & DC field display with choice of Tesla or Gauss unit
  • Mixes dual sensors to create virtual sensor “inside” the EM column
  • Use AC sensors for cancelling  50/ 60 Hz AC line fields   or:
  • Use DC sensors for cancelling  tram and train DC fields and 50/60Hz
  • Built-in test field generator
  • Ethernet and USB ports for remote operation and monitoring


Please complete the form below downloading the brochure(s)

After "Submit" -- please check your Email.
The brochure will send to you immediately.
If you do not receive, please verify your Email address again.
Thank you!

Request for Quotation(*Compulsary Fields)

Your Name:*

Company:*

Email Address:*

Contact Number:*

Occupation:*

Product of Interest:*

List empty! Please add some item(s) first in your enquiry list.