[Case Study] Countermeasures for DC Magnetic Field Interference in Scanning Electron Microscopes (SEM)

We will introduce a case where a DC fluctuating magnetic field was reduced to less than 1/100 by an active magnetic field canceller!

We will introduce a case study on countermeasures for direct current magnetic field interference in scanning electron microscopes (SEM). For the SEM installed in a demo room within an office building, the magnetic field effects caused by nearby railway lines were reduced using an active magnetic field canceller, improving the environment. The active magnetic field canceller can achieve significant improvement effects simply by installing coils or similar devices around the target equipment. 【Case Overview】 ■ Key Points of the Countermeasure: Significant magnetic field fluctuations occur constantly near direct current railway lines. ■ Cause: Multiple railway lines located near the target building. ■ Countermeasure and Effect: The active magnetic field canceller reduced the direct current fluctuating magnetic field to less than 1/100. *For more details, please refer to the PDF document or feel free to contact us.

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