[Case Study] Countermeasures for DC Magnetic Field Interference in Scanning Electron Microscopes (SEM)
We will introduce a case where a direct current fluctuating magnetic field was reduced to less than 1/100 using an active magnetic field canceller!
We would like to introduce a case study on countermeasures against DC magnetic field interference for scanning electron microscopes (SEM). For the SEM installed in a demonstration 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 simply by installing coils or similar devices around the target equipment. 【Case Overview】 ■ Key Points of the Countermeasure: Large magnetic field fluctuations occur constantly near DC railway lines. ■ Cause: Multiple railway lines located near the target building. ■ Countermeasure and Effect: The active magnetic field canceller reduced the DC 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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By controlling vibrations, we can create comfortable, precise, and safe environments. Our patented equipment is a pioneering company that solves vibration problems. We provide vibration control products tailored to solutions and applications, ranging from seismic isolation and damping products to micro-vibration control in the nanotechnology industry, as well as environmental measurement, structural analysis, and response prediction.
