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The first step in an effective EMF/EMI Assessment is the ability to identify, document, record, and analyze the existing electromagnetic environment (e.g. Geo-Magnetic, Quasi-DC, AC ELF, and RF field levels) at the site(s) of concern. This is routinely accomplished by conducting a broadband EMF/EMI Survey.
FMS offers full spectrum (0Hz – 3GHz and higher if required) comprehensive site analysis surveys which can be tailored to the client’s specific needs or requirements. The surveys are performed by highly experienced engineering staff using specialized and NIST traceable test equipment.
Utilizing data provided by the results of the site analysis, FMS compares the documented EMF levels to either client-established or equipment EMI/EMC standards to determine if EMF levels exceed EMI/EMC threshold limits. In the absence of specific guidance, FMS relies on published international EMI/EMC standards.
If the predicted EMF environment exceeds a specific EMI/EMC specification, an EMI threat risk will likely exist. For each area determined to be at EMI threat risk, FMS provides recommendations, as appropriate, to mitigate the EMI threat risk to below recommended or established industry EMI/EMC standards.
FMS provides guidance on “Determining EMI Threat Risk” and the critical decision of a “target” residual field strength specification for mitigation recommendations. FMS provides specific mitigation plans that achieve the client’s “target objectives” along with their associated cost and construction schedule impact.
FMS was engaged to conduct a thorough assessment of the building’s design for EMI interference threat concerns to sensitive clinical and research equipment.
To mitigate EMI threat concerns, FMS designed and implemented multiple special magnetic field shielding schemes to lower EMF levels to acceptable, non EMI threat levels.
As the EMI Consultant, FMS performed an assessment of the potential for large power distribution systems to impact the operations of sensitive imaging tools and other susceptible electronic equipment.
Over its 20 years, FMS has successfully completed hundreds of EMI projects which included a diverse range of consulting and mitigation services.