EMF in Research Laboratories

MRI (Magnetic Resonance Imaging)

Research MRI & NMR imaging systems can experience interference from both external AC and DC magnetic fields. In certain instances, RF from nearby broadcast antennas can poise an EMI threat as well. Strong DC magnetic field levels emitted by magnetics in these imaging systems can also interfere with nearby monitors and other sensitive equipment. A wide variety of laboratory equipment (such as a gas chromatograph) are typically sensitive to interference from external magnetic field sources. Precision robotic systems can also be affected by these fields, if located near sources of elevated AC and DC magnetic fields.

Gas Chromatograph

Research laboratories of all types will typically contain custom, one of a kind equipment or systems whose immunity to external EMI sources is unknown. As a precautionary measure, companies routinely invest in mitigation measures such as magnetic field shielding to ensure such systems are developed, constructed, and operated in low EMI environments as a hedge against any potential interference problem.

FMS provides a "total building" EMI assessment of sites being considered for construction of research facilities. The assessment typically includes an extensive broadband survey from DC to 10 GHz of existing EM levels and a thorough review of facility design and construction documents for EMC issues. If required, FMS also develops and implements mitigation measures to lower EMF to acceptable levels.