MEG Room Magnetic Shielding Efficiency Tester

SKU: 44701

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Verify magnetoencephalography room shielding using the Magnaprobe Mark I, a 3D sensor that detects stray magnetic fields and leaks in real-time

Magnetoencephalography Stray Field Detection Device

The precise measurement of neural pathways during magnetoencephalography (MEG) is a highly sensitive process due to the nature of biomagnetic signals. Neurons firing in the brain produce minuscule electrical currents with exceptionally weak magnetic signatures. These are captured in real-time withSQUID detectors with highly accurate temporal resolution. Mapping these subtle spatial fields requires an environment completely isolated from background noise. Without a strictly managed, well-shielded room, everyday background electromagnetic interference completely eclipses the brain's internal activity. Ensuring total magnetic shielding integrity is difficult because stray fields leak dynamically across a complex three-axis orientation which are hard to pinpoint.

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The Magnaprobe Mark I requires no electrical power. It is safe to deploy around high-sensitivity medical hardware without generating its own RF emissions. Beyond primary clinical audits, it remains a robust baseline tool for technicians managing complex NMR labs, testing custom passive magnetic shielding alloys, or demonstrating environmental containment parameters. Ultimately, professional-grade 3D field verification is easily achievable directly at your facility using this specialized analogue probe.

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Reviews (1)
2018-01-30

I have bought several of these over the years, originally from the British company that makes them, and more recently from this company. I have trouble keeping them because everyone seems to want one. They are indispensable for showing the angle of the magnetic field in three dimensions. It is like a 3 dimensional compass, and very sensitive too. It will even show the vertical angle of the Earth's magnetic field! If your business is magnets, you need one of these.

— Mark
— Indigo:

Thanks for the feedback. This version, the Mark I is incredibly sensitive as you noted. We had them tested once & the will respond to a field as weak as 0.3 gauss. Besides declination they are great for detecting magnetic leakage in NMR/MRI labs. Overkill for Q/A though, use the Mark II instead.

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