Dictionary / Coverage & Falloff

Coverage Area

Coverage & Falloff

The portion of a multi-coil mat surface where the magnetic field exceeds a defined fraction of the peak. Reported in cm² and as a percentage of total mat surface at two thresholds: 35% of peak, which is the figure the report quotes and the same threshold the Concentration Score uses, and 10% of peak, the practical edge of useful field. Coverage tells you how much of the mat actually delivers meaningful intensity rather than fading between coils. The quoted threshold was 50% of peak before August 2026, so coverage figures published before that date read lower than figures published after it for the same mat.

Pancake Coil example: The measured field strength across the surface of a Pancake Coil example, rendered as terrain. Measured by Gauss Labs from a real accessory and presented as an illustrative example. — The measured field strength across the surface of a Pancake Coil example, rendered as terrain. Measured by Gauss Labs from a real accessory and presented as an illustrative example.

A mat spreads many coils across a wide surface, and each coil lays down its own field footprint. How many coils there are is the coil count, how they are arranged is the coil layout, and the surface they cover together is the coverage area. When every coil peaks at about the same strength the coverage is uniform, and the field that spills from one coil into its neighbor is neighbor coupling.

universal

Coverage Area

Related terms

Gauss Labs

Reach Out