Scan Grid

The planned set of measurement positions used to map an accessory's field. The grid is defined before testing begins: which scan lines to sweep, the spacing between points along each line, how far past the accessory edge to keep measuring, and which height planes to repeat at. Every spatial metric in the report derives from it, so the grid's density sets the resolution of everything downstream. Coarse spacing can step over a narrow peak, and a grid that stops at the accessory edge leaves the outer falloff unmeasured. Each point records a position and a field value, which lets one grid describe a disc, a loop, or a multi-coil mat. Depth planes are optional, and a grid with only a surface plane still supports every surface metric. See Scan Line, Scan Point, Point Spacing, Extra Points Beyond Edge, and Z-Axis.