Total Depth
Total Depth is the sum of all individual Layer Depths of a coating stack, as measured by the Boring Thickness Module, in micrometres (µm).
Definition
Total Depth [µm] = Σ Layer Depth_i for i = 1 … N − 1
where N is the number of detected rings in the Säberg-drilled crater and N − 1 is the number of resolved layers.
Interpretation
Total Depth represents the complete dry-film thickness of the coating system between the outermost detected ring (top of the coating) and the innermost detected ring (deepest measured layer).
This value can be cross-checked against an independent non-destructive total dry-film thickness measurement (magnetic, eddy-current) on the same sample. A close match validates the boring measurement; a large discrepancy usually points to either:
- A wrong Drill Angle (most common cause),
- A miscalibrated mm/pixel scale of the Aesthetix Aspec camera, or
- One or more missing rings — in particular a missing innermost ring will make the Total Depth appear smaller than the true total dry-film thickness.
Units
Always reported in micrometres (µm), formatted with two decimal places.
In Appearance Elements
- Column: Total Depth in the Boring Thickness data table
- Detail view: Shown as "Total Layer Depth" alongside the per-layer table in the expanded result panel.
See also: Layer Depth, Drill Angle, Boring Thickness Parameters.