Quality Control Overview
Gauge Comparison Analysis
Difference Analysis
Heatmap Range & Colours
Define the minimum and maximum boundaries for each group (absolute values) and choose a colour.
Van de Casteele Test Information
This test reveals systematic errors not immediately apparent from RMS differences:
- Vertical line at zero – Good performance ✓ (near‑zero slope, intercept ≈ 0 m, RMS < 0.05 m)
- Inclined line – Scale error (|slope| > 0.05 or 0.05 m < RMS < 0.10 m)
- Ellipse – Vertical offset or time‑shift error (|intercept| > 0.05 m or 0.05 m < RMS < 0.10 m)
- Periodic oscillations – Sensor malfunction (RMS > 0.10 m)
Van de Casteele Settings
Apply a symmetric filter on differences to exclude outliers and ensure the plot is centered.
Specify custom axis limits (optional). Leave blank to auto-range. Use the filter range to trim outliers before setting the axes.