Probe types: F-type, N-type
Operating principle: F-type employs magnetic induction; N-type utilises eddy currents
Measuring range: F-type 0–1250μm; N-type 0–1250μm (0–40μm for chrome-plated copper)
Minimum resolution: 0.1μm for both probe types
Indicated error: Zero-point calibration: ±(3% H+1)μm; Two-point calibration: ±[(1~3)% H+1]μm
Test conditions:
Minimum curvature radius: F-type convex 1.5mm, N-type convex 3mm
Minimum area diameter: F-type Ø7mm, N-type Ø5mm
Critical substrate thickness: F-type 0.5mm, N-type 0.3mm
