Test rig for real contact area in contacts with relative motion

In-situ custom built test rig for real contact area determination in contacts with relative motion using an optical method

Contact: sample - sapphire glass

Motion: linear sliding motion (single direction or reciprocal)

Load: up to 450 N normal force and up to 120 N tangential

Speed: up to 2 mm/s

Sliding distance: 20 mm

Resolution: lateral resolution of contact image better than 1 μm