Surface Profilometry: contact and non-contact instruments

Description:
In order to measure surface textures (profiles, roughness) and wear volume, two sets of surface profilometers were acquired. One is Taylor-Hobson Form Talysurf Profilometer, another is Rodenstock RM600 Laser Profilometer. The former is a contact stylus instrument, whereas the later is a non-contact laser stylus profilometer.
Talysurf Profilometer	Rodenstock Profilometer
Contact stylus measurement A two axis laser interferometric transducer coupled to a pivotted stylus is used to precisely measure both vertical and horizontal data of a surface Only roughness data can be obtained	Non-contact laser stylus Dynamic focusing of the laser beam and focus error signal are used to determine surface topography 2-D profile, roughness, area of a wear scar profile, 3-D surface topography, and wear volume can be measured
Example: Measurement of roughness of TiN coated HSS surfaces.	Example: Measurement of fretting wear volume, profiles and 3D topography

Technical details:
Talysurf Profilometer
	Measurement length Measurement speed	0.5-120 mm 0.5 mm/s
	Range	4.0 mm with diamond stylus 8.0 mm with ball stylus
	Resolution	10 nm with 60 mm nominal length stylus 20 nm with 120 mm nominal length stylus 40 nm with 240 mm nominal length stylus
Rodenstock Profilometer
	Measurement length Max. scan speed Measurement range Resolution	0.5-120 mm 1 - 400 mm/min +- 3 um, +-30 um, +- 300 um 10 nm, 20 nm, 200 nm respectively

 

Room: 01.01

 

More Technical information: Techinfo@mtm.kuleuven.be

 

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