Optical Surface Measurement

Optical Surface Measurement Services

Are you looking for optical surface measurement services? Roughness and waviness measurement with BMT‘s optical profilers provides detailed analysis of surface topography along with 2D or 3D images. In addition to standard measurements, BMT offers:

  • Consulting and assistance for specific measurement routines
  • Complete i.O. and n.i.O. analysis and customized reporting
  • Elaboration of a suitable measurement solution depending on the measurement task

BMT’s measurement systems are versatile and adaptable to a wide range of applications as well as to various sample geometries. Our engineers work closely with your team to determine the best approach to analyze your samples.

Ideal Use of Optical Surface Measurement

This type of measurements is suitable for:

  • Liners and crankcases
  • Flat pieces of material such as metals, leather, ceramics
  • Sealing surfaces
  • Optical components such as MEMS or microlenses
  • Medical components
  • Fuel cell components such as BPP, GDL, CCM
  • Conrods or cams
  • Shafts and gears


This type of measurement offers various benefits:

  • Versatile
  • Adaptable
  • Easy to use
  • Completely integrable
  • Analysis according to EN ISO 25178

Measurement Devices

WLICyl, MiniWLICyl

  • White Light Interferometer
  • For bores between 34 – 136 mm
  • Vertical travelling length of ca. 180 mm
  • Measuring range ± 120 µm
  • Wear analysis
  • Honing analysis


  • Color line scanning (internal or external scanner)
  • For bores between 68 – 150 mm
  • Vertical travelling length of 210 mm
  • Image analysis for honing angle, defects and patterns


  • White Light Interferometer
  • For flat probes
  • Travelling length of ca. 200 mm
  • Measuring range ± 120 µm

If a solution or device is not listed above, please contact us. We will do our best to provide you with a solution that meets your requirements.

Optical Surface Measurement