Zeiss TSK Surfcom Profilometer
Dimensional Measurement, Inc. (DMI) offers A2LA accredited Surface Roughness Measurement, Calibration (2D Surface Analysis) for your parts at our facility in Wixom, Michigan. Our ISO 17025 accredited certification includes surface analysis and testing, which can provide a valuable evaluation for warranty and product issues, such as:
- Wear verification
- Noise or mating part irregularities
- Seal leaks
There are numerous different surface finish parameters that can be reported on your parts, some of the more common ones are:
Ra – Roughness Average
Rz – Average Maximum Height
Rt – Maximum Height of the Surface
Rv – Maximum Valley Depth
Rp – Maximum Peak Height
R Motif – Motif Parameter
DMI’s proficiency with surface measurement allows us to accurately identify the problem at hand, apply standards, and utilize the proper equipment for surface analysis. Resulting 
data can be displayed in a graphical report Surface Finish Report
Examples of the most popular standards used by DMI to measure surface roughness are:
ISO 4288 1997: Geometrical Product Specifications (GPS) – Surface Texture: Profile method – Rules and procedures for the assessment of surface texture
ISO 3274 1996: Geometrical Product Specifications (GPS) – Surface Texture: Profile method – Nominal characteristics of contact (stylus) instruments
ISO 12085 1996: Geometrical Product Specifications (GPS) – Surface Texture: Profile method – Motif parameters*
*Motif parameters are typically used by French based organizations
DMI can help you make sense of your surface roughness measurement requirements, provide the proper means of surface analysis, and establish the correct parameters necessary to help you qualify sensitive details of your part’s performance.