Roughness measurement
The roughness measurement (surface measurement ) is used to determine the surface roughness . To do this, a two- or three-dimensional profile of the surface is measured. With the help of standardized methods, various roughness parameters are calculated from this, which characterize the surface roughness.
equipment
There are many different technologies available for measuring roughness. They can be divided into contact and non-contact processes. In the case of contact technologies, there are simple hand-held measuring devices with skid- type probes and high-quality stationary stylus devices with free probes. With the contactless systems, the confocal technology is particularly suitable . In various standards, such as B. in ISO 25178 , are roughness parameters such as Rt , Rmax , Rz, Rzmax and Ra . Other parameters such as Pt and Rmr (Pmr) can also be used in individual applications .
See also
Web links
- Measurement principle (PDF file; 4 kB)
Individual evidence
- ↑ Raimund Volk: roughness measurement: theory and practice , Beuth Verlag, 2005, ISBN 3410159185 content at Googlebooks