Ra Contour arithmetic mean deviation: the arithmetic mean of the absolute value of the contour deviation within the sampling length.
Product & technical reference
Average Roughness (Ra)
Ra Contour arithmetic mean deviation: the arithmetic mean of the absolute value of the contour deviation within the sampling length.
Technical profile
| Manufacturer / publisher | GRISH / Beijing Grish Hitech |
|---|---|
| Brand / publisher | GRISH |
| Content type | glossary |
| Language | English |
| Category | Metrology & quality control |
| Updated | 2026-10-16 |
GRISH published content
Source: https://grish.com/term/average-roughness-ra-3/ · Original publication: 2022-09-23. Manufacturer claims and terminology are reproduced as source material.Explore Polishing glossary ↗
Source: https://grish.com/term/average-roughness-ra-3/ · Original publication: 2022-09-23. Manufacturer claims and terminology are reproduced as source material.Explore Polishing glossary ↗
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