mean surface roughness

USAGE SUMMARY

The phrase "mean surface roughness" is correct and usable in written English.
It is typically used in technical or scientific contexts, particularly in engineering and materials science, to describe the average roughness of a surface. Example: "The mean surface roughness of the machined part was measured to ensure it met the required specifications."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

46 human-written examples

Ra is the arithmetic mean surface roughness in nanometers.

Nanoscale Research Letters

The mean surface roughness was measured to be ~70.00 nm.

International Nano Letters

The ZnO film thickness is proportional to the mean surface roughness of the film.

Ceramics International

Essentially the PSD describes the mean surface roughness at each length scale in a given image.

Nanoscale Research Letters

The mean surface roughness increased for the treated samples in the order of N < He < H.

Surface and Coatings Technology

The number of pores and the mean surface roughness increased along with the annealing temperature.

Surface and Coatings Technology

Human-verified similar examples from authoritative sources

Similar Expressions

14 human-written examples

Fig. 8 Average surface roughness (Sa) mean values in micrometre across the four groups.

Progress in Orthodontics

Columns 3 and 4 of Table1 present the changes in average surface roughness and root mean square surface roughness values of several random areas in all samples with change in the angular positions.

Journal of Theoretical and Applied Physics

Based on the fact that the grain size was reduced by increasing the angles, a decline in amount of the average surface roughness and root mean square surface roughness was also observed in measured values by increasing the angle.

Journal of Theoretical and Applied Physics

The root mean square average surface roughness (Ra) changed from 5.82 nm (FEP) to 13.60 nm (FEP-PAAc) and 11.74 nm (FEP-PAAc-Hp).

Surface and Coatings Technology

The root mean square surface roughness (R q ), the surface roughness (R a ), the mean ( left overline{Z}right), ) media (Z 1/2), mode (Z mp ) and range (R t ) heights, the maximum valley depth (R mvd ), the maximum peak height (R mph ), skewness (R sk ) and kurtosis (R ku ) are used to quantify surface roughness.

Nanoscale Research Letters

Expert writing Tips

Best practice

When describing surface characteristics in technical reports, always specify the measurement method used to determine the "mean surface roughness" (e.g., AFM, profilometry) to ensure reproducibility and comparability of results.

Common error

Avoid using "mean surface roughness" (Ra) and root mean square roughness (Rms) interchangeably. Ra represents the arithmetic average of the absolute values of the surface deviations, while Rms is the square root of the mean of the squared values. They provide different, though related, information about surface topography.

Linguistic Context

The phrase "mean surface roughness" functions as a noun phrase, typically serving as a subject or object in a sentence. It quantifies the texture of a surface. Ludwig AI confirms its usability in technical contexts.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, "mean surface roughness" is a commonly used and grammatically sound term, primarily within scientific and technical fields, to quantify surface texture. Ludwig AI analysis and real-world examples confirm its accurate usage and importance. The analysis highlights the importance of clarifying measurement techniques. Keep in mind that alternatives such as "average surface roughness" and "root mean square roughness" may be considered in different contexts. Remember to distinguish Ra from Rms in technical writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

average surface roughness

This is a direct synonym, replacing "mean" with "average".

arithmetic mean roughness

Specifies the type of mean being used, which is often the arithmetic mean.

average roughness

Simplifies the phrase by removing "surface", implying it.

roughness average

Reorders the words slightly while retaining the same meaning.

surface texture

Refers to the overall characteristics of a surface including roughness.

surface finish

Indicates the degree of smoothness or roughness of a surface after processing.

root mean square roughness

Uses a different statistical measure of surface variation.

surface irregularity

Describes the deviations from a perfectly smooth surface.

texture height

Refers to the vertical deviations of a real surface from its ideal form.

surface profile

Describes the two-dimensional representation of the surface roughness.

FAQs

What is the definition of "mean surface roughness"?

"Mean surface roughness" (Ra) is the arithmetic average of the absolute values of the surface height deviations measured from the mean line. It's a common parameter used to characterize surface texture.

How is "mean surface roughness" measured?

The "mean surface roughness" is typically measured using techniques such as stylus profilometry or atomic force microscopy (AFM). These methods quantify the height variations on the surface.

What's the difference between "mean surface roughness" and "root mean square roughness"?

"Mean surface roughness" (Ra) calculates the arithmetic average height deviations, while "root mean square roughness" (Rq or Rms) calculates the square root of the mean of the squared height deviations. Rq is more sensitive to large peaks and valleys.

What are some other terms used to describe the concept of "mean surface roughness"?

Alternatives include "average surface roughness", arithmetic average roughness, or simply surface roughness. The specific choice may depend on the context and the desired level of detail.