Most advanced industrial applications prefer surface measurement by a non-contact method like 3D scanning metrology because of the high degree of precision, speed, as well as accuracy. Read more: https://www.wellarticles.com/a-look-at-different-surface-roughness-measurement-methods-with-focus-on-3d-scanning-metrology/

1. A look at different surface roughness
measurement methods with focus on
3D scanning metrology

2. Over the years many industries have benefited from advanced precision manufacturing and one factor
that has made it possible is the advancement of surface roughness measurement methods. By ensuring
that surface roughness is within tolerable limits, both form and function of any equipment can be
improved by a considerable extent. The methods of surface roughness measurement can be broadly
classified into two categories: contact and non-contact. As their names suggest, contact based
methods use a physical contact between the measurement device and the object in question, whereas
non-contact methods do not require the two to physically interact with each other. Contact methods
generally use a pin to see changes on the surface level, while non-contact methods like 3D scanning
metrology use very high resolution light or lasers to check the roughness levels of the surface in
question.

3. 3D Scanning Metrology
Today, most of the advanced industrial applications prefer surface measurement by a non-contact
method like 3D scanning metrology because of the high degree of precision, speed, as well as
accuracy. Unlike any physical method which is limited by the size of the contact tip to be used for
measurement, 3D scanning metrology uses light and the sheer minuteness of photos means they can
deliver faster and way more accurate results than almost any other method. The measurement system
is about as close as you can get to a ‘one size fits all’ solution. Plus, since there is no physical contact,
it does not change or alter the surface being measured in any way. With a 3D solution, you can also
measure different shapes and sizes with minimal changes required to device configuration. This
means that the turnaround time for measurement is much faster than contact systems. For the
advanced stage of prototyping, 3D scanning can deliver remarkable results that significantly improve
the time to market.

4. Surface Roughness Measurement Methods
The 3D non-contact based surface roughness measurement methods bring a lot of
advantages to industrial processes. First, these systems are very effective for manufactured
parts, as they easily capture areas of engineering optimizations. Another advantage is that
operators can quickly do comparative measurements in real time for different sides of the
same object without having to reposition the object being measured. These systems are
also very useful in finding problems or errors in the manufacturing process by comparing
multiple items from the same production line quickly, which are then compared against the
base manufacturing specifications.

5. Source-
https://www.wellarticles.com/a-look-at-different-surface-roughness-
measurement-methods-with-focus-on-3d-scanning-metrology/

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