What is the difference between a roughness meter and a profile meter?

Difference: The profilometer is an instrument for testing and inspecting the contour, two-dimensional size, and two-dimensional displacement of an object; it is mainly used to measure the contour shape of the surface of the part, and reflects the macro contour of the part. The roughness meter mainly measures the surface processing quality of the grinding/finishing process of the part surface; in layman's terms, it means that the surface of the part is processed smoothly.

#Profilometers and roughness meters are both surface microtopography measuring instruments. So what's the difference between them?

The difference between roughness meter and profile meter

The profile meter is used to test and measure the outline, two-dimensional size and two-dimensional displacement of the object. Inspection instruments are widely used as precision measuring instruments in the automobile manufacturing and railway industries. It is mainly used to measure the contour shape of the surface of the part, which reflects the macro-contour of the part, for example: the groove depth, groove width, chamfering (including chamfering position, chamfering size, angle, etc.) ), the straightness of the cylinder surface prime line and other parameters. In short, the profilometer reflects the macro contour of the part.

Roughness meter is also called surface roughness meter, surface finish meter, surface roughness detector, roughness measuring instrument, roughness tester and other names. It mainly measures the surface processing quality of the grinding/finishing process of the part surface. In layman's terms, it means that the surface of the part is processed smoothly (the old national standard for roughness is called smoothness), that is, the roughness reflects the microscopic conditions of the processed surface of the part. .

Summary

Although the profile meter and the roughness meter are not the same product, there is a close relationship between the two instruments. On this basis, the roughness profile is generated. The all-in-one machine is to install a roughness measurement module on the profile meter, so that it can measure both the profile size and the roughness.

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