What is the difference between CMM and Profilometer

A. Structurally speaking

CMM is mainly composed of mechanical system, detection system, electrical control hardware system and data processing software system.
DIPSEC series measuring equipment mechanical overall structure with good rigid structure, light weight fully closed frame moving bridge structure, its structure is simple, compact, large bearing capacity, good movement performance, the whole machine uses 7075 hard aluminum alloy as the main body of lightweight design, reduce the quality of moving parts at the same time, The stiffness of the whole machine is increased to improve the dynamic response and dynamic stability of the measurement.

The profilometer consists of granite plate, workbench, sensor, drive box, display, computer, printer and other components. When measuring, different positions can be selected, various automatic measurement lengths can be set, and the sampling amount can reach tens of thousands of data points for evaluation. It can display or print the contour shape and its dimensions, various roughness parameters, contour support length rate curves, etc.

B. Usage speaking

CMM can measure mold products, electronic products, communications, automobiles and so on. It has been widely used in aerospace, automotive, electronics, mold and other industries.

- With points (including plane points and space points), straight lines, planes, circles, ellipses, rectangles, cones, cylinders, rings, balls, keyways, curves, surfaces and other measurement functions, you can also use the measurement program to automatically measure suitable parts.

- Can calculate the interrelations between basic geometric elements: distance, center, intersection, projection, Angle, etc.
- Can calculate the form and position error: straightness, flatness, roundness, cylindricity, parallelism, perpendicularity, symmetry, concentricity, coaxial, end runout, radial runout, full runout, etc. It's very versatile.

The profiler can measure the roughness and shape parameters of various precision machined parts. The circular arc and straight line are evaluated by fitting method. Arc radius, straightness, crown, slot distance, dip Angle, vertical distance, horizontal distance, step and other shape parameters can be measured. The instrument can also test the surface roughness of various parts. It can detect the roughness of plane, inclined surface, outer cylinder surface, inner hole surface, deep groove surface, arc surface and spherical surface to realize multi-parameter measurement.

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