Example: Outer size measurement at a block:

Sample: Precise metal block previously measured with metrology instruments in a calibration laboratory:

Result:

By measuring a set of such parameters it is possible to determine e.g. the central axis of a cylinder, the center of a hole or the zero-point of the 3-dimensional coordinate system from a sample.

Many other examples of dimensional measurements are described in the area of 2D and 3D Profile Measurements, see for example:

• Angles
• Structure height, width, distance
• Periodicity
• Circle fit
• Surface roughness parameters