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Glossary

Below is a list of some of the most popular 3D laser scanning, dimensional inspection and terrestrial scanning terms.

 
3-2-1 alignment

An alignment method used in laser scanning inspection applications to align the point cloud to the part. The method uses 6 points: 3 points define a plane, then 2 points define a line, then the last point completes the alignment.

3D

Three-Dimensional

3D compare

A 3-dimensional comparison between an as-build physical object and a reference (design) model.

3D digitizer

Several types of devices that capture digital shapes of physical objects using either non-contact scanning, such as laser scanners, or contact scanning, such as CMMs.

3D laser scanning

A non-contact technology that digitally captures the shape of physical objects using laser light. 3D laser scanners create a point cloud of data samples from the surface of the object from which a digital CAD model can be made.

3D modeling

The process of creating a mathematical, wireframe representation (a 3D model) of any three-dimensional object with specialized modeling software. The model can be displayed as a 2D image through 3D rendering or used in computer simulations (FEA). The model could also be made physically with 3D printing devices.

3D printer

A type of device that can physically build or "print" 3D computer models.

3d scanner

A device that uses some kind of light or radiation (such as from a laser) to scan an object, capturing point cloud coordinates which digitally define the shape of the object.

6Sigma

A quality management program to achieve "six sigma" levels of quality. Six Sigma aims to have the total number of failures in quality, or customer satisfaction, occur beyond the sixth sigma of likelihood in a normal distribution of customers. Here sigma stands for a step of one standard deviation; designing processes with tolerances of at least six standard deviations will, on reasonable assumptions, yield fewer than 3/4 defects in one million. Laser Design high-accuracy scanning systems help companies to achieve 6Sigma quality levels.

A2LA accreditation

The American Association for Laboratory Accreditation (A2LA), a nonprofit, non-governmental, public service, membership society provides comprehensive services in laboratory accreditation and laboratory-related training. A2LA accredited labs must conform a stringent set of quality standards.

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