3D Metrology terminology

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3D Scanning – The process of collecting 3D data of a physical object or structure through means of Structured light, Laser or LiDAR  systems.

3D CAD - 3 dimensional Computer Aided Design

3D to CAD – Converting 3D point cloud data or polygonal models to a standard feature based model

3D Digitizer - An input system that records x, y and z coordinates of a real object

A

Accuracy – The degree of how close a measurement is to the recognized true value

Alignment 

As-built 

B

BIM (Building Information Modeling)

C

CAD/CAM

Calibration

Computational Fluid Dynamics (CFD)

CMM

CT Scanning

D

Datum

Datum Feature

Dimensional Metrology

Drone

E

Exact Surfacing

F

Finite element analysis (FEA)

First Article Inspection (FAI)

Free-Form Shapes

G

Gage R&R (Gage Repeatability and Reproducibility)

GD&T

H

I

J

K

L

Laser Scanning

Laser Tracker

Long Range Scanning

M

Maximum Permissible Error

Measurement

Measuring System

Mesh

Metrology

Micron (µm)

Modeling

N

Noise

Nominal Dimensions

Non-Contact Measurement

Non-Parametric Model

NURBS

O

Ordered Data

Outlier

P

Parametric Model

Parametric Modeling

Phase Based Scanners

Photogrammetry

Point Cloud

Polygonal Model

Portable CMM

Precision

Probe

Prismatic Modeling

Q

Quality Inspection

R

Raw point data

Reference Model

Repeatability

Repeatability Condition

Reproducibility

Resolution

Reverse Engineering

S

Scan Density

Scan Speed

Scan to CAD

Scan to print

Sectioning

Short range scanning

Solid Modeling

SPC

Structured Light

Surface Model

Surface Profile

Survey Control

T

Temperature Compensation

Time of Flight Scanners

Tooling Ball

Traceability

Tracker

Triangulation Scanner

U

Uncertainty

V

Verification

Validation

Volume Measuring

Volumetric

W

Water tight models

White Light Scanner

X

Y

Z