Applied Dimensional Metrology


		International Institute of Geometric Dimensioning & Tolerancing

Level 5
Applied Dimensional Metrology
Course Outline

Course Objective

To provide hands on insight to intermediate and advanced applications and analysis of 2D & 3D measurement instruments used to determine full compliance to mechanical drawings. Gain insight to key error influences that can provide tremendously different measurement results and to know how to optimize the measurement programs to effectively reduce the measurement error/bias. Gain insight to the strengths and limitations of Gage Repeatability and Reproducibility (GR&R) by making visible some key error influences that can cause significant biases in the results and show how to test and correct for these biases.

Course Length

2 Days (16-hours)

What You Will Learn

3D Measurement

Traceability of measurement to national laboratories
Limitations of 1D and 2D measurements
Understanding key error influences and how to test for and correct

Single Sensor and Multi-Sensor Coordinate Measuring Machines

Video sensors, laser sensors, whitelight interferometers and micro probes
Manual & automatic CMMs, single point touch sensors, scanning sensors and measuring arms
3D surface and form instruments
Introduction to traceable artifacts and value of interim artifact testing

Methods for analyzing and interpreting data results (2D & 3D)

Working with CAD and measurement data (point clouds)
Analytical software – strengths & weaknesses
Understanding least-squares -vs- Minimum zone fitting
Understanding criticality of simultaneous requirements within the standards

Measurement Uncertainty/Traceability

Gage Repeatability & Reproducibility(corrected and uncorrected error sources
Introduction to the limitations of GR&R and benefits of measurement uncertainty

Each subject includes an overview of the tools is followed by a demonstration of best application practices and a discussion of calibration issues and measurement uncertainty factors. Each session includes hands-on lab activity and includes discussions on understanding key error influences and how to test for and correct them.

Target Audience

Anyone requiring an advanced understanding of measurement systems used for measuring mechanical components and assemblies. Specifiers and decision makers of engineering requirements and specifications as well as specifiers of manufacturing processes and measurement applications and anyone doing statistical analysis of design, manufacturing or measurement data. Engineers, designers, metrologists, technicians, machinists, toolmakers, designers, senior inspectors, senior technicians, statisticians and mechanical engineers at all levels.

Prerequisites

GD&T - Advanced Applications or equivalent knowledge! An advanced knowledge of GD&T is required to allow all participants to be successful in this class. If not proficient in advanced GD&T, it’s recommended that all individuals take or retake the advanced course to ensure an optimum and proficient level of understanding.

The Applied Dimensional Metrology Course Outline is available in PDF format.

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