VDI VDE 2630 Blatt-1-2 2018-06 PDF

Full title and description

VDI/VDE 2630 Blatt 1.2:2018-06 — Computed tomography in dimensional measurement: Influencing variables on measurement results and recommendations for computed-tomography dimensional measurements. The document describes the typical influences on dimensional measurement results obtained with industrial X‑ray computed tomography (CT), classifies dimensional measurement tasks achievable with CT, and includes annexed recommendations for quality assurance of dimensional CT measurements. Only axial CT systems (workpiece rotation about a space-fixed axis orthogonal to the beam) are considered; both fan‑beam and cone‑beam geometries and X‑ray tube and linear‑accelerator sources are addressed.

Abstract

This guideline identifies and explains the factors that influence CT-based dimensional measurements (equipment setup, scan parameters, reconstruction and artefacts, material and geometry influences), classifies common dimensional measurement tasks for industrial CT, and gives recommendations for assuring and documenting measurement quality. The annex provides practical quality‑assurance recommendations. The guidance applies to typical industrial CT equipment and is valid for both fan‑beam and cone‑beam systems.

General information

• Status: Current (technical guideline / VDI/VDE standard).
• Publication date: June 2018 (2018-06).
• Publisher: Verlag des Vereins Deutscher Ingenieure (VDI/VDE).
• ICS / categories: 19.100 (Non-destructive testing) and 35.240.99 (IT applications / image technology related).
• Edition / version: Edition 2018-06 (this edition replaces earlier VDI/VDE 2630 Blatt 1.2 versions such as 2010-11).
• Number of pages: 27 pages.

Scope

Defines and discusses the variables that influence dimensional measurement results when using industrial CT for geometrical measurements. The scope is limited to axial CT systems where the workpiece rotates about a fixed axis orthogonal to the beam; both X‑ray tubes and linear accelerators are considered as sources. It describes typical CT system structure and indicates which influencing factors are applicable to fan‑beam and cone‑beam CT. The annex contains recommendations for quality assurance and measurement practice.

Key topics and requirements

• Classification of dimensional measurement tasks achievable with industrial CT (lengths, diameters, form, positional tolerances).
• List and description of influencing variables: source characteristics, detector behaviour, scan geometry, object material/thickness (penetration path), reconstruction parameters, artefacts and post‑processing effects.
• Requirements and recommendations for measurement setup and documentation to reduce and report measurement bias and uncertainty.
• Guidance limited to axial CT systems (rotation about a space‑fixed axis) and applicable to fan‑beam and cone‑beam geometries.
• Annex with practical quality‑assurance recommendations for dimensional CT measurements.

Typical use and users

Used by metrology engineers, CT laboratory managers, quality engineers, R&D teams, and suppliers of CT measurement services and equipment. Typical applications include non‑destructive dimensional inspection of complex parts (castings, additively manufactured components, assemblies), process qualification, calibration/verification planning for CT measurement workflows, and preparation of measurement uncertainty assessments.

Related standards

Part of the VDI/VDE 2630 series on computed tomography in dimensional measurement. Closely related documents include VDI/VDE 2630 Blatt 1.1 (Fundamentals and definitions) and Blatt 1.3 (guideline for application of DIN EN ISO 10360 for CMMs with CT sensors). Other related parts address uncertainty, test‑process suitability and software/simulation topics (e.g., Blatt 2.1, 2.2 (draft) and additional planned parts). VDI manuals and VDI/VDE 2617 series items are also relevant for coordinate‑measuring and CT‑sensor integration.

Keywords

Computed tomography, CT, dimensional measurement, non‑destructive testing, measurement uncertainty, CT artifacts, fan‑beam, cone‑beam, quality assurance, VDI/VDE 2630, axial CT.

FAQ

Q: What is this standard?

A: VDI/VDE 2630 Blatt 1.2:2018-06 is a VDI/VDE technical guideline describing variables that influence dimensional measurement results obtained by industrial computed tomography and giving recommendations for performing and assuring dimensional CT measurements.

Q: What does it cover?

A: It covers classification of dimensional CT measurement tasks, the influencing variables (equipment, geometry, material, reconstruction and artefacts), and annexed quality‑assurance recommendations. It applies to axial CT systems and both fan‑beam and cone‑beam setups.

Q: Who typically uses it?

A: Metrology and quality engineers, CT lab operators, equipment manufacturers, and researchers who perform or specify CT‑based dimensional inspection and who need guidance on setup, documentation and reducing measurement uncertainty.

Q: Is it current or superseded?

A: The 2018‑06 edition is the current published edition of Blatt 1.2 and it replaces earlier versions (for example the 2010‑11 edition). Always check the issuing body for any amendments or newer editions if absolute currency is required.

Q: Is it part of a series?

A: Yes — it is part of the VDI/VDE 2630 series on computed tomography in dimensional measurement (Blatt 1.1, 1.2, 1.3, and other related parts addressing measurement procedures, uncertainty, software and test specimens).

Q: What are the key keywords?

A: Computed tomography, dimensional measurement, CT measurement influences, measurement uncertainty, artefacts, quality assurance, axial CT, fan‑beam, cone‑beam, VDI/VDE 2630.