Very high accurate cylindricity inspection
type: Distribution
access URL: https://pastel.hal.science/pastel-00967204
format: HTML
issued: 2026-05-05T20:00:49.939745
modified: 2026-05-05T20:00:49.912303

Very high accurate cylindricity inspection
type: Dataset
contact point: Organization
  fn: CCSD
keyword: mechanical-design
keyword: circularite
keyword: circularity
keyword: theses
keyword: cylindricite
keyword: spiotherengineering-sciences-physicsother
keyword: infoeu-reposemanticsdoctoralthesis
keyword: cylindricity-inspection
keyword: error-elimination
keyword: three-dimensional-metrology
keyword: precision-machine
keyword: machine-de-precision
keyword: conception-mecanique
keyword: metrologie-dimensionnelle
keyword: elimination-derreurs
landing page: https://pastel.hal.science/pastel-00967204
description: The “Laboratoire Commun de Métrologie LNE-CNAM (LCM)” seeks to improve the measurement of primary pressure standards done using pressure balances, to an order of 10-6 relative uncertainty. Therefore, it is appropriate to back-up these pressure balances with a measurement of the topology of the piston-cylinder devices used on these balances. Cylindricity measurement is also found in many industrial applications such as the measurement of standards used for the calibration of measuring machines. This research project, conducted in collaboration with SAS GEOMNIA under a CIFRE agreement, has a main objet to develop a new ultra-high precision machine for cylinders form measurement. We pushes with this project the leading edge of the cylinders form measurement area; we propose indeed a technological leap which leads to reduce the uncertainty associated to cylindricity errors up to 10 nm in a cylindrical working volume of 350 mm diameter rand 150 mm height. Form measurement is usually done using a measurement probe moved about the surface to be measured with high precision guiding systems. Nonetheless, these guiding systems are not precise enough to offer the low uncertainty required even when error correction techniques are used. This is because the precision of the guides is limited by their low repeatability. To meet this uncertainty level, we propose an approach based on the “dissociated metrological structure” concept. The measurement consists of comparing the artifact's form with the form of a cylindrical reference which should have perfect form stability. However, the mapping form deviation of this cylindrical reference needs to be identified at the same level of uncertainty referred.The present work exposes a detailed analysis of the existing measuring machines and their limitations. Consequently, an optimized machine architecture is proposed in order to overcome the present limitations. The proposed machine architecture takes into account the "secondary" error ter…
identifier: NNT: 2013ENAM0067
issued: 2026-05-05T20:00:49.936014
language: fr
modified: 2026-05-05T20:00:49.936019

test_moissonnage_selune
type: Agent