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The LNE is not only the national reference in metrology for the French industry, but also a dedicated organism to research, calibration, testing, certification and training.

GEOMNIA has forged a close partnership with the LNE with which it had two main R&D projects: 

 

 

 

A project concerning the development of a new reference apparatus for an ultra-high-accuracy cylindricity measurement. GEOMNIA has taken part in the design of this new apparatus and in the development of software for the form characterization of hollow/solid cylinders, while aiming at a measurement uncertainty of few nanometers, brought by a technological shift and pushing the LNE to the top of the international rankings. This work was covered by a PhD thesis that was accomplished during the period between April 2010 and December 2013 in collaboration with Arts et Métiers ParisTech. The work was subject to several international scientific publications.


A project concerning the complex surfaces reconstruction from large and unorganized datasets for 3D metrology.  This project falls within the European Metrology Research Program of 2010 (EURAMET): SRT 06i and is entitled “Optical and tactile metrology for absolute form characterization”. The related research initiated by the LNE and GEOMNIA was subject to another PhD thesis which has started in September 2011 and ended in December 2014 in collaboration with Arts et Métiers ParisTech and the ENS de Cachan Engineering schools. GEOMNIA hosted the PhD student for a period of 2 years and participated, along with the LNE, in the funding of the research matter.


related website: http://www.lne.fr/

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The INSM (Ingénierie Numérique des Systèmes Mécaniques) is a research team within the Laboratoire des Sciences de l’Information et des Systèmes LSIS-INSM (UMR CNRS n° 7296) of the Engineering school of Arts et Métiers ParisTech (ENSAM) in Lille. It aims at developing mathematical methods and algorithms for vibrations control in multi-axis mechanical systems and for the control over the form description of complex geometries.

 

 

These works are focused around two topics:

• •A thematic of applied mathematics oriented towards the proficiency in the description of complex geometries in CAD/CAM and trajectory planning in robotics.

• A second thematic on the topic of design of high-precision nano-measuring machines aiming at controlling the geometrical accuracy of surfaces through the usage of measurement machines and the elaborations of standard artifacts.

The cooperation between GEOMNIA and Arts et Métiers ParisTech in Lille covers the following projects:

AC_GAMMA (Advanced Computational Geometry for Automatic Micrometric Metrology Applications) ), a collaborative R&D project sponsored by OSEO, FEDER and La Région Nord-Pas de Calais.

The development of a new reference apparatus for the ultra-high-accuracy cylindricity measurement. . A PhD thesis that took place between April 2010 and December 2013 in partnership with the LNE.

Complex surfaces reconstruction from large and unorganized datasets for 3D metrology. PhD thesis that took place between September 2011 and December 2014 in partnership with the LNE and ENS de Cachan (LURPA).

SELECT 2.0, a collaborative R&D project in robotics held by the pole of competitiveness i-Trans under a FUI funding. EADS IW leads this project alongside Montupet, le CETIM and Dupuis Mécanique.

 

 

 

• GEOMNIA is also a partner of the Usine Agile technological Platform of Arts et Métiers ParisTech, Lille. Usine Agile is a platform for the development of innovative numerical tools and processes at an industrial scale.

 

related website: http://www.ensam.eu/fr/centres_et_instituts/centre_lille

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The Center for Innovation in Contactless Technologies promotes the understanding of upcoming innovative contactless technologies in matters of the Internet of Things.

Its primary mission is to reinforce the existing synergies between the different actors of the economical system, industrial, academic or even institutional actors who wish to master, anticipate or just be informed about the Internet of Things, and more specifically, the contactless technologies.

 

 

 • GEOMNIA is a member of the design office and the board of directors of Citc-EuraRFID. Citc-EuraRFID.

 • The main cooperation between GEOMNIA and Citc-EuraRFID covers the contactless measurement technologies.

 

related website: http://www.citc-eurarfid.com/ 

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GEOMNIA has been created within Euratechnologies. It has benefited from a 2-years swarming program and is now assisted by the acceleration program. 

www.euratechnologies.com

3D Embedded Metrology
Dimensional In-Process Metrology

We put our know-how, our skills as well as an excellent reactivity at your service to realize and coordinate all your dimensional metrology projects for advanced manufacturing in harsh production environments, where increased complexity and reduced tolerances, require ever smaller measurement uncertainties, shorter measuring time, increased information content and production integrated metrology.

We develop traceable, fast and robust in-process software and non-contact precision sensors based versatile modular mechatronics systems metrology, enabling improved process control.

 
Fully automated software solutions for embedded geometric processing and metrological analysis

 

GEOMNIA develops and provides a modular software platform for geometric processing and metrological analysis of 3D point cloud data. This platform is designed to facilitate innovation and enabling accurate measurement for advanced manufacturing industries by means of improved integrated fully automated metrology applications that are robust, fast and verified to accepted standards. The open design concept allows software module integration with our own UGI or in dll based format directly implemented in the customer application.

We typically provide software implementing high dense 3D point cloud data advanced computational geometry algorithms. This processing includes:

 

 
  • automatic calibration of multiple sensor concept based metrology platforms and devices (separation, propagation…)
  • registration of multiple measured data : composition of a 3D cloud from measured data (1D, 2D, or 3D) and, where appropriate, displacement information of the measuring device.
  • automatic operation on the 3D point cloud or mesh  (filtering, classification/segmentation, fine alignment to CAD nominal geometry, surface reconstruction)
  • data evaluation : geometric processing and metrological analysis of 3D point cloud data, comparison to CAD geometry and ISO tolerancing, 2D cross section analysis…
  • 3D Visualization
  • a modular  open design allowing flexibility and easy software module integration in the customer application. 
  • fast, robust, uncertainty evaluation and traceability

  

 

 

Our results are typically provided with rigorous uncertainties, thus enabling users to have a better confidence in their measurements.

 
Micro and nano-scale mechatronics metrology systems design

To meet dimensional metrology critical demands, such those needs for next generation of measuring multiple sensors instruments identified in applications ranging from the nano- and micro-scale, especially for in-process 3D inspection, GEOMNIA designs metrology Mecatronics systems that constitute a key ingredient of many high tech precision systems, both in production equipments and laboratory applications. Positioning control and measuring through appropriate sensing and metrology platforms is typically challenging in terms of required precision and accuracy under changing configurations and possibly harsh environmental conditions. An appropriate trade-off has to be established in being fast and accurate.

Designing high-end devices with high accuracy performances for innovative application led typically to non standard design concepts. GEOMNIA designs a next generation of measuring devices, such as new multiple sensor concepts based metrology platforms, leading to a new in-process inspection concept enabling accurate measurement. Implementation of non-contact precision technologies in versatile modular mecatronics systems and metrology stages as well as an appropriate dynamic sensing and compensation concept minimize or eliminate the performances corruption and perturbing back-action under on-site industrial production conditions.

GEOMNIA entierly or partly defines the architecture of multi-sensor devices with or without positioning and rotating stages:

  • Customer's specification analysis
  • Measurement approach and strategy
    • Sensors selection and association (laser triangulation point and scan, stereo-vision, capacitive, eddy current, confocal, interferometric techniques...)
    • Measurement uncertainty and traceability
    • Overcome or compensate geometric errors
    • Overcome or compensate deformation and thermal effects
  • Feasibility Study
  • Concept design, testing, ongoing development, implementation, validation
  • Support and maintenance