Nottingham Workshops


University of Nottingham, East Midlands Conference Centre, Beeston Lane,
Nottingham NG7 2RJ, UK Monday 30 May 2016

Workshop: Optical 3D Coordinate
Metrology of Complex Shapes

Workshop Chairs:
Prof. Wolfgang Osten, University of Stuttgart, DE Prof. Richard Leach, University of Nottingham, UK

Confirmed Speakers:
Mr Nick Weston, Renishaw, UK Mr Thomas Mayer, Carl Zeiss, DE Dr. rer. nat. Klaus Veit, 3D-Shape GmbH, DE Complex surfaces that perform specific tasks abound in all walks of life.

Examples include freeform optics, medical components, large aerospace structures and parts made using additive manufacturing. The measurement of complex form using optical techniques was pioneered over thirty years ago with techniques such as holography and speckle interferometry.

But, the most prominent methods now used in industry are fringe projection and laser triangulation. Both techniques have seen huge commercial success and have spawned thousands of publications.

This workshop aims to present the latest advances in commercial research and development, and the technology trends. Modern applications of optical techniques will be highlighted and hints will be given as to the future direction of the field

Figure: Additively manufactured components measured using fringe projection (parts supplied by 3T RPD).

Dr. rer. nat. Klaus Veit 3D-Shape GmbH, DE

Since 2013 Productmanager, ISRA VISION /3D-Shape GmbH
2012 – 2013 Productmanager Triangulation systems, ISRA VISION/3D-Shape GmbH
2008 – 2012 Head of Development Triangulation Systems, 3D-Shape GmbH
2001 – 2008 Software Developer, 3D-Shape GmbH
1998 – 2003 Friedrich-Alexander Universität Erlangen-Nürnberg, Physik, Dr. rer. nat.
1992 – 1998 Friedrich-Alexander Universität Erlangen-Nürnberg, Physik, Diplom-Physik

Workshop: FaBiMed

Fabrication and Functionalization of
BioMedical Microdevices

The Future of Medicine will be universal, remote and personal. This requires the development and manufacturing of pervasive diagnostic and treatment devices with low cost, customized, miniature, disposable components. Their manufacture is one of the current barriers for many future medicine devices, from microfluidic PoCD, to minimal invasive surgical tools.

FaBiMed will develop new manufacturing routes for medical microdevices, based on microreplication. The main objective is to produce micron-resolution, nanostructured components in biocompatible and fuctional materials, at production cost which is compatible with disposable components.

The developments will be demonstrated on real disposable components for medical devices: microfluidic analysis films, transdermal microneedles and intravenous ultrasound microprobe.

Main technical developments:
• Digital (masterless) manufacturing of moulds.
• New mould materials and configurations.
• Low cost microreplication techniques.
• Simple embedding of microfilters, hydrophilic, cell
• Attachment and other kind of 3D microstructured surfaces.
• Novel quality inspection systems: MV-OCT quality assurance, and in-cavity RT-OCT.

Several mould fabrication processes will be studied according to the final product.
• Direct 3D writing of elastomeric moulds for ceramic microcasting
• Micro and nanostructured sapphire inserts for IM and HE.
• Nanostructured metallic cavities for injection moulding and embossing tools.
• 3D micromachining with ultrafast lasers
• High precision multistage additive/sustractive microinsert fabrication with autoalignment

Consortium: Innovative SMEs from across Europe have partnered together in this project with RTOs and Universities. Lead user companies in the medical device industry provide the case studies: AFM, SENSLAB and CROSPON.

A public health provider (SERGAS) represents in the project the medical sector, user of the devices. Product and technology development is in the hand of technology base companies (ADAMA, Promolding, TSD) and research organizations (AIMEN, Fraunhofer IWU, University of Aveiro, INEGI and RECENDT).ications.

Workshop: Metrology

Metrology for Movement and
Positioning in Six Degrees of Freedom

The EMRP project “Metrology for Movement and Positioning in Six Degrees of Freedom” focuses on aspects regarding the calibration of motion systems with high uncertainty requirements. Different approaches and instrumentation developed for the measurement of 6DoF motions as well as important aspects of motion systems like straightness and orthogonality are analysed and compared.

The high-level objectives of the project were:

• Development and optimisation of interferometric sensors for traceable measurement of position, angle and straightness in cartesian motion systems with uncertainties in the nanometre range.

• Development and comparison of methods and instruments for straightness and orthogonality measurement.

• Improvements to the measurement speed of AFM to allow measurements of larger areas and to reduce drift in the instrumentation

• Characterisation of motion systems in 6DoF, including the characterisation of motion stages for nanometrology with uncertainties down to the sub-nanometre range as well as those positioning devices with large angular motion possibilities. The most complex class of motion systems combines linear and large angular motion like Hexapods or a combination of linear and rotary axes.

One way to overcome this problem is the use of coordinate measurement machines with tactile or optical probing of reference points on the motion stage. Another solution is the use of laser tracers which use balls as angle insensitive reflectors.

Different methods like interferometry, deflectometry, self calibration and multilateration for straightness determination in measurement machines will be compared to allow for a secure base for the choice of an appropriate method in ultra precision engineering.

AFM as a scanning instrument is limited in measurement range by the necessary time and the stability of the tool and the tip. The project deals with these problems in different ways. Tools were tested regarding long time stability and tip wear. Metrology systems are applied to high speed AFM and new intelligent scanning strategies and associated data processing will be made available in the form of software libraries.

The results of the project will be presented in talks during the workshop

Speakers (Nominal titles):
Alain Küng, Klau Wendt: Calibration of 6 DoF positioning devices by coordinate measurement machines and laser tracers.
Christoph Weichert, Jens Flügge: Deflectometric methods for straightness metrology
Eberhard Manske: Multilateration for encoder characterisation
Gerd Ehret, Heifeng Xu: Flatness measurements of machine reference mirrors
Gabor Molnar, Jens Flügge: Camera based interferometer for simultanous measurement of 6Dof from a single interface
Josef Lazar, Ondrej Chip: Laser diodes for high resolution interferometry
Andrew Yacoot, Petr Klapetek: A testbed for nanopositioning devices.
Loren Picco: Metrological high speed AFM.
Nataliya Vorbringer-Dorozhovets: Large range AFM metrology

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