Browsing by Author "Shore, Paul"

Browsing by Author "Shore, Paul"

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  • Evaluation of the performance variation of porous air pads on discontinuous surfaces 
    Sanz, Claude; Morantz, Paul; Lunt, Alexander J. G.; Shore, Paul; Chérif, Ahmed; Schneider, Jürgen; Mainaud-Durand, Hélène; Steffens, Norbert (Elsevier, 2019-10-31)
    A new high accuracy position measurement system has been developed. It measures the position of a 0.1 mm diameter copper-beryllium wire that informs alignment of energy beams in advanced particle accelerators. This new ...
  • Fast figuring of large optics by reactive atom plasma 
    Castelli, Marco; Jourdain, Renaud; Morantz, Paul; Shore, Paul (2012-09-13)
    The next generation of ground-based astronomical observatories will require fabrication and maintenance of extremely large segmented mirrors tens of meters in diameter. At present, the large production of segments required ...
  • Form measurement of a 0.1 mm diameter wire with a chromatic confocal sensor, with associated uncertainty evaluation 
    Sanz, Claude; Giusca, Claudiu; Morantz, Paul; Marin, Antonio; Chérif, Ahmed; Schneider, Jürgen; Mainaud-Durand, Hélène; Shore, Paul; Steffens, Norbert (IOP Publishing, 2018-06-07)
    The accurate characterisation of a copper–beryllium wire with a diameter of 0.1 mm is one of the steps to increase the precision of future accelerators' pre-alignment. Novelties in measuring the wire properties were found ...
  • Grinding metre scale mirror segments for the E-ELT ground based telescope 
    Comley, Paul; Morantz, Paul; Shore, Paul; Tonnellier, Xavier (Technische Rundschau, Hallwag Publishers; 1999, 2011-04-21)
    The next generation of ground based telescopes require many hundreds of metre scale off-axis mirrors. In this paper the grinding of a 1.45m scale Zerodur® mirror segment for the European Extremely Large Telescope (E-ELT) ...
  • Heat transfer properties of laser assisted plasma processing 
    Parkins, Jonathon (Cranfield University, 2012-08)
    Laser assisted plasma processing (LAPP) is a novel extension to already established Reactive Atom Plasma (RAP) processing for atmospheric pressure dry chemical etching of silicon based materials; this is mainly applied for ...
  • The Integrated Knowledge Centre: A Partnership Between UK Higher Education and Engineering Industry 
    Sansom, Christopher L.; Shore, Paul (Common Ground Publishing, 2012-02-21)
    We discuss the creation of an Integrated Knowledge Centre, a unique collaboration between academia and industry, which is delivering to UK industry 'disruptive' technologies based on ultra precision engineering. The ...
  • Investigation of power dissipation in a collimated energy beam 
    Yu, Nan; Jourdain, Renaud; Gourma, Mustapha; Shore, Paul (Trans Tech Publications, 2015-08-20)
    To satisfy the worldwide demand for large ultra-precision optical surfaces, a fast process chain - grinding, polishing and plasma figuring- has been established by the Precision Engineering Institute at Cranfield University. ...
  • Machining of Optical Surfaces in Brittle Materials using an Ultra-Precision Machine Tool 
    Shore, Paul (Cranfield University, 1995-03)
    Investigations of machining optical surfaces into brittle materials using an ultra precision machine tool are presented. The newly developed ultra precision NION machine is evaluated to gain a good appreciation of its ...
  • Machining surfaces of optical quality by hard turning 
    Knuefermann, Markus M. W. (Cranfield UniversitySchool of Industrial and Manufacturing Science, 2003-11)
    The main aim of this work was the machining by hard turning of surfaces with optical surface quality. A numerical target had been set as a surface roughness Ra = 10nm. It has been shown that achieving roughness of that ...
  • Micro-scale finishing of the surface and form of a Ti-6Al-4V lightweight rotor obtained by laser powder bed fusion used for air bearing 
    Sanz, Claude; Gerard, Romain; Morantz, Paul; Chérif, Ahmed; Shore, Paul; Mainaud-Durand, Hélène; Lunt, Alexander J. G. (Elsevier, 2018-07-26)
    The European Organisation for Nuclear Research, CERN, is in the process of designing and testing parts for the next generation of linear accelerators. In order to operate the experiments, the pre-alignment precision of the ...
  • Microwaves enable activated plasma figuring for ultra-precision fabrication of optics 
    Bennett, Adam; Jourdain, Renaud; Kirby, Paul; MacKay, P.; Shore, Paul; Nicholls, John R.; Morantz, Paul (European Society for Precision Engineering and Nanotechnology, 2016-06-30)
    Activated plasma figuring using microwaves aims at providing highly efficient activated energy beams for rapid fabrication of optics. The chemical nature of this type of energy beam leads to targeting silicon-based ...
  • New potential for the Leitz Infinity Coordinate Measuring Machine 
    Sanz, Claude; Cherif, Ahmed; Mainaud-Durand, Hélène; Schneider, Jürgen; Steffens, Norbert; Morantz, Paul; Shore, Paul (Euspen, 2015-06-01)
    The following study is realised within the frame of the PACMAN project: a study on Particle Accelerator Components Metrology and Alignment to the Nanometre scale, which is a Marie Curie program supported by the European ...
  • A New Reactive Atom Plasma Technology (RAPT) for Precision Machining: the Etching of ULE® Surface 
    Fanara, C.; Shore, Paul; Nicholls, John R.; Lyford, N.; Kelley, J.; Carr, J.; Sommer, P. (John Wiley & Sons, Ltd, 2006-01-01)
    Results on reactive atom plasma etching performed on ULE® (Corning Ultra Low Expansion) glass samples at atmospheric pressure are presented for the first time. A reactive atomic plasma technology (RAPT®), has been developed ...
  • A novel accelerometer based feedback concept for improving machine dynamic performance 
    Abir, Jonathan; Morantz, Paul; Longo, Stefano; Shore, Paul (Elsevier, 2016-11-10)
    Small size ultra-precision Computer Numerical Control (CNC) machines require high dynamic performance. Flexible frame phenomena can limit the machine dynamic performance, particularly in small size machines. A novel ...
  • Optimized estimator for real-time dynamic displacement measurement using accelerometers 
    Abir, Jonathan; Longo, Stefano; Morantz, Paul; Shore, Paul (Elsevier, 2016-07-30)
    This paper presents a method for optimizing the performance of a real-time, long term, and accurate accelerometer based displacement measurement technique, with no physical reference point. The technique was applied in a ...
  • Position sensor for active magnetic bearing with commercial linear optical encoders 
    Tantau, Mathias; Morantz, Paul; Shore, Paul (Elsevier, 2021-05-19)
    Active magnetic bearings are used in a number of applications but their disadvantage is the high asynchronous error due to sensor noise amplification. In this paper a new radial position sensor for active magnetic bearings ...
  • Precision Engineering behind European Astronomy Programmes 
    Tonnellier, Xavier; Shore, Paul (2011-03-14)
    The fields of astronomy science have presented significant precision engineering challenges. Numerous solutions for these fields of science have achieved unprecedented levels of accuracy, sensitivity and sheer scale. ...
  • Precision grinding for rapid fabrication of segments for extremely large telescopes using the Cranfield BoX 
    Tonnellier, Xavier; Morantz, Paul; Shore, Paul; Comley, Paul (International Society for Optical Engineering; 1999, 2012-07-11)
    An ultra precision large optics grinding machine, BoX®, was developed and produced at Cranfield University. BoX® offers a rapid and economic solution for grinding large off-axis aspherical and free-form optical components. ...
  • Precision Grinding for Rapid Manufacturing of Large Optics 
    Tonnellier, Xavier (Cranfield University, 2009-05)
    Large scale nuclear fusion and astronomy scientific programmes have increased the demand for large freeform mirrors and lenses. Thousands of one metre class, high quality aspherical optical components are required within ...
  • Process characterisation and key tasks for cost-effective 3D figuring of specular surfaces using RAP 
    Jourdain, Renaud; Castelli, Marco; Shore, Paul (2010-06-01)
    Recently established the Helios 1200 (RaptTM ) is a unique facility designed for the figuring of large optical surfaces [1]. It combines a CNC machine tool with a reactive atom plasma (RAP) process. This provides a unique ...