Design for Robustness and Cost Effectiveness: The Case of an Optical Profilometer

  • Baldi, Antonio (Department of Mechanical Engineering, University of Cagliari) ;
  • Pedone, Paola (Department of Mechanical Engineering, University of Cagliari) ;
  • Romano, Daniele (Department of Mechanical Engineering, University of Cagliari)
  • Published : 2006.04.01

Abstract

The paper presents the design of an optical profilometer, a device used for the reconstruction of the micro-geometry of mechanical parts in applications where high precision is needed. The design is based on Robust Design, a major' methodology for quality improvement of engineering systems. Several design solutions, namely different hardware and software setups of the device, are compared in order to select a configuration realising a desired trade-off between performance and cost. The peculiarity of the design strategy is the use of a computer model of the measurement process where the physical part of the process is simulated. This allows for an extensive exploration of the design space, thus opening the way to product innovation.

Keywords

References

  1. Baldi, A., Leban, B., Ginesu, F., Jacquot, P.(2003), 'Sulla ricostruzione di superfici di interesse meccanico tramite interferometria in luce bianca,' AlAS Conference Proceeding
  2. De Groot, P.(1995), 'Vibration in phase-shifting interferometry,' J. Opt. Soc. Am., Vol. 12, pp. 354-365 https://doi.org/10.1364/JOSAA.12.000354
  3. Dorrio, B., and Fernandez, J.(1999), 'Phase-evaluation methods in whole-field optical measurement techniques,' Meas. Sci. Technol. Vol. 10, pp. R33-R55 https://doi.org/10.1088/0957-0233/10/3/005
  4. Myers, R. H., and Montgomery, D.C.(1995), Response Surface Methodology: Process and Product Optimization Using Designed Experiments, John Wiley and Sons, New York, NY
  5. Nair, V.N., Ed.(1992), 'Taguchi's Parameter Design: A Panel Discussion,' Technometrics, Vol. 34, No.2, pp. 127-161 https://doi.org/10.2307/1269231
  6. Robinson, D. W., and Reid, G.(1993), Interferogram Analysis, IOP Publishing, Bristol and Philadelphia
  7. Romano, D., Varetto, M., Vicario, G.(2004), 'A General Framework for Multiresponse Robust Design based on Combined Array,' Journal of Quality Technology, Vol. 36, No. 1, American Society for Quality, Milwaukee, Wisconsin (USA), pp. 27-37 https://doi.org/10.1080/00224065.2004.11980250
  8. Roy, M., Svahn, P., Cherel, L., Sheppard, C.(2001), 'Geometric phase-shifting for low-coherence interference microscopy,' Optics and Lasers in Engineering, No. 37, pp. 631-641
  9. ThorLabs catalog sales(2005), Vol. 17