Current interests

Graham Machin's current research interests include contact and non-contact thermometry, high temperature fixed-points, primary radiometry, thermal imaging, primary thermometry through acoustic methods, clinical thermometry (contact, non-contact and internal), thermocouple developments (including self-validation methods) and temperature measurement in hostile environments.

Biography

Graham joined the Temperature Group at NPL in 1991 after completing his DPhil at the University of Oxford on the Physics of Compact Stellar Binary Systems. He has published more than 100 papers on temperature related issues and has given numerous invited lectures around the world. Graham has worked twice as an invited guest researcher at NMIJ (Japan) and also at NIM (China). He is the NPL representative on the BIPM Consultative Committee for Thermometry (CCT), chair of the CCT working group on radiation thermometry and a member of the CCT taskforce for the kelvin redefinition and CCT working group on temperature scales. He is also NPL's representative on Euramet TC Thermometry, chair of TCT strategy group and member of the Euramet TCT cmc review group.

He is a Fellow of both the Institute of Physics and the Institute of Measurement and Control. He currently holds visiting professorships at the University of Valladolid (UVa), Spain (Temperature Standards) and University of Glamorgan (Clinical Thermal Imaging) and is currently supervising two PhD students. At UVa, he teaches two graduate level courses on different aspects of temperature measurement. He was a contributing editor to the two-volume work 'Radiometric Temperature Measurement' published by Elsevier in 2010.

Selected publications

• A concerted international project to establish high temperature fixed-points for primary thermometry
  G. Machin, P. Bloembergen, J. Hartmann, M. Sadli and Y. Yamada
  Int. J. Thermophys., 28, pages 1976-1982 (2007)
• Report of the new Kelvin dissemination workshop: 27-28 Oct 2010
  G. Machin, D. del Campo, B. Fellmuth, J. Fischer, R. Gavioso, C. Lusher, A. Merlone, I. Mills, L. Pitre and M. de Podesta
  Metrologia, 48, pages 68-69 (2011)
• Calibration of intraparenchymal and body temperature sensors using organic triple-point references
  G. Machin and C. Childs
  J. Med. Eng. & Tech., 34, pages 192-199 (2010)
• Practical implementation of the mise-en-pratique for the definition of the kelvin above the silver point
  G. Machin, P. Bloembergen, K. Anhalt, J. Hartmann, M. Sadli, P. Saunders, E. Woolliams, Y. Yamada and H. Yoon
  Int. J. Thermophys., 31, pages 1779-1788 (2010)
• Estimation of the degree of equivalence of the ITS-90 above the silver point between NPL, NIM and CEM using high temperature fixed points
  G. Machin, W. Dong, M. J. Martín, D. Lowe, Z. Yuan, T. Wang and X. Lu
  Metrologia, 48, pages 196-200 (2011)
• Twelve years of high temperature fixed point research: a review
  G. Machin
  Invited keynote address at ITS9, USA, California, Mar 12
• Self-validating type C thermocouples using high temperature fixed points
  J. V. Pearce, C. J. Elliott and G. Machin
  At ITS9, USA California, Mar 12

Contact details

E-mail: graham.machin@npl.co.uk
Tel: 020 8943 6742