E F Howick et al 2003 Metrologia 40 139 doi:10.1088/0026-1394/40/4/301
E F Howick1, L R Watkins2 and S M Tan2
Show affiliationsThis paper describes improvements to a Hilger gauge block interferometer, including a fibre optic feed for a traceable laser radiation, use of a CCD camera for computer-controlled acquisition of fringe images and automatic analysis of the fringe image to obtain the fringe fraction. The gauge measuring process is now automated, computer-controlled, more accurate and significantly faster and easier to operate than the original design.
Issue 4 (August 2003)
Received 26 August 2002
Published 13 June 2003
E F Howick et al 2003 Metrologia 40 139
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