A ball diameter-measuring instrument in a gauge block interferometer

G.J.W.L. Kotte, H. Haitjema

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

4 Citations (Scopus)

Abstract

An instrument for the measurement of ball diameters in the 0.5-20 mm range in a gauge block interferometer is realized. The measurement principle is that the ball is positioned between an optical flat and a calibrated gauge block. The total length is measured in a gauge block relative to the optical flat and proper measurement of the deformations due to the measuring force. The parallelism is adjusted while viewing the interference patterns on the gauge block and the optical flat. The measuring force can be varied in the 0.03- 2.35 N range. The applied force is calibrated. Experiments show that commonly used formulas to calculate the ball indentation as a function of the applied force are approximately correct; this instrument however provides a direct means to measure this dependence and to apply a proper extrapolation to zero measuring force. The design is rather compact so it will fit in commonly used gauge block interferometers. The uncertainty which can be achieved is less than 0.1 micrometer.
Original languageEnglish
Title of host publicationRecent developments in optical gauge block metrology, 20 - 21 July 1998, San Diego, California
EditorsJ.E. Decker, N. Brown
Place of PublicationBellingham, Wash.
PublisherSPIE
Pages101-108
ISBN (Print)0-8194-2932-5
DOIs
Publication statusPublished - 1998
Eventconference; Recent developments in optical gauge block metrology -
Duration: 1 Jan 1998 → …

Publication series

NameProceedings of SPIE
Volume3477
ISSN (Print)0277-786X

Conference

Conferenceconference; Recent developments in optical gauge block metrology
Period1/01/98 → …
OtherRecent developments in optical gauge block metrology

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