%0 Journal Article
%T Novel Principle of Contactless Gauge Block Calibration
%A Zden¨§k Buchta
%A £¿imon £¿e£¿ucha
%A B£¿etislav Mikel
%A Martin £¿¨ª£¿ek
%A Josef Lazar
%A Ond£¿ej £¿¨ªp
%J Sensors
%D 2012
%I MDPI AG
%R 10.3390/s120303350
%X In this paper, a novel principle of contactless gauge block calibration is presented. The principle of contactless gauge block calibration combines low-coherence interferometry and laser interferometry. An experimental setup combines Dowell interferometer and Michelson interferometer to ensure a gauge block length determination with direct traceability to the primary length standard. By monitoring both gauge block sides with a digital camera gauge block 3D surface measurements are possible too. The principle presented is protected by the Czech national patent No. 302948.
%K low-coherence interferometry
%K gauge block
%K nanometrology
%U http://www.mdpi.com/1424-8220/12/3/3350