Active angular alignment of gauge blocks in double-ended interferometers

0397641 - ÚPT 2014 RIV CH eng J - Journal Article
Buchta, Zdeněk - Řeřucha, Šimon - Hucl, Václav - Čížek, Martin - Šarbort, Martin - Lazar, Josef - Číp, Ondřej
Active angular alignment of gauge blocks in double-ended interferometers.
Sensors. Roč. 13, č. 10 (2013), s. 13090-13098. E-ISSN 1424-8220
R&D Projects: GA ČR GP102/09/P293; GA ČR GAP102/10/1813; GA MŠMT ED0017/01/01; GA MŠMT(CZ) LC06007; GA TA ČR(CZ) TA03010663
Institutional support: RVO:68081731
Keywords : low-coherence interferometry * gauge block * metrology
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 2.048, year: 2013

This paper presents a method implemented in a system for automatic contactless calibration of gauge blocks designed at ISI ASCR. The system combines low-coherence interferometry and laser interferometry, where the first identifies the gauge block sides position and the second one measures the gauge block length itself. A crucial part of the system is the algorithm for gauge block alignment to the measuring beam which is able to compensate the gauge block lateral and longitudinal tilt up to 0.141 mrad. The algorithm is also important for the gauge block position monitoring during its length measurement.
Permanent Link: http://hdl.handle.net/11104/0225256