Počet záznamů: 1
Computational approach to interference phase detection and linearity error correction in laser interferometry
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SYSNO ASEP 0426201 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Computational approach to interference phase detection and linearity error correction in laser interferometry Tvůrce(i) Řeřucha, Šimon (UPT-D) RID, ORCID, SAI
Šarbort, Martin (UPT-D) RID, ORCID, SAI
Buchta, Zdeněk (UPT-D) RID, SAI, ORCID
Číp, Ondřej (UPT-D) RID, SAI, ORCID
Lazar, Josef (UPT-D) RID, ORCID, SAICelkový počet autorů 5 Zdroj.dok. 21th annual International Conference on Advanced Laser Technologies ALT´13. Book of Abstracts. - Budva : University of Montenegro, 2013
S. 54Poč.str. 1 s. Forma vydání Online - E Akce ALT´13. Annual International Conference on Advanced Laser Technologies /21./ Datum konání 16.09.2013-20.09.2013 Místo konání Budva Země ME - Černá Hora Typ akce WRD Jazyk dok. eng - angličtina Země vyd. ME - Černá Hora Klíč. slova laser interferometry ; computational approach Vědní obor RIV BH - Optika, masery a lasery CEP GAP102/10/1813 GA ČR - Grantová agentura ČR ED0017/01/01 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EE2.3.30.0054 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy FR-TI2/705 GA MPO - Ministerstvo průmyslu a obchodu FR-TI1/241 GA MPO - Ministerstvo průmyslu a obchodu Institucionální podpora UPT-D - RVO:68081731 Anotace Although the laser interferometry represents the most precise class of techniques in the field of precise measurement of geometrical quantities, its wide use in measurement systems is still accompanied by many unresolved challenges. One of these challenges it the complexity of underlying optical systems that makes the interferometry systems very sensitive and expensive devices. We present a novel approach to the interference phase detection in homodyne laser interferometry that aims at reduction of the optical complexity while the resolution is preserved. Our method employs a series of computational steps to infer a pair of signals in quadrature that allows to determine the interference phase with a sub-nanometre resolution from an interference signal from a non-polarising interferometer sampled by a single photodetector. The data processing covers a the phase detection as well as several errorcorrection and scale linearization techniques. The complexity trade-off is the use of laser beam with frequency modulation capability. The method was experimentally evaluated on a Michelson interferometer-based free-space setup and its performance has been compared to a traditional homodyne detection method.The results indicate the method is a feasible alternative for the traditional homodyne detection since it performs with comparable accuracy (< 0.5nm standard deviation), especially where the optical setup complexity is principal issue and the modulation of laser beam is not a heavy burden, for instance in multi-axis measurement systems or laser diode based systems. Pracoviště Ústav přístrojové techniky Kontakt Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Rok sběru 2015
Počet záznamů: 1