Measuring distances and displacements by an interferometric technique using a low-resolution miniature fiber optic spectrometer.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F02%3A20000009" target="_blank" >RIV/47813059:19240/02:20000009 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measuring distances and displacements by an interferometric technique using a low-resolution miniature fiber optic spectrometer.

Popis výsledku v původním jazyce

The feasibility of the technique utilizing the spectral-domain two-beam interference resolved by a low-resolution miniature fiber optic spectrometer is demonstrated in measuring distances and displacements when two different light sources are used. Firstwhen a low-coherence source, namely a multimode laser diode TOLD 9140 is used in the configuration of a dispersive Michelson interferometer, a cross-correlation procedure between the measured and the theoretical spectral interferograms is applied to estimate the group optical path differences (OPDs) between beams corresponding to different positions of one of the mirrors of the interferometer and needed in the displacement evaluations. Second, when a white-light source, namely a halogen lamp is usedin the configuration of a non-dispersive Michelson interferometer, the measured spectral interferograms are processed by a phase locked loop (PLL) method, which is a special simplified version of the general recurrence non-linear data process

Název v anglickém jazyce

Measuring distances and displacements by an interferometric technique using a low-resolution miniature fiber optic spectrometer.

Popis výsledku anglicky

The feasibility of the technique utilizing the spectral-domain two-beam interference resolved by a low-resolution miniature fiber optic spectrometer is demonstrated in measuring distances and displacements when two different light sources are used. Firstwhen a low-coherence source, namely a multimode laser diode TOLD 9140 is used in the configuration of a dispersive Michelson interferometer, a cross-correlation procedure between the measured and the theoretical spectral interferograms is applied to estimate the group optical path differences (OPDs) between beams corresponding to different positions of one of the mirrors of the interferometer and needed in the displacement evaluations. Second, when a white-light source, namely a halogen lamp is usedin the configuration of a non-dispersive Michelson interferometer, the measured spectral interferograms are processed by a phase locked loop (PLL) method, which is a special simplified version of the general recurrence non-linear data process

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/GA202%2F01%2F0077" target="_blank" >GA202/01/0077: Vlnovodné a magnetooptické reflexní jevy v tenkých vrstvách a nízkodimenzionálních systémech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Optical Techniques for Environmental Sensing, Workplace Safety, and Health Monitoring

ISBN

0-8194-4669-6

ISSN

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e-ISSN

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Počet stran výsledku

11

Strana od-do

77-88

Název nakladatele

SPIE-The International Society for Optical Engineering

Místo vydání

Bellingham

Místo konání akce

Warsaw

Datum konání akce

1. 1. 2001

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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