Refractive Index Compensation in Over-Determined Interferometric Systems

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F12%3A00385287" target="_blank" >RIV/68081731:_____/12:00385287 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3390/s121014084" target="_blank" >http://dx.doi.org/10.3390/s121014084</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/s121014084" target="_blank" >10.3390/s121014084</a>

Result language

angličtina

Original language name

Refractive Index Compensation in Over-Determined Interferometric Systems

Original language description

We present an interferometric technique based on a differential interferometry setup for measurement under atmospheric conditions. The key limiting factor in any interferometric dimensional measurement are fluctuations of the refractive index of air representing a dominating source of uncertainty when evaluated indirectly from the physical parameters of the atmosphere. Our proposal is based on the concept of an over-determined interferometric setup where a reference length is derived from a mechanical frame made from a material with a very low thermal coefficient. The technique allows one to track the variations of the refractive index of air on-line directly in the line of the measuring beam and to compensate for the fluctuations. The optical setup consists of three interferometers sharing the same beam path where two measure differentially the displacement while the third evaluates the changes in the measuring range, acting as a tracking refractometer. The principle is demonstrated i

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

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

Name of the periodical

Sensors

ISSN

1424-8220

e-ISSN

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Volume of the periodical

12

Issue of the periodical within the volume

10

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

14084-14094

UT code for WoS article

000310507800062

EID of the result in the Scopus database

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