Precision positioning with suppression of the influence of refractive index of air
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F13%3A00421238" target="_blank" >RIV/68081731:_____/13:00421238 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2020529" target="_blank" >http://dx.doi.org/10.1117/12.2020529</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2020529" target="_blank" >10.1117/12.2020529</a>
Alternative languages
Result language
angličtina
Original language name
Precision positioning with suppression of the influence of refractive index of air
Original language description
We present an interferometric technique based on differential interferometry setup for measurement in the subnanometer scale in atmospheric conditions. One of the important limiting factors in any optical measurement are fluctuations of the refractive index of air representing a source of uncertainty traditionally compensated when the index is evaluated indirectly from the physical parameters of the atmosphere. Our proposal is based on the concept of overdetermined interferometric setup where a reference length is derived from a mechanical frame made from a material with very low thermal coefficient on the 1xE-8 level. The technique allows 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 trac
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JA - Electronics and optoelectronics
OECD FORD branch
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Result continuities
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
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Optical Measurement Systems for Industrial Inspection VIII (Proceedings of SPIE Vol. 8788)
ISBN
978-0-8194-9604-1
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
"878831:1"-"7"
Publisher name
SPIE
Place of publication
Bellingham
Event location
Munich
Event date
May 13, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000323493700114