Surface topography measurement by frequency sweeping digital holography.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00484767" target="_blank" >RIV/61389021:_____/17:00484767 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1364/AO.56.007808" target="_blank" >http://dx.doi.org/10.1364/AO.56.007808</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/AO.56.007808" target="_blank" >10.1364/AO.56.007808</a>
Alternative languages
Result language
angličtina
Original language name
Surface topography measurement by frequency sweeping digital holography.
Original language description
High-precision measurements of mechanical parts' surface topography represent an essential task in many industry sectors. Examples of such tasks are, e.g., precise alignments of opto-mechanical systems, large object deformation measurements, evaluation of object shape, and many others. Today, the standard method used for such measurements is based on use of coordinate measuring machines (CMMs). Unfortunately, CMMs have severe shortcomings: low measurement point density, long measurement time, risk of surface damage, etc. Indeed, the measurement time rapidly increases with the object complexity and with the density of measurement points. In this paper, we have developed a method for surface topography measurements called 'frequency sweeping digital holography' (FSDH). Our developed FSDH method is based on the principles of wavelength scanning interferometry. It allows surface topography measurements of objects with a diameter of several hundred of mms and a high axial accuracy reaching 10 mu m. The greatest advantage of the presented FSDH is the fact that the surface topology data are captured in a motionless manner by means of a relatively simple setup. This makes the FSDH method a suitable technique for topography measurements of objects with complex geometries made of common materials (such as metals, plastics, etc.), as well as for the characterization of complex composite structures such as acoustic metamaterials, active acoustic metasurfaces, etc. Measurement method principles, setup details, lateral resolution, and axial accuracy are discussed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Optics
ISSN
1559-128X
e-ISSN
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Volume of the periodical
56
Issue of the periodical within the volume
28
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
7808-7814
UT code for WoS article
000412053200006
EID of the result in the Scopus database
2-s2.0-85030027833