Holographic interferometry as a tool for visualization of temperature fields in air

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F13%3A%230005574" target="_blank" >RIV/46747885:24210/13:#0005574 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Holographic interferometry as a tool for visualization of temperature fields in air

Original language description

Measurement of temperature field in moving fluids is connected with many difficulties. Usage of point temperature measurement methods, such as Constant Current Anemometry (CCA), is limited to frequencies up to 3 kHz. This frequency should be the limitingfactor for using the CCA in fluid when fast change of temperature occurs. This shortcoming of CCA measurements should be overcome by using of optical methods such as Digital Holographic Interferometry (DHI). It is necessary to employ a special holographic setup with double sensitivity instead of the commonly used Mach-Zehnder type of holographic interferometer in order to obtain the parameters sufficient for the studied cases. This setup is not light efficient like the Mach-Zehnder type but has doublesensitivity. The article also shows the method of synchronization and the method for phase averaging of the acquired data. The presented DHI is based on a modified Twymann-Green setup.

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

JE - Non-nuclear power engineering, energy consumption and utilization

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

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

Name of the periodical

Engineering Mechanics

ISSN

1802-1484

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

3/4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

8

Pages from-to

205-212

UT code for WoS article

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EID of the result in the Scopus database

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