Precise optical differential thermometer sensor based on interferometric measurement of thermal expansion coefficient

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F14%3A00217824" target="_blank" >RIV/68407700:21230/14:00217824 - isvavai.cz</a>

Výsledek na webu

<a href="http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1873850" target="_blank" >http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1873850</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2054346" target="_blank" >10.1117/12.2054346</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Precise optical differential thermometer sensor based on interferometric measurement of thermal expansion coefficient

Popis výsledku v původním jazyce

Knowing a thermal expansion coefficient and measured exact thermal expansion, it is possible to design a very sensitive sensor measuring temperature differential. A Michelson interferometer is used to determine temperature changes. It measures linear expansion on a metal object, e.g. a copper rod, as a change in length in response to a change in temperature. Based on the obtained interferograms and knowing the value of thermal expansion coefficient, temperature differential can be calculated. The accuracy of the procedure can be determined by using the exact differential method based on the measurement errors for linear expansion, and initial length. The contribution of this paper is the employment of Michelson interferometer to design a very sensitivedifferential thermometer measuring with the accuracy of one thousandth degree Celsius. It results from the achieved precision of measuring the optical path length changes in the range of hundreds nanometers. The advantage of this sensor

Název v anglickém jazyce

Precise optical differential thermometer sensor based on interferometric measurement of thermal expansion coefficient

Popis výsledku anglicky

Knowing a thermal expansion coefficient and measured exact thermal expansion, it is possible to design a very sensitive sensor measuring temperature differential. A Michelson interferometer is used to determine temperature changes. It measures linear expansion on a metal object, e.g. a copper rod, as a change in length in response to a change in temperature. Based on the obtained interferograms and knowing the value of thermal expansion coefficient, temperature differential can be calculated. The accuracy of the procedure can be determined by using the exact differential method based on the measurement errors for linear expansion, and initial length. The contribution of this paper is the employment of Michelson interferometer to design a very sensitivedifferential thermometer measuring with the accuracy of one thousandth degree Celsius. It results from the achieved precision of measuring the optical path length changes in the range of hundreds nanometers. The advantage of this sensor

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

<a href="/cs/project/VG20102015053" target="_blank" >VG20102015053: Moderní struktury fotonických senzorů a nové inovativní principy pro detekci narušení integrity systémů a ochranu kritických infrastruktur - GUARDSENSE</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Optical Sensing and Detection III

ISBN

9781628410891

ISSN

—

e-ISSN

—

Počet stran výsledku

9

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Brusel, Belgie

Datum konání akce

14. 4. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000343125200057