Measurement of high power

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F19%3AN0000087" target="_blank" >RIV/00177016:_____/19:N0000087 - isvavai.cz</a>

Výsledek na webu

<a href="http://rfmw.cmi.cz/index.php/download/54-bpguides.html" target="_blank" >http://rfmw.cmi.cz/index.php/download/54-bpguides.html</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of high power

Popis výsledku v původním jazyce

RF&MW Power traceability is established at mW levels using microcalorimeters as reference devices. They are used mainly by NMIs to calibrate thermistors, thermal or diode power sensors which are then used by calibration laboratories for traceable measurements and calibrations of RF&MW power. These sensors are upward limited to power levels which can be directly measured, which is typically about up to 100mW or 1W (+20 dBm to +30dBm). To be able to measure higher powers up to kW range in a traceable manner, additional reference attenuators and/or couplers have to be used to lower the level suitably for measurements using traceable mW range power sensors. Those reference attenuators and couplers have to be traceably calibrated and their influence considered when measuring power and calculating measurement uncertainty. This guide will show on how to use mW range power sensors and reference attenuators or couplers to measure high power in a traceable manner and show uncertainty calculation for different cases. The guide will show how calculations and corrections can be considered if complex values are available for reference equipment together with the estimation of uncertainty and also for cases when only magnitudes for reference equipment is calibrated or known.

Název v anglickém jazyce

Measurement of high power

Popis výsledku anglicky

RF&MW Power traceability is established at mW levels using microcalorimeters as reference devices. They are used mainly by NMIs to calibrate thermistors, thermal or diode power sensors which are then used by calibration laboratories for traceable measurements and calibrations of RF&MW power. These sensors are upward limited to power levels which can be directly measured, which is typically about up to 100mW or 1W (+20 dBm to +30dBm). To be able to measure higher powers up to kW range in a traceable manner, additional reference attenuators and/or couplers have to be used to lower the level suitably for measurements using traceable mW range power sensors. Those reference attenuators and couplers have to be traceably calibrated and their influence considered when measuring power and calculating measurement uncertainty. This guide will show on how to use mW range power sensors and reference attenuators or couplers to measure high power in a traceable manner and show uncertainty calculation for different cases. The guide will show how calculations and corrections can be considered if complex values are available for reference equipment together with the estimation of uncertainty and also for cases when only magnitudes for reference equipment is calibrated or known.

Druh

V_souhrn - Souhrnná výzkumná zpráva

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/8B16005" target="_blank" >8B16005: Development of RF and microwave metrology capability</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Počet stran výsledku

27

Místo vydání

Ljubljana, Slovenia

Název nakladatele resp. objednatele

EURAMET

Verze

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