Measurement of high power
The result's identifiers
Result code in 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>
Result on the web
<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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Alternative languages
Result language
angličtina
Original language name
Measurement of high power
Original language description
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.
Czech name
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Czech description
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Classification
Type
V<sub>souhrn</sub> - Summary research report
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/8B16005" target="_blank" >8B16005: Development of RF and microwave metrology capability</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Number of pages
27
Place of publication
Ljubljana, Slovenia
Publisher/client name
EURAMET
Version
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