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An ultra-wideband s...
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Ottosson, PatrikRadarbolaget, Gävle, Sweden
(författare)
An ultra-wideband system for measuring the dielectric properties of mineral compounds in a heat-reaction chamber at high temperatures
- Artikel/kapitelEngelska2023
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IEEE,2023
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LIBRIS-ID:oai:DiVA.org:hig-41588
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https://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-41588URI
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https://doi.org/10.1109/tim.2023.3265760DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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A measurement system for the measurement of microwave dielectric properties of mineral compounds at temperatures up to +1000°C is presented. It includes the simultaneous measurement of mass and temperature. Samples volumes in the range 0.01 to 0.1 m 3 can be studied. The system comprises a heat reaction chamber on a mass scale with mounted ultra-wideband (UWB) radio sensors and temperature probes. The complex refractive index is determined from the UWB signals using a technique with windowing to suppress interference and fitting of a modelled signal to the experimental ones. The developed method is validated by measuring the complex refractive index of water from +82°C down to +23°C and comparing with literature values. The systems is used to study calcination of limestone, i.e. the chemical decomposition of CaCO 3 to CaO and CO 2 when heated up to +1000°C. The chemical decomposition is clearly seen as a decrease in mass and as significant changes in the complex refractive index. The system could be used also for other mineral compounds and other types of materials.
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Andersson, DanielRadarbolaget, Gävle, Sweden
(författare)
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Choudhary, VipinHögskolan i Gävle,Elektronik(Swepub:hig)vinchy
(författare)
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Rönnow, DanielHögskolan i Gävle,Elektronik(Swepub:hig)dalrow
(författare)
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Radarbolaget, Gävle, SwedenElektronik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:IEEE Transactions on Instrumentation and Measurement: IEEE720018-94561557-9662
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