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An ultra-wideband s...
An ultra-wideband system for measuring the dielectric properties of mineral compounds in a heat-reaction chamber at high temperatures
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- Ottosson, Patrik (författare)
- Radarbolaget, Gävle, Sweden
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- Andersson, Daniel (författare)
- Radarbolaget, Gävle, Sweden
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- Choudhary, Vipin (författare)
- Högskolan i Gävle,Elektronik
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- Rönnow, Daniel (författare)
- Högskolan i Gävle,Elektronik
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(creator_code:org_t)
- IEEE, 2023
- 2023
- Engelska.
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Ingår i: IEEE Transactions on Instrumentation and Measurement. - : IEEE. - 0018-9456 .- 1557-9662. ; 72
- Relaterad länk:
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https://doi.org/10.1...
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https://hig.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- calcination; dielectric permittivity; heat-chamber; High-temperature techniques; radio measurement; thermogravimetry; ultra-wideband; UWB
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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