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Method and device for contactless level and interface detection
Agellis Group AB, Lund, Sweden.ORCID iD: 0000-0002-4826-019X
2006 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Method and apparatus for determining the thickness of material layers of a container-held substance comprising a first material disposed in an upper layer and a second material disposed in a lower layer, by transmitting a radio signal through the substance towards a container portion; receiving reflected signals from a surface of the upper layer, a surface of the second layer, and the container portion; varying the frequency of the transmitted signal to determine phase displacement between transmitted and reflected signals; determining optical distances to the surfaces and the container portion, dependent on the phase displacements; determining the thickness of one of said layers dependent on phase displacement through and index of refraction of that layer; and determining the thickness of the other layer dependent on the thickness of said one of said layers.

Place, publisher, year, edition, pages
2006.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-22992OAI: oai:DiVA.org:hh-22992DiVA: diva2:631034
Patent
US 8,044,843 B2 (2011-10-25)
Available from: 2013-06-20 Created: 2013-06-20 Last updated: 2016-03-11Bibliographically approved

Open Access in DiVA

fulltext(72 kB)56 downloads
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Type fulltextMimetype application/pdf

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Bååth, Lars B.

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CiteExportLink to record
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  • apa
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