Change search
ReferencesLink to record
Permanent link

Direct link
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
National Category
Engineering and Technology
URN: urn:nbn:se:hh:diva-22992OAI: diva2:631034
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)28 downloads
File information
File name FULLTEXT01.pdfFile size 72 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Bååth, Lars B.
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 28 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 73 hits
ReferencesLink to record
Permanent link

Direct link