Complete Meniscus Removal Method for Broadband Liquid Characterization in a Semi-Open Coaxial Test Cell

Michał Kalisiak , Wojciech Wiatr


We present a new technique for broadband liquid characterization using a semi-open, vertically oriented test cell that is measured with a calibrated vector network analyzer in three states: the empty one and filled with two different volumes of the liquid under test. Using the measurements, we de-embed a transfer matrix representing a volume increment of the liquid sample and determine its column height with a novel closed-form formula. Thanks to the de-embedding, the method enables one, for the first time, to completely remove effects caused by a reproducible meniscus forming the top surface of a liquid tested in the cell and determine not only the propagation constant, but also characteristic impedance of the liquid sample, from which its permittivity and permeability are calculated. The results are highly consistent, because all the measurements are performed without disassembling the cell. We validate experimental results of the meniscus removal method by comparing them with reference data and outcomes of the Nicolson–Ross–Weir method.
Author Michał Kalisiak (FEIT / PE)
Michał Kalisiak,,
- The Institute of Electronic Systems
, Wojciech Wiatr (FEIT / PE)
Wojciech Wiatr,,
- The Institute of Electronic Systems
Journal seriesSensors, [SENSORS-BASEL], ISSN 1424-8220, (N/A 100 pkt)
Issue year2019
Publication size in sheets104.6
Keywords in English complex permittivity; permeability; microwave measurements; liquids; meniscus; vector network analyzer; network de-embedding
ASJC Classification1303 Biochemistry; 1602 Analytical Chemistry; 2208 Electrical and Electronic Engineering; 3107 Atomic and Molecular Physics, and Optics
ProjectResearch on measurement, circuit and signal theory and electronic circuits and systems. Project leader: Starecki Tomasz, , Phone: +48 22 234 7744; +48 22 234 3657, start date 01-09-2018, end date 30-09-2019, ISE/2018/DS, Completed
WEiTI Działalność statutowa
Languageen angielski
sensors-19-02092-v2.pdf 2.53 MB
Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 02-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.393; WoS Impact Factor: 2018 = 3.031 (2) - 2018=3.302 (5)
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