Fast Identification of Liquids Using Planar Metamaterial

Polevoy, Sergey; Vakula, Arthur; Nedukh, S. V.; Tarapov, S. I.

doi:10.1615/telecomradeng.v76.i3.40

Cited by 6 publications

(7 citation statements)

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“…As it was shown earlier [3][4][5], the metamaterial formed by two serially connected planar photonic crystals with some certain parameters possess a set of passbands and stopbands in the spectrum of transmission coefficient. The narrow resonance transmission peak, identified as electrodynamic analog of known "Tamm state", appears in one of stopbands of the transmittance spectrum of the metamaterial.…”

Section: Experimental Techniquementioning

confidence: 93%

“…1 [5]. It consists of the metamaterial in microstrip design, fitted to the Vector network analyzer N5230A for measuring the transmission coefficient of electromagnetic waves in the frequency range 9-10 GHz.…”

Section: Experimental Techniquementioning

confidence: 99%

“…During the experiment the resonance frequency f res of the peak and the inverse quality factor 1/Q are determined [5]. It was shown experimentally that when the liquid in container is placed into the resonance area at the interface of two PPCs the parameters of resonance peak start to vary.…”

Section: Experiments and Data Analysismentioning

confidence: 99%

“…Note that large losses in the liquid lead to a decrease of peak Q-factor, and the above-described curve is shifted up. Thus, rapid express analysis of the liquid may consist in the selection of such previously measured curve for the known liquid which most closely approaches the measured unknown liquid, which leads to its identification [5]. The influence of the wall thickness of the container with water on the shape of the dependence 1/Q and f res on the distance h var is given on Fig.…”

Section: Experiments and Data Analysismentioning

confidence: 99%

“…This prevents its introduction everywhere. A prospective alternative to this design is a metamaterial based on planar photonic crystals (PPC) [3][4][5]. It possesses the simplicity of fabrication, low cost, quite small dimensions, while maintaining sensitivity to the liquids identification.…”

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confidence: 99%

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Identification of liquids in different containers using a microwave planar metamaterial

Nedukh¹,

Polevoy²,

Tarapov³

et al. 2017

RADIOFIZ. ELEKTRON.

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At present, the fast contactless identification of liquids enclosed into a container has a practical importance. The identification of liquids can be required, for example, at airports, in order to prevent the transport of illicit liquids in bottles. However, the complexity of applying contactless methods lies in the difficulties to take into account the influence of container characteristics. In this paper, a metamaterial based on two planar photonic crystals (PPC) has been applied for the experimental analysis of liquids in different containers. It was shown experimentally how the transmission coefficient spectrum of PPC varied with changing the characteristics of a container with a liquid. Namely, the influence of thickness and material of the container walls and the inclination angle of its axis relative to the metamaterial plane on the transmission coefficient has been studied. The reliable differing of concentration increments of edible salt and sugar in water was determined as 10 %. It is shown that an increase of the container walls thickness leads to a decrease of the reliability of the liquid identification in it. Thus, the influence of some container characteristics on the reliability of contactless identification of liquids by using PPC has been taken into account.

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Section: Experimental Techniquementioning

confidence: 93%

Section: Experimental Techniquementioning

confidence: 99%

Section: Experiments and Data Analysismentioning

confidence: 99%

Section: Experiments and Data Analysismentioning

confidence: 99%

mentioning

confidence: 99%

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