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Detection of Low Sugar Concentration Solution Using Frequency Selective Surface (fss)

Computers, Materials & Continua 2022年第5期71卷 2869-2882页

作者： N.S.Ishak F.C.Seman N.Zainal N.A.Awang Faculty of Electrical and Electronics Engineering Universiti Tun Hussein Onn MalaysiaParit RajaBatu Pahat86400Malaysia Research Center for Applied Electromagnetics(EMcenter) The Institute of Integrated EngineeringUniversiti Tun Hussein Onn MalaysiaParit RajaBatu Pahat86400Malaysia Microelectronic and Nanotechnology-Shamsuddin Research Centre(MiNT-SRC) The Institute of Integrated EngineeringUniversiti Tun Hussein OnnParit RajaBatu Pahat86400Malaysia Photonics Devices and Sensor Research(PDSR) Faculty of Applied Science and Technology(FAST)Universiti Tun Hussein Onn Malaysia(Pagoh Campus)JorakBukit Pasir84500Malaysia

Sugar is important in daily food intake since it is used as food preservative and ***,is important to analyze the influence of sugar on the spectroscopic properties of the *** spectroscopy is proven to be useful and an efficient method for sugar detection as well as for future food quality ***,the lack of detection sensitivity in Terahertz Spectroscopy has prevented it from being used in a widespread spectroscopic analysis *** this paper,Frequency Selective Surface(fss)using the Terahertz Spectroscopy Time Domain Spectrum(THz-TDS)which operates at terahertz frequency range has been demonstrated for application of sugar *** fss is designed with a circle slot structure and has been optimized in line with the molecular resonance of glucose and fructose at different level concentration at 1.98 THz and 1.80 THz,*** magnitude of glucose and sucrose is inversely proportional with the level of sugar *** realization of the fss structure is using electron beam lithography and wet etching *** show that the fss performance for glucose and sucrose reveal fair shifts in measured transmission magnitude from its original in CST by approximately 30%.The use of fabricated fss with circle structure indicates that the concentration can be improved averagely at 25%for glucose and 13%for ***,it shows that the fss circle structure combined with THz-TDS has the potential to become an alternative method for food sensing technology in the future.

关键词： THz sensing fss circle structure sugar concentration

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