Planar sensor for powder grain characterisation

Coutinho, M. S.; Silva, Crislane Priscila N.; Oliveira, Mayara; Filho, H. V. H. Silva; Machado, G.G.; Melo, M. T. de

doi:10.1049/iet-map.2018.0138

Cited by 5 publications

(4 citation statements)

References 30 publications

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“…Materials have a specific dielectric permittivity at RF and microwave frequencies [18]; thus, a sample with a parallelepiped shape and dimensions of 38:3 × 38:3 × 3 mm is placed over the area occupied by the fractal resonator, where the highest concentration of electric field is found, and the permittivity is then varied from 1 to 100. With this configuration, any sample material can be simulated, through the variation of its permittivity.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

et al. 2020

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This paper presents a planar and compact microwave resonator sensor to characterize materials. The geometry of the resonator is based on the Sierpinski fractal curve and has four poles in the frequency range from 0.5 GHz to 5.5 GHz. Any of the four poles can be used to measure samples with low permittivity values, where the first pole is suitable for samples with high permittivity values. The sensitivity of the poles and return losses of the sensor are presented and obtained using a full-wave 3D simulator software. The device is manufactured and validated through a comparison between simulated and measured results.

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

et al. 2020

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“…Another design by Coutinho et al [46], design a microwave planar sensor with four poles of coupled resonators for characterization of powdered foods as shown in Figure 3…”

Section: Powder Materialsmentioning

confidence: 99%

Recent development of planar microwave sensor for material characterization of solid, liquid, and powder: a review

et al. 2022

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Microwave is the most popular sensor in industrial applications for detecting material characterization. Over the past decade, microwave sensor is high demand, especially in medical for detecting cancer in the human body, agriculture for detecting moisture of soil, and freshness in the food industry. The previous study has shown that the high demands of the microwave sensor in industrial applications make researchers always think of new ideas to design microwave sensors to improves accuracy and sensitivity. This paper reviews an investigation of material characterization of recent developments of a planar sensor for various contaminants and parameter value of solid, liquid, and powder as material under test (MUT). Planar resonator sensor enhances the weakness of conventional sensors in bulky size, required a large volume of samples, and high cost. This planar sensor will differentiate MUT properties based on scattering parameters at various operating frequencies. The framework presented in this review paper includes new developments in resonator structure as well as advanced design of potential future research work. Previous studies will be objectively analysed and compared in order to gain a better understanding of microwave resonant sensors and to develop innovative concepts to further enhance application research involving material characterization.

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“…Coutinho et al [20] presented a microwave planar sensor for dielectric properties characterization of grain, corn and wheat flour. The sensor is based on four coupled resonators designed to have four poles in the frequency range of 1-3 GHz shown in Fig.…”

Section: Microwave Sensing For Agricultural Productmentioning

confidence: 99%

“…Table 2 shows summary of the different types microwave sensing technique their appropriate use according to the material under test. Non-destructive [20] Transmission line rectangular waveguide Solid and semi-solid (e.g. potato powder, pseudo-ginseng powder, and rice husk ash) Destructive [7,21,22] Free space horn antenna Solid, semi-solid, and liquid (e.g.…”

Section: Microwave Sensing For Agricultural Productmentioning

confidence: 99%

A Review of Agricultural Product Characterization Using Microwave Sensor

Lee

You

Soh

et al. 2021

Lecture Notes in Electrical Engineering

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This paper presents a review on characterization of agricultural product using various type of microwave sensor. Interaction between EM waves with materials are described. Interaction between microwave and agricultural product are considering a wide range of frequencies and applications such as detection of dielectric properties, moisture content, heating mechanisms, and product control. Each of the Agricultural product has their unique dielectric properties, it can be characterized by frequency dependent parameters such as dielectric properties and moisture content. By analyzing the unique dielectric properties of the agricultural products, the moisture content and the heating mechanisms can be distinguished by measuring the changes in dielectric properties and concentration of agricultural products. Additionally, this paper also emphasis on a clear demarcation of open-ended coaxial probe, planar antenna, rectangular waveguide, and horn antennas as microwave sensor and their applications.

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Planar sensor for powder grain characterisation

Cited by 5 publications

References 30 publications

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

Recent development of planar microwave sensor for material characterization of solid, liquid, and powder: a review

A Review of Agricultural Product Characterization Using Microwave Sensor

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