Scholarlink

<p>A unique reflection-based microwave sensor that is consistent, practicable, and sensitive to changes in dielectric properties has been designed, built, and tested to detect mustard oil adulterated with palm and soyabean oil. The suggested sensor is based on a FR-4 substrate and has a magnitude of -50 dB at a resonance frequency of 4.33&#xa0;GHz. Two distinct brands of mustard oil are contaminated with palm and soyabean oils at amounts ranging from 5% to 50% by weight. The prepared samples were placed directly on the sensor, and its performance in simulated and experimental conditions was assessed. Based on the determined dielectric constants, the experiments and simulations yielded consistent results. The proposed sensor outperformed the previous designed sensors proposed in the literature, with a sensitivity value of 0.62 and 0.55 for brand 1st and 2nd mustard oil respectively. The proposed sensor is suitable for industrial and liquid chemical detection applications due to its high sensitivity, low cost, and accuracy.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A split ring resonator-based microwave sensor with high sensitivity for edible oil quality monitoring

  • 期刊论文

  • 发表日期：

    2026年1月18日

查看全文
  • Nitika Dhingra,
  • Sukhman Singh

摘要

A unique reflection-based microwave sensor that is consistent, practicable, and sensitive to changes in dielectric properties has been designed, built, and tested to detect mustard oil adulterated with palm and soyabean oil. The suggested sensor is based on a FR-4 substrate and has a magnitude of -50 dB at a resonance frequency of 4.33 GHz. Two distinct brands of mustard oil are contaminated with palm and soyabean oils at amounts ranging from 5% to 50% by weight. The prepared samples were placed directly on the sensor, and its performance in simulated and experimental conditions was assessed. Based on the determined dielectric constants, the experiments and simulations yielded consistent results. The proposed sensor outperformed the previous designed sensors proposed in the literature, with a sensitivity value of 0.62 and 0.55 for brand 1st and 2nd mustard oil respectively. The proposed sensor is suitable for industrial and liquid chemical detection applications due to its high sensitivity, low cost, and accuracy.