Department of Photonics, National Cheng Kung University, Tainan 701, Taiwan.
Department of Information and Communication, Kun Shan University, Tainan 710, Taiwan.
Sensors (Basel). 2020 Jan 27;20(3):699. doi: 10.3390/s20030699.
In this paper, we present a form of food security sensing using a waveguide antenna microwave imaging system through an example of an egg. A waveguide antenna system with a frequency range of 7-13 GHz and a maximum gain of 17.37 dBi was proposed. The maximum scanning area of the waveguide antenna microwave imaging sensing system is 30 × 30 cm. In order to study the resolution and sensitivity of the waveguide antenna microwave imaging sensing system, the circular and triangular high- materials (with the same thickness but with different dielectric constants of the materials) were used as the testing sample for observing the microwave images. By using the proposed waveguide antenna microwave imaging sensing system, the high- materials with different dielectric constants and shapes could be easily sensed. Therefore, the waveguide antenna microwave imaging sensing system could be potentially used for applications in rapid, non-destructive food security sensing. Regarding the example of an egg, the proposed waveguide antenna microwave imaging sensing system could effectively identify the health status of many eggs very quickly. The proposed waveguide antenna microwave imaging sensing system provides a simple, non-destructive, effective, and rapid method for food security applications.
本文通过鸡蛋的例子介绍了一种使用波导天线微波成像系统的食品安全感测形式。提出了一种频率范围为 7-13GHz、最大增益为 17.37dBi 的波导天线系统。波导天线微波成像感测系统的最大扫描面积为 30×30cm。为了研究波导天线微波成像感测系统的分辨率和灵敏度，使用圆形和三角形高材料（具有相同的厚度但材料的介电常数不同）作为测试样本，观察微波图像。通过使用所提出的波导天线微波成像感测系统，可以轻松感测具有不同介电常数和形状的高材料。因此，波导天线微波成像感测系统可潜在地用于快速、无损的食品安全感测应用。对于鸡蛋的例子，所提出的波导天线微波成像感测系统可以非常快速地有效地识别许多鸡蛋的健康状况。所提出的波导天线微波成像感测系统为食品安全应用提供了一种简单、无损、有效和快速的方法。
