Liao Chongwei, Zhang Weixin, Peng Yujie, Liu Changjun
School of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China.
Yibin Industrial Technology Research Institute of Sichuan University, Yibin 644000, China.
Sensors (Basel). 2025 Jun 28;25(13):4030. doi: 10.3390/s25134030.
In industrial production, high-power microwaves are commonly used for heating and drying processes; however, their application in measurement is relatively limited. This paper presents a power measurement system to enhance the use of microwave measurements in industry and improve the efficiency of microwave drying for PET particles. Operating at 2.45 GHz, the system integrates four-port power measurements based on the multilayer perceptron (MLP). By introducing residual connectivity, the residual network is determined to detect the height of PET particles. Experimental results show that this system can perform rapid measurements without needing a vector network analyzer (VNA), significantly improving the efficiency of microwave energy utilization in the early drying stages. Furthermore, the system offers practical and cost-efficient predictions for low-loss particulate materials. This power measurement strategy holds promising application potential in future industrial production.
在工业生产中，高功率微波通常用于加热和干燥过程；然而，它们在测量中的应用相对有限。本文提出了一种功率测量系统，以加强微波测量在工业中的应用，并提高PET颗粒微波干燥的效率。该系统工作在2.45 GHz，基于多层感知器（MLP）集成了四端口功率测量。通过引入残差连接，确定残差网络来检测PET颗粒的高度。实验结果表明，该系统无需矢量网络分析仪（VNA）即可进行快速测量，显著提高了早期干燥阶段微波能量利用的效率。此外，该系统为低损耗颗粒材料提供了实用且经济高效的预测。这种功率测量策略在未来工业生产中具有广阔的应用潜力。
