| 基于无源RFID的混凝土湿度监测技术研究 |
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| 引用本文： | 苏圆圆,何怡刚,邓芳明,李兵,汪涛,童晋.基于无源RFID的混凝土湿度监测技术研究[J].电子测量与仪器学报,2016,30(8):1235-1243. |
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| 作者姓名： | 苏圆圆 何怡刚 邓芳明 李兵 汪涛 童晋 |
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| 作者单位： | 合肥工业大学电气与自动化工程学院 合肥230001 |
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| 基金项目： | 国家杰出青年科学基金(50925727)，国家自然科学基金(51577046)，国防科技计划项目(C1120110004)，教育部科学技术研究重大项目(313018)，安徽省科技计划重点项目(1301022036) |
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| 摘 要： | 湿度控制是混凝土早龄期控制开裂的重要措施,由于混凝土是有损多相复合材料,文中首先具体分析了电磁波在混凝土中的损耗,确定了标签可正常工作的基本条件,然后介绍了一种用于混凝土湿度监测的无源射频识别(RFID)传感器标签,该RFID传感器标签是基于超高频(UHF)的EPC-2通信协议,且工作于无源模式下,并具体介绍了传感器结构、接口电路和整流模块。后期实验对所设计的湿度传感器进行了性能测试,结果显示该湿度传感器具有良好的线性度和稳定性。与传统湿度测量的结构相比,所设计的无源RFID湿度传感标签具有低成本以及低功耗的特点。
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| 关 键 词： | 湿度传感器标签 射频识别 混凝土湿度检测 |
Research on online monitoring technology for concrete humidity based on passive RFID |
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| Su Yuanyuan,He Yigang,Deng Fangming,Li Bing,Wang Tao and Tong Jin.Research on online monitoring technology for concrete humidity based on passive RFID[J].Journal of Electronic Measurement and Instrument,2016,30(8):1235-1243. |
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| Authors: | Su Yuanyuan He Yigang Deng Fangming Li Bing Wang Tao and Tong Jin |
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| Affiliation: | School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230001, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230001, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230001, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230001, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230001, China and School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230001, China |
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| Abstract: | Humidity control is an important step to avoid cracking during concrete curing. Since the concrete is a lossy material, this paper analyzes the loss of electromagnetic wave transmitting in concrete and then achieves the working conditions of the radio frequency identification (RFID) sensor tag in concrete. Then a passive RFID sensor tag for concrete humidity monitoring is presented. The RFID sensor tag is based on EPC generation 2 ultra high frequency (UHF) communication protocol and operates in passive mode, then the architecture of the proposed passive humidity sensor tag, interface circuit and rectifier are introduced in detail. The performance of the proposed sensor tag is tested in later experiment. The results show that the proposed humidity sensor achieves high linearity and stability. Compared with the traditional measurements, the proposed passive RFID sensor tag has advantages of low cost and low power. |
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| Keywords: | humidity sensoring RFID concrete humidity measurement |
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