Highly Sensitive and Robust Metasurface-Inspired Microfluidic Sensor for Oil Detection

IF 4.3 2区 综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Qiang Zhang;Zhifei Kou;Jun Yang;Ying Li;Zhiping Yin;Guangsheng Deng
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引用次数: 0

Abstract

In this article, a low-cost, robust, and highly sensitive microfluidic sensor is proposed, leveraging a complementary split-ring resonator (CSRR) operating at microwave frequencies. The sensor design incorporates a U-shaped microfluidic tunnel within each unit cell structure, facilitating the identification of various liquid samples with minor dielectric constant variations through spectrum measurement. The measurement results indicate a resonant frequency shift of 1.54 GHz is achieved for a change in the dielectric constant of 1, and the capability of the microfluidic sensor in detecting several common oils is experimentally demonstrated. Moreover, a liquid constant temperature circulation system is included in this design, and the test error induced by the fluctuation of liquid temperature, which contributes to most of the measurement error, can be reduced significantly. Due to its robustness and high sensitivity, this passive metasurface-based microfluidic sensor provides promising potential for liquid sample detections with minor dielectric constant variations.
用于油检测的高灵敏度和鲁棒性超表面微流体传感器
在本文中,提出了一种低成本、鲁棒性和高灵敏度的微流体传感器,利用微波频率下的互补裂环谐振器(CSRR)。该传感器设计在每个单元胞结构内嵌入u型微流控通道,便于通过光谱测量识别介电常数变化较小的各种液体样品。测量结果表明,当介电常数为1时,微流体传感器的谐振频移达到1.54 GHz,并通过实验验证了微流体传感器对几种常见油类的检测能力。此外,本设计还设计了液体恒温循环系统,大大降低了液体温度波动引起的测试误差,而液体温度波动是测量误差的主要来源。由于其鲁棒性和高灵敏度,这种基于无源超表面的微流体传感器为微小介电常数变化的液体样品检测提供了广阔的前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IEEE Sensors Journal
IEEE Sensors Journal 工程技术-工程:电子与电气
CiteScore
7.70
自引率
14.00%
发文量
2058
审稿时长
5.2 months
期刊介绍: The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following: -Sensor Phenomenology, Modelling, and Evaluation -Sensor Materials, Processing, and Fabrication -Chemical and Gas Sensors -Microfluidics and Biosensors -Optical Sensors -Physical Sensors: Temperature, Mechanical, Magnetic, and others -Acoustic and Ultrasonic Sensors -Sensor Packaging -Sensor Networks -Sensor Applications -Sensor Systems: Signals, Processing, and Interfaces -Actuators and Sensor Power Systems -Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting -Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data) -Sensors in Industrial Practice
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