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Complementary Split-Ring Resonator-Loaded Microfluidic Ethanol Chemical Sensor
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DOI：10.3390/s16111802.png)
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摘要
En 中文
In this paper, a complementary split-ring resonator (CSRR)-loaded patch is proposed as a microfluidic ethanol chemical sensor. The primary objective of this chemical sensor is to detect ethanol's concentration. First, two tightly coupled concentric CSRRs loaded on a patch are realized on a Rogers RT/Duroid 5870 substrate, and then a microfluidic channel engraved on polydimethylsiloxane (PDMS) is integrated for ethanol chemical sensor applications. The resonant frequency of the structure before loading the microfluidic channel is 4.72 GHz. After loading the microfluidic channel, the 550 MHz shift in the resonant frequency is ascribed to the dielectric perturbation phenomenon when the ethanol concentration is varied from 0% to 100%. In order to assess the sensitivity range of our proposed sensor, various concentrations of ethanol are tested and analyzed. Our proposed sensor exhibits repeatability and successfully detects 10% ethanol as verified by the measurement set-up. It has created headway to a miniaturized, non-contact, low-cost, reliable, reusable, and easily fabricated design using extremely small liquid volumes.
Keyword:
ethanol sensor
microfluidic channel
complementary split ring resonator (CSRR)
patch
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IF:
3.5
论文数:
7.2W
被引数:
20.9W
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引用论文
Design and Application of the CSRR-Based Planar Sensor for Noninvasive Measurement of Complex Permittivity.png)
IEEE SENSORS JOURNAL
IEEE SENSORS JOURNALIF4.5
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