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RF MEMS Resonance Sensor for Measuring Microplastics Concentration

2022 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM) 2022 6 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
J. H. Kim, J. H. Kim, K. H. Lee, C. U., Yoonki Hong

Summary

Researchers designed an RF MEMS resonance sensor capable of detecting microplastics in water at low cost, offering a practical alternative to expensive conventional particle analyzers for environmental monitoring.

Recently, microplastics have become a big problem, but conventional particle analyzers that can detect microplastics require a lot of time and cost, so in this paper, in order to solve this issue, a low-cost RF sensor was designed to detect microplastics. The proposed MEMS sensor consists of a microfluidic structure and an LC resonator. First, it is a principle of collecting microplastics through a microfluidic structure and measuring the concentration of microplastics using an LC resonance structure. Through the structure, it was confirmed that the concentration of 0.001% unit could be detected, and a circuit that could identify not only the concentration but also the type of substance was proposed.

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