A Non-Invasive Method for Hydration Status Measurement With a Microwave Sensor Using Skin Phantoms

被引：15

作者：

Kilpijarvi, Joni ^{[1
]}

Tolvanen, Jarrkko ^{[1
]}

Juuti, Jari ^{[1
]}

Halonen, Niina ^{[1
]}

Hannu, Jari ^{[1
]}

机构：

[1] Univ Oulu, Microelect Res Unit, Fac Informat Technol & Elect Engn, FI-90014 Oulu, Finland

来源：

IEEE SENSORS JOURNAL | 2020年 / 20卷 / 02期

关键词：

Microwave sensors; biomedical monitoring; dielectric measurement; skin phantoms; health monitoring; DIELECTRIC-PROPERTIES; WATER;

D O I：

10.1109/JSEN.2019.2945817

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Fluid balance is important for a healthy human being. In this paper, a method to measure hydration status was developed and tested towards non-invasive measurement from human skin. Measurement of hydration status was performed by a microwave sensor utilizing a complementary split ring resonator (CSRR). The sensor was modeled, manufactured and then characterized by measuring tailor made skin phantoms based on the realistic electrical properties of skin with different degrees of hydration status. Qualitative longer term (>24 h) evaluation of the sensor was also performed by measuring polyester tissue that was drying over the time. Hydration status, represented by dehydrated, normal and hydrated skin phantoms, based on polyurethane with carbon and ceramic additives, was measured successfully by monitoring the changes in resonance frequency around 5.52 GHz. All results were compared to the dielectric reference measurements done by a commercial laboratory instrument.

引用

页码：1095 / 1104

页数：10

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