Split-Ring Resonator-Based Strain Sensor on Flexible Substrates for Glaucoma Detection

27th Micromechanics and Microsystems Europe Workshop

物理学;力学

Ekinci, Gizem^1 ; Yalcinkaya, Arda Deniz^1,2 ; Dundar, Gunhan^1 ; Torun, Hamdi^1

Department of Electrical and Electronics Engineering, Bogazici University, Bebek, Istanbul

34342, Turkey^1

Center for Life Sciences and Technologies, Bogazici University, Kandilli, Istanbul

34684, Turkey^2

关键词: Cellulose acetates;    Conductive paints;    Curvature profiles;    Flexible substrate;    Glaucoma detection;    Radius of curvature;    Split ring resonator;    Strain sensors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/757/1/012019/pdf
DOI  :  10.1088/1742-6596/757/1/012019

学科分类：力学，机械学

来源: IOP

【 摘 要 】

This paper presents split-ring resonator-based strain sensors designed and characterized for glaucoma detection application. The geometry of the sensor is optimized such that it can be embedded in a contact lens. Silver conductive paint is to form the sensors realized on flexible substrates made of cellulose acetate and latex rubber. The devices are excited and interrogated using a pair of monopole antennas and the characteristics of devices with different curvature profiles are obtained. The sensitivity of the device, i.e. the change in resonant frequency for a unit change in radius of curvature, on acetate film is calculated as -4.73 MHz/mm and the sensitivity of the device on latex is 33.2 MHz/mm. The results indicate that the demonstrated device is suitable for glaucoma diagnosis.