Characterization of capacitive-type epidermal moisture measurements using disposable printed electrode films. (3rd August 2021)

• Record Type: Journal Article
• Authors: Iwata, Shiro; Kusaka, Yasuyuki; Abe, Souichiro; Kato, Nobuyuki; Kanayama, Masahiro; Imawaka, Naoto; Ushijima, Hirobumi
• Is Part Of: Flexible and printed electronics. Volume 6:Number 3(2021)
• Publication Date: 2021-08-03
• Subjects: printed electronics -- capacitive sensor -- epidermal moisture measurement -- screen-printing -- comb-shaped electrode; Flexible electronics -- Periodicals; Printed electronics -- Periodicals; Flexible electronics; Printed electronics; Electronic journals; Periodicals; 621.381
• DOI: 10.1088/2058-8585/ac1244
• Languages: English
• ISSNs: 2058-8585

Abstract

Abstract: This paper addresses the characteristics of capacitive-type epidermal moisture measurements using disposable electrode films fabricated by a screen-printing method. The disposable electrode films were composed of substrates, comb-shaped electrode layers, and insulating layers. The epidermal moisture measurement obtained higher gain by optimization of the finger width of the comb-shaped electrode layer. The gain and accuracy of measurements were also improved by changing the insulating layer that covered the comb-shaped electrode layer to the striped-pattern type instead of the conventional solid-filling type. This epidermal moisture measuring instrument reduces the cleaning process of the electrode film that directly contacts the skin, simplifies the handling of the devices, and ensures hygienic operation.