A novel sweat rate and conductivity sensor patch made with low-cost fabrication techniques

Conference paper (2020)

Authors

A.S.M. Steijlen Electronic Instrumentation -

J. Bastemeijer Electronic Instrumentation -

K.M.B. Jansen Emerging Materials -

P.J. French Bio-Electronics -

A. Bossche Electronic Instrumentation -

Research Group

Electronic Instrumentation () (TU Delft)

DOI: https://doi.org/10.1109/SENSORS47125.2020.9278850

Conductivity sensor Sweat patch Sweat rate sensor

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Published Date

2020

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronic Instrumentation

Abstract

Sweat sensor patches offer new opportunities for unobtrusive monitoring of an athlete’s physical status. This paper presents a novel sweat rate and sweat conductivity patch that is easy to prototype and can be made with common low-cost production techniques: laser cutting and standard printed circuit board (PCB) manufacturing. The device consists of a patch made from hydrophilic PET foil, a double-sided adhesive and a thin PCB with gold electrodes. Two electrodes, which are continuously in contact with the inflowing fluid, measure the sweat conductivity and a separate system with interdigitated electrodes measures the filling process of the reservoirs. Impedance measurement results of both systems demonstrate the working of the concept.

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