Wearable technologies for sweat rate and conductivity sensors: design and principles
Pietro Salvo
Jun 2013 · Anchor Academic Publishing (aap_verlag)
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83
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About this ebook
Wearable sensors present a new frontier in the development of monitoring techniques. They are of great importance in sectors such as sports and healthcare, as they permit the continuous monitoring of physiological and biological elements, such as ECG and human sweat. Until recently, this could only be carried out in specialized laboratories in the presence of cumbersome, and usually, expensive devices. Sweat monitoring sensors integrated onto textile substrates are not only part of a new field of work but, they also represent the first attempt to implement such an innovative idea on a system which will be worn directly on the body. The objective of this book is to present possible designs and technologies of low cost wearable sweat rate and conductivity sensors integrated onto a textile. The first chapter deals with a preliminary introduction on sweat production and composition, and the applications of wearable devices. Further, the second chapter describes the conductivity sensor, i.e. the geometry, materials and the coupling which includes a temperature sensor for precise measurements are discussed. This is followed by a chapter on the sweat rate sensor, and the technologies employed to fabricate it. Sensors that are based on a) conductive yarns coated with hydrophilic polymers, b) conductive polymer fibres, c) hydrophilic polymers between conductive fabrics and d) humidity sensors are described in detail. Finally, the last chapter provides a study of sweat production in different body areas, the calibration procedure, and summarizes the results which arise from the tests on volunteers.
About the author
Pietro Salvo obtained the M.Sc. degree in electronic engineering in 2004, and thereby, he specialized in biomedical science. In 2009, he obtained the Ph.D. in Automation, Robotics and Bioengineering from the University of Pisa, in Italy. From 2008 until 2009, he worked as a research associate at the Institute for the Conservation and Promotion of Cultural Heritage at the National Council of Research, in Florence, Italy. Currently, the author is a post-doctoral researcher at the Centre for Microsystems Technology (CMST) at the University of Ghent, in Belgium where he has been part of since 2009. The author’s research interests mainly include bioengineering and biomedical applications.
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