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Development of Underwear with Integrated 12 Channel ECG for Men and Women

Trummer S., Ehrmann A., Büsgen A.

Autex Research Journal

2017

Vol. 17, no. 4

344--349

Cardiovascular diseases are the most frequent cause of death worldwide. Cases of cardiac arrest can often be attributed to undetected cardiac arrhythmia. Detecting rare episodes of arrhythmia necessitates long-term ECG measurements along days or weeks. However, due to the relatively small number of electrodes used for these ECGs, abnormal episodes can still go unrecognized. This article thus describes the development of underwear with ten inbuilt textile ECG electrodes, allowing for the measurement of long-term 12-lead ECG. As against the constructs of other research groups, the position of electrodes offers the same detection directions as the common 12-lead ECG equipment in hospitals or medical practices. Long-term tests have shown the suitability of the sensory underwear variants for men and women to detect reliable ECG signals without disturbing the patients’ comfort.

An investigation of the quality of the conductive lines deposited by inkjet printing on different substrates

Sitek J., Futera K., Belavič D., Santo Zarnik M., Kościelski M., Bukat K., Janeczek K., Kuščer Hrovatin D., Jakubowska M.

Elektronika : konstrukcje, technologie, zastosowania

2012

Vol. 53, nr 1

32-34

In this paper an investigation of the quality of inkjet-printed conductive lines deposited on different substrates is presented. Three different types of ceramic substrates as well as an ink based on nanosilver powder were used for investigations. It was found that the inkjet-printing deposition on green tape LTCC and then co-firing with the conditions of an LTCC temperature profile is not a usable technology. More promising results on prefired LTCC and alumina substrates were obtained, but some additional efforts are required to improve the quality of the lines.

W artykule przedstawiono badania jakości ścieżek przewodzących wytworzonych metodą druku strumieniowego na różnych podłożach. W badaniach użyto trzech różnych typów podłoży ceramicznych oraz tuszu opartego na nanoproszku srebra. Stwierdzono, że wytwarzanie ścieżek przewodzących, poprzez ich nadruk na podłoże z surowej taśmy ceramicznej LTCC i następnie ich wypalenie z użyciem profilu stosowanego dla LTCC jest nietechnologiczne. Bardziej obiecujące wyniki uzyskano dla wstępnie wypalonego podłoża LTCC oraz podłoża z ceramiki alundowej. Konieczne są jednak dalsze prace celem polepszenia jakości ścieżek na tych podłożach.

Generation of micro-sized conductive lines on glass fibre fabrics by inkjet printing

Irurzuna U. B., Dutschka V., Calvimontes A., Akkerman R.

Autex Research Journal

2012

Vol. 12, no. 2

55--61

Micro-sized lines were inkjet printed on glass fibre fabrics using different droplet spacing. A conductive ink containing silver nanoparticles was used in this study. Glass fibre fabrics were differently pre-treated to avoid spontaneous spreading of the ink dispersion. The sample topography was examined using scanning electron, optical and confocal microscopy with a chromatic sensor. Printability conditions were discussed based on the results of topographic characterization and wettability measurements.