Home // SENSORCOMM 2022, The Sixteenth International Conference on Sensor Technologies and Applications // View article
Design of Knitted Pressure Sensors for Tactile Perception Applications
Authors:
Beyza Bozali
Sepideh Ghodrat
Joris van Dam
Kaspar Jansen
Keywords: pressure sensors; textile-based sensors; knitting
Abstract:
As an emerging technology, smart textiles attract a lot of interest in various fields in healthcare, sports, entertainment, etc. The new trend in smart textiles is to design sensor elements that are entirely textile-based consisting of conductive and non-conductive yarns which make the traditional sensor systems more comfortable and available for everyday use. In this study, stretchable knitted pressure sensors with different configurations and designs were produced by using commercial conductive yarns. By controlling the knit structure, the overall resistance can also be fine-tuned for practical pressure sensor applications. The impact of different knit densities and knit designs on the pressure sensing performance is investigated for tactile sensing and force distribution applications for flat-knitted and dome-like knitted sensors. Initial studies showed that the flat structures knitted less densely and in more stretcher knit designs result in better sensor performance with a sensitivity of 0.71 kPa−1 and within the pressure ranges of 0 to 0.71 kPa and a sensitivity of 0.13 kPa−1 within a pressure range of 0.70 to 2.5 kPa. This pressure sensor is knitted with the Rib 3x3 design and with a stitch length of 3 mm, and the response time of the sensor is measured as 220 msec. For dome-like pressure sensors, Rib 3x3 showed a relatively better sensitivity value. A practical application of these sensors can be for touch detection in human-computer interaction applications.
Pages: 1 to 4
Copyright: Copyright (c) IARIA, 2022
Publication date: October 16, 2022
Published in: conference
ISSN: 2308-4405
ISBN: 978-1-68558-005-6
Location: Lisbon, Portugal
Dates: from October 16, 2022 to October 20, 2022