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Sensors 2008, 8(6), 3719-3732;

Sensor for Measuring Strain in Textile

Wearable Computing Lab, ETH Zürich, Gloriastrasse 35, 8092 Zürich, Switzerland
EMPA Dübendorf, Überlandstrasse 129, 8600 Dübendorf, Switzerland
Author to whom correspondence should be addressed.
Received: 6 May 2008 / Revised: 20 May 2008 / Accepted: 21 May 2008 / Published: 3 June 2008
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Switzerland)
Full-Text   |   PDF [1921 KB, uploaded 21 June 2014]


In this paper a stain sensor to measure large strain (80%) in textiles is presented. It consists of a mixture of 50wt-% thermoplastic elastomer (TPE) and 50wt-% carbon black particles and is fiber-shaped with a diameter of 0.315mm. The attachment of the sensor to the textile is realized using a silicone film. This sensor configuration was characterized using a strain tester and measuring the resistance (extension-retraction cycles): It showed a linear resistance response to strain, a small hysteresis, no ageing effects and a small dependance on the strain velocity. The total mean error caused by all these effects was +/-5.5% in strain. Washing several times in a conventional washing machine did not influence the sensor properties. The paper finishes by showing an example application where 21 strain sensors were integrated into a catsuit. With this garment, 27 upper body postures could be recognized with an accuracy of 97%. View Full-Text
Keywords: strain sensor; textile integrated; elastomer. strain sensor; textile integrated; elastomer.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Mattmann, C.; Clemens, F.; Tröster, G. Sensor for Measuring Strain in Textile. Sensors 2008, 8, 3719-3732.

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