Sensor for Measuring Strain in Textile

Sensors

Corinne Mattmann¹  Frank Clemens² 

[1] Wearable Computing Lab, ETH Zürich, Gloriastrasse 35, 8092 Zürich; E-mails:;EMPA Dübendorf, Überlandstrasse 129, 8600 Dübendorf; E-mail:

关键词: strain sensor;    textile integrated;    elastomer;   

DOI  :  10.3390/s8063719

来源: mdpi

【 摘 要 】

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%.

【 授权许可】

CC BY   
© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.