![Tensile Test
Cyclic tensile (ε= 13-30%) test on woven elastic band (L0= 25mm)
with 2 integrated piezoresistive sensor fibres
0.7 30
0.5 25
0.3 20
Resistance [kΩ]
Force [N]
0.1 15
13
-0.1 10
11 Relaxation
-0.3 5 of 2nd cycle:
1%
9
-0.5 0
0 100 200 300 400 500 600 700 800
Force Resistance Time [s] 7
5
100 150 200 250
May 13, 2011 G. Tröster 9/1](https://image.slidesharecdn.com/troester13-5-11-111122050129-phpapp02/85/TecInTex-9-320.jpg)
TecInTex
- 1. TecInTex: Technology Integration into Textiles: Empowering Health Gerhard Tröster
- 2. Structure • Partners – ETH Zürich (G. Tröster: Electronics Lab) – EMPA St Gallen, Dübendorf (R.Rossi, M.Heuberger, F. Clemens) – CSEM Neuchatel (S.Pasche, J. Luprano) – University Hospital Zurich (M. Wolf) – Paraplegic Center Nottwil (U.Baumberger) – industrial partners May 13, 2011 G. Tröster 2/1
- 3. Mission of TecInTex: Provide the core modules to design and to manufacture sensing and acting textiles From fibres to clothes to people Fibres Fabrics Clothes Evaluation May 13, 2011 G. Tröster 3/1
- 4. ‚Healthcare Demonstrators‘ • NIRS (Near Infrared Spectroscopy) in socks images O2 enough O2 – Early detection and lack of O2 Detector treatment of peripheral vascular disease (PVD) Light Source • ‚Intelligent‘ underwear for paraplegic people to prevent and to treat ulcer High decubitus risk May 13, 2011 G. Tröster 4/1
- 5. Highlights • Fibers e & o – protection – insulation – sensing • Woven electronics May 13, 2011 G. Tröster 5/1
- 6. PU coatings of silver fibres 2.5 coating thickness (microns) 2 Coating Thickness- 1.5 Coatings thicker than 2 2.5 to 3 microns microns have 1 resistance > 1 MΩ 0.5 Resistance (Ω/cm) 0 0 5000 10000 15000 20000 25000 30000 35000 May 13, 2011 G. Tröster 6/1
- 7. Layer-by-Layer Coating + Primer Polyanhydride Polyamine Activated Fatty Acid PVAm,(protective) PEI Silver Gantrez PVAm (protective) Silver pure ( corroded) PEI Silver PScMAA May 13, 2011 G. Tröster 7/1
- 8. Piezoresistive strain sensor fiber May 13, 2011 G. Tröster 8/1
- 9. Tensile Test Cyclic tensile (ε= 13-30%) test on woven elastic band (L0= 25mm) with 2 integrated piezoresistive sensor fibres 0.7 30 0.5 25 0.3 20 Resistance [kΩ] Force [N] 0.1 15 13 -0.1 10 11 Relaxation -0.3 5 of 2nd cycle: 1% 9 -0.5 0 0 100 200 300 400 500 600 700 800 Force Resistance Time [s] 7 5 100 150 200 250 May 13, 2011 G. Tröster 9/1
- 10. O-Fiber: Polymeric Optical Fibers (POF) • Glas PMMA Poly(methyl methacrylate) too brittle and too thick ( > 250μm) therapy lighting POF sensing May 13, 2011 G. Tröster 10/1
- 11. Melt-Spinning Equipment for Bi-component Fiber May 13, 2011 G. Tröster 11/1
- 12. First Bi-component Fiber Oct/Nov 2010 Dec 2010 Light attenuation: 47 dB/m Light attenuation: <10dB/m May 13, 2011 G. Tröster 12/1
- 13. Biosensing using optical Fibers • Monitoring of pH and protease activity in chronical wounds May 13, 2011 G. Tröster 13/1
- 14. Principle • Sensing layer around the fiber: sol-gel • pH dyes, change in light absorbance May 13, 2011 G. Tröster 14/1
- 15. Flexible polymer optical fibers (POF) for biosensing Sol-gel coated POF 150 µm polymer fiber May 13, 2011 G. Tröster 15/1
- 16. E-Stripes: Thin film technology into textiles • Planar thinfilm technology – Sensors – Transistors – Integrated circuits • Small (< 0.5mm) stripes woven into textiles May 13, 2011 G. Tröster 16/1
- 17. Weaving Machine May 13, 2011 G. Tröster 17/1
- 18. Mechanical strain during Weaving R = 165µm Electronic fiber 200µm May 13, 2011 G. Tröster 18/1
- 19. IGZO-TFTs : bendable ? May 13, 2011 G. Tröster 19/1
- 20. VDD In Out Amplifier Rf TFT Out Rl Rf In TFT GND VDD 1 mm May 13, 2011 G. Tröster 20/1
- 21. CO Sensor Polyanaline based May 13, 2011 G. Tröster 21/1
- 22. Challenges • Adaptation to industrial manufacturing processes • Design of the demonstrator – clinical environment – biocompatibility approval – ethics May 13, 2011 G. Tröster 22/1