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
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