This EeonTex fabric is a conductive, nonwoven microfiber with piezo-resistive functionality for use in dynamic sensors to map and measure pressure, bend, angle stretch and torsion. Each sheet of the EeonTex Pressure Sensing Fabric is pre-cut into 12 inch by 13 inch sheets about 0.8mm thick. This fabric is unique and perfect for anyone interested in wearables and e-textiles.
EeonTex Pressure Sensing Fabric is highly conductive with a surface resistivity of 2K Ohm/sq. Additionally, it features a dynamic range of 5g to 100kg, as well as a data acquisition rate of 500 cycles per second.
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Skill Level: Competent - You might need to break out the power tools. Nothing beyond a power drill or rotary tool should be required, but you might have a hard time with just a screwdriver and hammer. Cutting holes into plastic or metal might be required.
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Based on 4 ratings:
Worked as described, just remember the resistant is determined by the length.
maybe too short range of responsivity, as for my needs.
I honestly haven't had a chance to try this fabric out yet, but given how difficult it was to get a hold of (only sold wholesale) up until now, I am ecstatic that it is being sold on sparkfun.com, and thank you thank you thank you for retailing it.
I used this pressure sensitive fabric between to conductive fabric layers as a punch sensor. It easy to cut and handle and works great. I tried to sew this with a sewing machine, but it put too much pressure on the fabric. Had to sew very lightly just on each corner by hand.
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This stuff looks very interesting but much more information please, maybe a sample project? Plus the data sheet that you link to says nothing useful at all.
Can you cut it into small pieces? What interface?
I am thinking about using it for an array of button sensors for a midi controller.
I posted an example project right below your comment.
I am very interested in this product, but I see that it is not available
Is there any way to buy this product?
I wrote an instructables using this material. If I get around to it, I'd like to add instructions for a more basic version, but you can get an idea of how to work with this stuff here: http://www.instructables.com/id/ETextile-Electronics-Differential-Pressure-Sensor/
Can I cut this into smaller pieces? If yes - any important instructions?
Sure you can. No restrictions.
Check out the instructable I linked to above.
I just got this, and when I connect a strip (about 1cm x 5cm) of this to a multimeter and check the resistance, the values seem to change even when nothing else is touching it. And when I turn the multimeter on and off, the resistance is very different, at least 5K ohms difference. Why is this happening and is there anything I can do to fix it? I plan to use a voltage divider and connect it to an Ardulno. Maybe that will fix the problem? Thanks.
The resistance between two points on a surface is pretty meaningless. The only meaningful way of describing the resistance of a surface is as the area between two lines. Take two pieces of copper tape and place them perpendicular to each other so that the surface between them is a square (distance between the strips and strip length is equal). Now measure the resistance between the two strips. That's the resistance per square for that surface.