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    Content by Mika Satomi and Hannah Perner-Wilson
    E-Textile Tailor Shop by KOBAKANT
    The following institutions have funded our research and supported our work:

    Since 2020, Hannah is guest professor of the Spiel&&Objekt Master's program at the University of Performing Arts Ernst Busch in Berlin

    From 2013-2015 Mika was a guest professor at the eLab at Kunsthochschule Berlin-Weissensee

    From July - December 2013 Hannah was a researcher at the UdK's Design Research Lab

    From 2010-2012 Mika was a guest researcher in the Smart Textiles Design Lab at The Swedish School of Textiles

    From 2009 - 2011 Hannah was a graduate student in the MIT Media Lab's High-Low Tech research group led by Leah Buechley


    In 2009 Hannah and Mika were both research fellows at the Distance Lab


    Between 2003 - 2009 Hannah and Mika were both students at Interface Cultures
    We support the Open Source Hardware movement. All our own designs published on this website are released under the Free Cultural Works definition
    Sensors

    Neoprene Pressure Sensor

    also: Neoprene Pressure Sensor, Conductive Thread Pressure Sensor
    Stitching conductive thread into neoprene to create a pressure sensitive pad. This sensor is very similar to the Fabric Bend Sensor or vis-versa. And also close to the Fabric Pressure Sensor, but the difference is that the conductive surface is minimized by stitching only a few stitches on either side with conductive thread. This creates a good fingertip pressure range.

    >> Conductive Thread Pressure Sensor

    The resistance range of these pressure sensors depends a lot on the initial pressure. Ideally you have above 2M ohm resistance between both contacts when the sensor is lying flat. But this can vary, depending on how the sensor is sewn and how big the overlap of the adjacent conductive surfaces are. This is why i choose to sew the contacts as diagonal stitches of conductive thread – to minimize the overlap of conductive surface. But only the slightest touch of the finger will generally bring the resistance down to a few Kilo ohm and, when fully pressured, it goes down to about 200 ohm. The sensor still detects a difference, right down to about as hard as you can press with your fingers. The range is non-linear and gets smaller as the resistance decreases.

    Pressure Sensor (thread)

    Materials: Neoprene, conductive thread, stretch conductive fabric, velostat, fusible interfacing, regular thread
    Tools: Sewing needle, fabric scissors, iron

    Video

    6 Comments so far

    1. tim on October 20th, 2010

      Hello I’m Tim from Thailand i want to buy this sensor but i don’t know where i can buy? if you know please inform me at visioncoding@gmail.com and thank you for your sharing

      Best regard
      Tim

    2. Resistive Sensor : New Textiles 2012 on February 14th, 2012

      […] create a soft pressure or bend sensor. You can find a tutorial describing how to build this sensor here. Everyone should build a velostat-based sensor. If you would like to experiment with building […]

    3. Plusea on September 3rd, 2012

      […] Pressure Sensor blog post >> Pressure Sensor Matrix blog post >> Pressure Sensor Instructable >> Pressure Sensor Matrix […]

    4. Plusea on September 5th, 2012

      […] the Knit Stretch Sensor, the Felted Pompom Pressure Sensor, the Neoprene Bend Sensor and the Neoprene Pressure Sensor. It also includes the Neoprene Battery […]

    5. Session 5: Sensors | Tech Crafts on October 4th, 2012

      […] Pressure / Squeeze Fabric Pressure Sensor by Kobakant Sticky Tape Pressure Sensors by Kobakant Fabric Pressure Sensor Matrix by Kobakant Felted Pom-Pom […]

    6. eTextile on December 4th, 2014

      […] sensor http://www.kobakant.at/DIY/?p=201 Neoprene pressure sensor http://www.kobakant.at/DIY/?p=65 Fabric Button http://www.kobakant.at/DIY/?p=48 Neoprene bend sensor […]

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