~/talk

MagTex: Machine-Knitted Magnetoactive Textiles for Bidirectional Human-Machine Interface

Talkat UIST 2025 · 2025-09-28..10-01· [embedded-and-hardware]
name:Sen Zhang
links:none on file
links:none on file
links:none on file
name:Yiyue Luo
links:none on file
slides:none on file

MagTex combines soft magnetized silicone fibers and copper wire coils knitted on a digital machine to make a single-layer wearable that both senses motion and produces haptics. It uses the galvanomagnetic effect for localized vibration and electromagnetic induction for sensing, with a three-layer stackable PCB (power, amplifier+MCU, haptic driver). Tests show single-layer interlock knit gives the strongest field, a 5-person study finds low frequency plus high current most perceivable, and washing preserves sensing signals.

AI-written summary · about

  1. 0:00Introduction to MagTex
  2. 1:48Limitations of current interfaces
  3. 2:09MagTex design and mechanism
  4. 4:14Fabrication of magnetoactive fiber
  5. 4:58Knitted electromagnet structure
  6. 6:23Knitting structure performance
  7. 7:26PCB stack and signal processing
  8. 8:28Sensing functionality evaluation
  9. 8:49Haptics user study results
  10. 9:54Applications in gaming and Braille
  11. 10:36Closed-loop control demo
  12. 11:06Q&A on robustness
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