BandEI: A Flexible Electrical Impedance Sensing Bandage for Deep Muscles and Tendons
summary
BandEI is a bandage-like electrical impedance sensor that uses woven conductive fabric and laser-cut silicone layers to sense deep and small muscles and tendons noninvasively. Design software auto-generates SVG files for curved body regions; fabrication takes about 10 minutes per patch and a finger sensor costs ~$0.40. Validation shows impedance traces align with EMG and also detect passive mechanical changes; hardware matches medical electrodes’ frequency response and supports gesture classification with ~98% accuracy.
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chapters (11)
- 0:00Introduction and team
- 0:34Project overview and motivation
- 1:16Existing muscle sensing methods
- 1:58Band-Aid concept and structure
- 3:24Advantages and fabrication
- 4:29Design and workflow
- 5:11Electrode material testing
- 6:37Validation against EMG
- 7:41Active vs passive muscle sensing
- 9:08Application demonstrations
- 10:33Conclusion and Q&A