Self Powered Sensor System

Intelligent Sensing and Secure Communications

A self-powered, flexible sensor that improves wearables and robots for applications like smart prosthetics, rehabilitation, gait analysis, touchbased control, gaming, and more.
Vector (2)-da6325
Institute: IIT Delhi
Vector (3)-42d8ac
PI Name: Prof. Dhiman Mallick

Technology Readiness Level (TRL)
4

Problem
Addressed

Development of advanced haptic feedback sensors for strain, force, and palm sliding detection, integrated with energy harvesting solutions to enable self-powered operation. Traditional mechanical energy harvesters are often macro/meso-scale and rely on linear resonant systems, making them unsuitable for variable human motion conditions. This work focuses on designing miniaturized, wideband, nonlinear energy harvesters coupled with high-resolution piezoelectric/triboelectric sensors to enhance human-machine interaction and soft robotics applications.
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About the
Technology

A low-cost, pixelated, fully flexible, wearable, Alenabled. high-efficiency pressure sensor based on novel dual transduction nanocomposites for human gait analysis, Al-enabled, high efficiency sensing for industry X.O.
  • Self-powered
  • Cost-effective
  • Flexible and circuit miniaturization
  • Hybrid – TENG + PENG

Application Areas & Use Cases

  • Sports and Healthcare: Measurement of grip strength and foot pressure
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Sensing range 5 - 170 kPa
Sensitivity 34 kPa.mV-1
Hysteresis 2.7 %
Reliability 3.2 % variation in 60 days
Transduction Piezoelectric/ Triboelectric
Photopatternability Yes
No. of cells 36
Active Area 20-25 cm2
Response Time 14 msec