Soft Sensing Suit

Researchers at the Wyss Institute developed a soft sensing suit to monitor hip, knee, and ankle sagittal plane joint angles of the wearer. The hyper-elastic strain sensors have microchannels of liquid metal embedded within elastomer, and have a refined design with the use of discretized stiffness gradients to improve mechanical durability. Credit: Wyss Institute at Harvard University.
For more information, please visit: wyss.harvard.edu/technology/f...

[@raghavsinghal9187]

What's the principle of operation? Piezoelectricity?

[@wyssinstitute]

The sensing principle of our artificial skin is changes in electrical resistance in response to physical deformations. When the microchannels filled with EGaIn are either pressed or stretched, the electrical resistance of the microchannels increases due to their reduced cross-sectional areas, increased channel lengths, or both.

[@BioRobotics]

Piezoresistance