Science Daily November 2, 2020
Real-time health monitoring and sensing abilities of robots require soft electronics. Unlike rigid devices, being elastic and pliable makes their performance less repeatable due to hysteresis. Researchers in Singapore have developed a sensor, Tactile Resistive Annularly Cracked E-Skin (TRACE) which addresses the trade-off between sensitivity and hysteresis in tactile sensors when using soft materials. They discovered that piezoresistive sensors made using an array of three-dimensional metallic annular cracks on polymeric microstructures possess high sensitivities, low hysteresis over a wide pressure range and have fast response. They have demonstrated that TRACE sensors can accurately detect and measure the pulse wave velocity when skin mounted…read more. TECHNICAL ARTICLE