Scientists at the University of Nebrask have created a tactile sensor that is just as sensitive as a human fingertip. "The resolution of a human fingertip is about 40 microns, about half the diameter of a human hair." The device works by sandwiching a layer of semicondcuting nano-particle
This is a companion discussion topic for the original entry at https://community.robotshop.com/blog/show/sensor-breakthrough-high-resolution-tactile-sensor