A Flexible, Wearable,\nand Interference-Resistant Self-Powered\nSensor for Body Motion Assessment

Here, we designed a flexible, wearable, and interference-resistant\nself-powered sensor (FWIS) based on a grating-structured triboelectric\nnanogenerator (TENG) for body movement assessment. External interference\nis reduced by cutting skeletonized areas above the electrodes so that\nthe friction layer overlaps the slider. This structure improves contact\nthrough pressure generated by elastic deformation, while the skeletonized\nportion reduces the interference area of the slider, forming a sliding\ntrack and fixing the sliding path. In the simulation test, the amplitude\nof the signal output from the sensor is 7–8 V, while the interference\nsignal generated by vibration is only 0.2 V.