Self-Powered Gyroscope Angle Sensor Based On Resistive Matching Effect Of Triboelectric Nanogenerator

Gyroscope is one of the most widely distributed and utilized motion sensors among Internet of Things sensing for sports health, artificial intelligence, military management, civil defense, etc. Preparing a thoroughly self-powered gyroscope sensor based on triboelectric nanogenerator (TENG) with superior stability is of innovative research significance. In this work, a self-powered gyroscope angle sensor (SGAS) based on resistive impedance matching effect of TENG is proposed to detect relative rotation angle, performing as an attitude indicator applied in the flight control system of the unmanned aerial vehicle. The ultrahigh sensitivity of 67.3 mV deg(-1) and outstanding linearity between the output voltage and rotation angle are obtained. Moreover, an instantaneous response within 20 ms can be observed during the process when gradually increasing the rotation angle from 0 degrees to 260 degrees. By lighting up different light-emitting diode patterns representing certain rotation angles, demonstrations on quantitative sensing alerts are also realized. The SGAS can operate without batteries or monitoring circuits, accompanied with excellent reliability and sensitivity, which is favorable for future automatic navigation control systems.