Flexible, stretchable, and distributed strain sensors

摘要

Methods and systems for sensing strain are disclosed. A thin film sensor includes a thin film polymer matrix that has two electrical terminals, conductive nanoparticles dispersed within the polymer matrix, and carbon nanotubes dispersed within the polymer matrix. The thin film sensor has a resistivity across the two electrical terminals that varies with a magnitude of strain applied to the thin film sensor. Strain may be sensed by applying a voltage to the thin film sensor, and an electrical response of the thin film sensor may be detected due to a strain present across the sensor. A magnitude of the strain can be determined based on the electrical response. Methods and systems for a memristor are also disclosed. The memristor has a resistivity that varies with a time-varying voltage input and with a time-varying strain input.