Ultra-sensitive double-induction-layer flexible strain sensor with extremely wide detection range and preparation method thereof

• Main Authors: JIA HONGBING, YE MINGYU, FU QUANSHENG, LIN YANKUN
• Format: Patent
• Language: Chinese; English
• Published: 14.05.2024
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses an ultra-sensitive double-induction-layer flexible strain sensor with an extremely wide detection range and a preparation method thereof, a bandage is used as a template skeleton, reduced graphene oxide and the carbonized bandage skeleton form a first conductive layer, the surface of the template skeleton is coated with liquid metal to form a second conductive layer, and a synergistic double-layer conductive network is constructed. And the rubber elastomer is used as the flexible substrate to prepare the flexible strain sensor with ultrahigh sensitivity and extremely wide strain detection range, and the flexible strain sensor can be used as wearable monitoring equipment for a human body. The sensor not only shows extremely high strain sensitivity, but also has an extremely wide strain detection range, the preparation method is simple to operate, mild in condition and low in equipment requirement, and the prepared flexible strain sensor can be attached to different parts of a human body