▎ 摘　　要

NOVELTY - The sensor comprises an anti-osmosis film (1), a graphene film (2), a hollow optical fiber (3) and a single-mode optical fiber (4). The hollow optical fiber is provided with a hollow core. One end of the hollow optical fiber is connected with the end part of single-mode optical fiber. The graphene film is covered on the other end of hollow optical fiber. The center of anti-osmosis film is provided with a through hole. The anti-osmosis film is covered on the graphene film and is covered on the end of the hollow optical fiber. The through hole of anti-osmosis film is located at the position of graphene film. An optical fiber F-P cavity structure is formed by graphene film, the hollow optical fiber and the single-mode optical fiber. The anti-osmosis film is a polyethylene film and a silicon dioxide film. USE - The sensor is useful in industrial production, health monitoring and other application scenes. ADVANTAGE - The sensor: realizes stable pressure detection; is simple in structure and easy to process; has strong anti-electromagnetic interference capability, small size, small volume and bendable; utilizes single-layer or at least one layer graphene film structure to greatly improve the sensitivity; finishes the task of hydraulic measurement well in the complex liquid environment; and demodulates external hydraulic changes by using the interference results of optical fiber's microstructure on light, which involves the construction and demodulation of optical fiber FP cavity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a process of anti-seepage high-sensitivity graphene hydraulic sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the anti-seepage high-sensitivity graphene hydraulic sensor. Anti-osmosis film (1) Graphene film (2) Hollow optical fiber (3) Single-mode optical fiber (4)