A differential lever-type liquid level sensor fiber Bragg grating structure and method of use

The present invention relates to a differential lever level sensor fiber Bragg grating structure and method of use, belonging to the field of photonics technology measurement. The present invention includes a hollow plastic rod buoyancy, position fixing collar, a lever, a lever support rod, fixed base, transmission lever, fiber Bragg gratings, Izod strength, etc., derived fiber, cantilever rod, transmission force of the spring, the wall of the container; wherein the stationary base placed at the bottom of the container, the position of the fixed collar, and Izod lever support bar support bar welded on a fixed base, a hollow plastic rod buoyancy collar placed in a fixed position, the top of the hollow plastic rod is connected to the buoyant force of the spring transmission, the other end of the force transmission spring is attached to the left end of the lever, with the fulcrum of the lever is connected to the support rods, a right portion by a fulcrum and the other transmission lever is connected to the cantilever strength, Izod strength fiber Bragg grating attached in the vertical walls and the like. The present invention enables real-time online monitoring of the measured liquid level.