Fiber Bragg grating level meter features :1. High precision, high stability, high reliability; 2. 2. Intrinsically safe, free from electromagnetic interference, anti-corrosion, anti-pollution, anti-lightning ability, can be used in strong electromagnetic interference, high lightning, flammable, explosive and other harsh conditions. 3. The sensor signal transmission distance is long, up to 25m; 4. The layout is simple and can be mixed with other types of fiber Bragg grating sensors. The largest measuring range of the optical fiber liquid level meter independently developed by Wuhan Xinfang Photoelectric is 25M, the measuring accuracy of the optical fiber liquid level meter can reach ±3mm, the resolution of the optical fiber liquid level meter is 1mm, continuous measurement in all day long, and the data acquisition time is short 1 second can be collected once, the protection level of the optical fiber liquid level meter is IP65, the explosion-proof level is intrinsically safe, the explosion-proof mark is [Ex op] is T6 Ga】IIC, optical fiber liquid level meter optical cable transmission distance can be less than or equal to 1KM, the whole system adopts modular design, the whole package, high reliability, low failure rate. Optical fiber liquid level meter liquid level meter is very simple in installation, no need to clean tank, no need to fire, convenient and safe.