Micro-pulse sensor for measuring liquid level and density of gasoline or diesel oil and measuring method thereof

The invention discloses a micro-pulse sensor and a measuring method used by the micro-pulse sensor. The micro-pulse sensor is installed in a gasoline and diesel storage tank of a gas station, can measure the liquid level of the storage tank, can also measure the density of liquid in the storage tank in real time, and can prevent water-doped fuel from being mixed in the oil transfer process. The invention designs a micro-pulse sensor for measuring the liquid level and density of gasoline or diesel oil. The micro-pulse sensor comprises a top electronic bin, a measuring rod and two buoys, the buoy A is close to the electronic bin and is used for measuring the liquid level; the buoy B is close to the bottom end of the measuring rod and is used for measuring density. The buoy B interacts with the spring at the bottom end of the measuring rod, the buoy B is balanced under the action of gravity, buoyancy of gasoline or diesel oil and elastic force of the spring, the liquid level of the gasoline or the diesel oil can