Fluid level measurement system using buoyant body

A fluid level measurement system using a buoyant body, the fluid level measurement system comprising:

• a guide part installed in a direction perpendicular to a bottom surface of a fluid storage tank, and provided with a space in which a fluid is allowed to move therein;
• a buoyant body inserted into the guide part, and configured to float along a surface of the fluid inside the guide part;
• a measurement part coupled to a top end of the guide part, and configured to measure a level of a surface of the fluid inside the fluid storage tank by transmitting a signal toward the buoyant body in an inner space of the guide part and then receiving a signal reflected from the buoyant body;
• and
• at least one buffer member coupled to an upper end of a side surface of the buoyant body to prevent the buoyant body from being caught in the guide part when the buoyant body is ascended and descended inside the guide part,
• wherein the buffer member is formed to protrude toward an inner circumferential surface of the guide part, and an outer radial end thereof is formed to have a predetermined radius of curvature, and
• wherein the buffer member is made of polytetrafluoroethylene (PTFE).