An ultrasonic fuel tank level sensor is a robot that with high precision measures the amount of liquid in the tank.Whereas other types of sensors work by measuring temperature differences or electrical resistance in the fuel, this type uses a higher frequency to transmit sound waves into the tank and those waves bounce back off the surface to return. Signal gets sent from the function into a converter then on to a Liquid Crystal Display which shows at one glance how many levels there are in there. In addition this non-contact measuring system has a variety of functions: continuous measurement, data recording and finally transmission of level information in computable form. Depending not just on the technology itself but also on the raw materials used in making it, those features could be listed in increased detail: An ultrasonic fuel gauge employs latest signal processing techniques; its operating environment is made resistant to corrosion by means of special sealing and parts made of plastics or stainless steel are employed at those sections where necessary. The sensor of the fuel gauge represents an electrical impedance element. The method of measuring fuel level is a matter of conversion between technologies, but it also brings with it that people need to understand what any given one meets or fails to meet various standards. Applications can be found in numerous industrial fields including transportation, aviation and manufacturing of machinery. Here the instrument is utilized to realize efficient fuel management and system optimization for both mechanical and human components.