What is the role of a float operated transmitter in a fuel tank?

A float-operated transmitter in a fuel tank primarily functions to send an electric signal to the fuel quantity indicator. This device uses a float that rises and falls with the fuel level inside the tank. As the float moves, it adjusts the position of a potentiometer or a variable resistor, which then translates this movement into an electrical signal. This signal corresponds to the amount of fuel present in the tank and is relayed to the fuel quantity indicator, allowing pilots and ground crew to assess current fuel levels accurately.

The design and operation of the float-operated transmitter are crucial for ensuring the accuracy of fuel measurements, which is essential for flight safety and planning. Accurate fuel quantity readings allow operators to make informed decisions regarding fueling operations, flight range, and weight calculations, all vital for operational efficiency.