Fuel Gauge Measurements

A fuel gauge is a device inside of a car or other vehicle that measures the amount of fuel still in the vehicle.

Fuel gauge measurements.

This also ensures that the gauge reads properly. First measure tank depth from the top of the tank near the sending unit to the bottom. The metallic ruler will be wet with fuel from its tip to a certain measurement such as 3 feet. Calculate the level of fuel in the tank by dividing the measurement taken on the metallic ruler by the total height of the tank.

This measurement is not meaningful however until you compare it to the tank s capacity. This type of system can be used to measure the amount of gasoline or some other type of liquid. Many large transport aircraft use a different fuel gauge design principle. Systems that measure large fuel tanks including underground storage tanks may use the same electro mechanical principle or may make use of a pressure sensor sometimes connected to a mercury manometer.

There are two main parts to a fuel gauge. The length of the sender arm may have to be modified to fit the dimensions of your fuel tank. This measurement determines the length of the sending unit s float arm.