Method and a system for characterizing the fuel on board an aircraft

A method for acquiring fuel characteristics on board an aircraft, the aircraft comprising at least one tank, the method comprising a succession of following steps:

• a circuit determination step, implemented by a determination unit, the determination step comprising determining a fuel circuit, for circulating fuel, in one tank among the at least one tank, the fuel circuit comprising at least one pump configured to pump the fuel from the tank into the circuit, a fuel properties measurement unit and a first valve configured to open or close the fuel circuit;
• a filling step, implemented by a filling unit, the filling step comprising filling with fuel the circuit determined in the circuit determination step, the fuel being pumped into the circuit by the pump of the tank until inside the fuel properties measurement unit, and comprising blocking the fuel in the fuel properties measurement unit by closing the first valve;
• an acquisition step of the fuel characteristics in the tank, implemented by an acquisition unit, the acquisition step comprising acquiring a value, measured by the fuel properties measurement unit, respectively for each of the fuel characteristics of the tank;
• and
• a transmission step, implemented by a transmission unit, comprising transmitting, to a user device, a signal representative of the acquired values of the fuel characteristics.