Determining a corrected measured flow rate

1. A method of determining a corrected measured flow rate, the method comprising:

measuring a first flow rate with a first flow meter;

measuring a second flow rate with a second flow meter, the second flow meter being fluidly coupled to the first flow meter in series with a vehicle connected between the first and second flow meters, the vehicle consuming a fluid during the measurement of the first and second flow rates; and

correcting the first flow rate with an estimated zero flow instability comprising a difference between a prior first flow meter measurement and a prior second flow meter measurement, wherein the prior first flow meter measurement and the prior second flow meter measurement are made at a time when the vehicle was not consuming the fluid,

wherein a first flow meter zero flow instability is greater than a second flow meter zero flow instability.

2. The method of claim 1 , wherein a first flow meter pipe diameter of the first flow meter is greater than a second flow meter pipe diameter of the second flow meter.

3. The method of claim 1 , wherein the first flow rate and the second flow rate are measured simultaneously.

4. The method of claim 1 , wherein the estimated zero flow instability is stored in a meter electronics.

5. A dual flow meter system ( 5 ) for determining a corrected measured flow rate, the dual flow meter system ( 5 ) comprising:

a first flow meter ( 5 a );

a second flow meter ( 5 b ) fluidly coupled in series with the first flow meter ( 5 a ) with a vehicle connected between the first and second flow meters;

and

at least one meter electronics ( 100 ) communicatively coupled to the first flow meter ( 5 a ) and the second flow meter ( 5 b ), the at least one meter electronics ( 100 ) being configured to receive a first flow rate measured with the first flow meter, receive a second flow rate measured with the second flow meter, with the vehicle consuming a fluid during the measurement of the first flow rate and the second flow rate, and correct the first flow rate with an estimated zero flow instability comprising a difference between a prior first flow meter measurement and a prior second flow meter measurement, wherein the prior first flow meter measurement and the prior second flow meter measurement are made at a time when the vehicle was not consuming the fluid,

wherein a first flow meter instability is greater than a second flow meter zero flow instability.

6. The dual flow meter system ( 5 ) of claim 5 , wherein a first flow meter pipe diameter of the first flow meter is greater than a second flow meter pipe diameter of the second flow meter.

7. The dual flow meter system ( 5 ) of claim 5 , wherein the first flow rate and the second flow rate are measured simultaneously.

8. The dual flow meter system ( 5 ) of claim 5 , wherein the estimated zero flow instability is stored in the at least one meter electronics ( 100 ).

9. A fluid control system ( 400 ) for determining a corrected measured flow rate, the fluid control system ( 400 ) comprising:

a supply line (SL) with a first flow meter ( 5 a );

a return line (RL) with a second flow meter ( 5 b ) fluidly coupled in series with the first flow meter ( 5 a ); and

one or more meter electronics ( 100 ) communicatively coupled to the first flow meter ( 5 a ) and the second flow meter ( 5 b );

a vehicle connected between the first flow meter ( 5 a ) and the second flow meter ( 5 b );

wherein at least one of a system controller ( 410 ) is communicatively coupled to the one or more meter electronics ( 100 ) and the one or more meter electronics ( 100 ) is configured to receive a first flow rate measured with the first flow meter, receive a second flow rate measured with the second flow meter, with the vehicle consuming a fluid during the measurement of the first flow rate and the second flow rate, and correct the first flow rate with an estimated zero flow instability comprising a difference between a prior first flow meter measurement and a prior second flow meter measurement, wherein the prior first flow meter measurement and the prior second flow meter measurement are made at a time when the vehicle was not consuming the fluid,

wherein a first flow meter zero flow instability is greater than a second flow meter zero flow instability.

10. The fluid control system ( 400 ) of claim 9 , wherein a first flow meter pipe diameter of the first flow meter is greater than a second flow meter pipe diameter of the second flow meter.

11. The fluid control system ( 400 ) of claim 9 , wherein the first flow rate and the second flow rate are measured simultaneously.

12. The fluid control system ( 400 ) of claim 9 , wherein the estimated zero flow instability is stored in the one or more meter electronics ( 100 ).