US 12,264,951 B2
Ultrasonic fuel flow measuring systems and methods of setting characteristics of excitation signals
James Ryan Reepmeyer, Cincinnati, OH (US); Cameron Roy Nott, Fairfield, OH (US); Emad Andarawis Andarawis, Ballston Lake, NY (US); and Kirk Dennis Wallace, Glenville, NY (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Apr. 29, 2022, as Appl. No. 17/732,945.
Claims priority of provisional application 63/182,382, filed on Apr. 30, 2021.
Prior Publication US 2022/0364894 A1, Nov. 17, 2022
Int. Cl. G01F 1/667 (2022.01); F01D 21/00 (2006.01); G01F 1/66 (2022.01); G01F 25/10 (2022.01); G01N 29/036 (2006.01); G01N 29/34 (2006.01); G01N 29/42 (2006.01); G01N 29/44 (2006.01)
CPC G01F 1/667 (2013.01) [F01D 21/003 (2013.01); G01F 1/66 (2013.01); G01F 1/662 (2013.01); G01F 25/10 (2022.01); G01N 29/036 (2013.01); G01N 29/348 (2013.01); G01N 29/42 (2013.01); G01N 29/4418 (2013.01); F05D 2270/306 (2013.01); F05D 2270/71 (2013.01); F05D 2270/80 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a first transducer arranged to direct ultrasonic signals through a conduit;
a second transducer spaced from the first transducer and arranged to direct ultrasonic signals through the conduit; and
one or more processors being configured to:
cause the first transducer to be excited at a first excitation frequency and at a second excitation frequency, the first and second excitation frequencies being different from one another;
determine a complex impedance spectrum associated with the first transducer based at least in part on fitting a model to a first data set, the first data set indicating i) a ratio of a voltage to an electric current at the first transducer when excited at the first excitation frequency and a ratio of the voltage to the electric current at the first transducer when excited at the second excitation frequency, and ii) a phase difference between the voltage and the electric current at the first transducer when excited at the first excitation frequency and a phase difference between the voltage and the electric current at the first transducer when excited at the second excitation frequency; and
set one or more characteristics of one or more second excitation signals to be directed to the second transducer based at least in part on the complex impedance spectrum associated with the first transducer.