Systems and methods to determine a temperature compensated speed of sound for gases

A method comprising:

• determining, via a first sensor, a current temperature of a gas flowing within a gas channel;
• determining, via a second sensor comprising at least two transducers, a gas flow rate based on one or more signals emitted by the at least two transducers within the gas;
• determining, via at least one processor communicatively coupled to the first sensor and the second sensor, an absolute time of flight (aToF) of the one or more signals propagating through the gas between the at least two transducers in an upstream direction and a downstream direction;
• determining, via the at least one processor, a delta time of flight (dToF) of the one or more signals based at least on the determined aToF in the upstream direction and the downstream direction, wherein the dToF corresponds to a difference between the aToF in the upstream direction and the aToF in the downstream direction;
• determining, via the at least one processor, a gas flow rate based on the aToF and the dToF;
• determining, via the at least one processor, a speed of sound (SoS) within the gas, based at least on the aToF determined and a distance between the at least two transducers of the second sensor;
• and
• determining, via the at least one processor, a compensated SoS for the gas based at least on the determined SoS, a base condition, the determined gas flow rate, and the determined current temperature of the gas.