摘要 |
<p>Methods and systems for determining the identity of a fluid are provided, along with methods and systems for determining the fluid's flow rate and methods and systems for linearizing output signals provided by flow determination systems. Preferred methods for determining fluid flow comprise passing a test fluid through a conduit (20), maintaining a heating means (e.g. 24) at a temperature greater than the temperature of the conduit (20) in the presence of the test fluid, generating a test input voltage required to maintain the heating means (e.g. 24) at said temperature, providing to a processing means (40) a data set comprising the test input voltage, and comparing the test input voltage with at least one reference input voltage via the processing means (40) to determine the identity of the test fluid. The methods further comprise generating an output signal, providing to a processing means (40) a data set which comprises the output signal, and applying, via the processing means (40), a flow function to the data set to calculate the flow rate. <IMAGE></p> |