Gas cross-sensitivity analysis method and system thereof

摘要

A gas cross-sensitivity analysis method is provided. The method includes, an injection frequency signal is generated from a first gas. A second gas sensing signal is captured from a second gas. Then, the second gas sensing signal is converted to a second gas sensing frequency signal by using Fast Fourier Transform. Further, a sensing peak frequency signal is determined from peak frequency of the second gas sensing frequency signal. The injection frequency signal and the sensing peak frequency signal are analyzed. A gas cross-sensitivity effect can be direct interpretation by a singular indication between the injection frequency signal and the sensing peak frequency signal.

主权项

1. A gas cross-sensitivity analysis method, comprising:
generating an injection frequency signal from a first gas; capturing a second gas sensing signal from a second gas; converting the second gas sensing signal to a second gas sensing frequency signal; determining a peak frequency of the second gas sensing frequency signal, and generating a sensing peak frequency signal; and generating a subtracted value by subtracting the sensing peak frequency signal from the injection frequency signal, and taking an absolute value of the subtracted value as a difference; wherein if the difference is less than a standard value, the second gas sensing signal is indicated to be valid, otherwise if the difference is greater than the standard value, the second gas sensing signal is indicated to be invalid, then a singular is occurred between the injection frequency signal and the sensing peak frequency signal thereby inducing a gas cross-sensitivity effect.