Gas detecting system, device and method

摘要

A gas detecting system, device and method use a variable pulse voltage waveform to increase the temperature of a detecting unit of the gas detecting system so it reacts with gas molecules from a particular space, and outputs a sensing signal. A processing unit of the gas detecting system then performs calculations on the sensing signal, such that an analysis unit may determine the presence of a target gas in the particular space, and further the composition and concentration of the target gas within the particular space, thus providing a detection that is accurate, rapid and convenient.

主权项

1. A gas detecting system, comprising:
a database for storing at least one characteristic signal of at least one target gas; a voltage unit for outputting a variable pulse voltage waveform corresponding to the at least one target gas; a detecting unit for increasing its own temperature based on the variable pulse voltage waveform outputted by the voltage unit to react with gas molecules from a particular space, and to output a sensing signal corresponding to the gas molecules; a processing unit for performing a dimensionless or normalization calculation on the sensing signal outputted by the detecting unit according to a reaction temperature of the at least one target gas and outputting a relative signal; and an analysis unit for comparing a portion of the relative signal outputted by the processing unit with the at least one characteristic signal in the database to output an analysis result.