Reduction of the Measurement Time of a Chemiresistive Gas Sensor Using Transient Analysis and the Cantor Pairing Function

It is vital to measurethe concentration of gas quickly in manygas sensing applications. Predicting the steady-state response fromthe earlier transient response is the economical and viable solutionin this regard. However, existing transient analysis approaches eitherneed huge data and computationally intensive algorithms or are inefficient.Here, we described a method to reduce the measurement time of theconcentration of CH4 with a chemiresistive gas sensor atroom temperature (27 & DEG;C). The presented method considers thesensor's response at two fixed time intervals after gas exposureand maps their pairing number to the gas concentration. The proposedmethod measures the gas concentration in just 30 s from the gas exposuretime. As the proposed method can quickly measure gas concentrations,it can be employed in widespread applications where quick quantificationof gas is necessary.

Automated summary

A method was presented to quickly measure the concentration of CH4 at room temperature in just 30 seconds by analyzing the sensor's response at different fixed time intervals after gas exposure and mapping them to gas concentration for rapid measurement. This approach can be used in various applications where fast quantification of gas is essential.