CPC G01N 27/18 (2013.01) [G01N 27/16 (2013.01)] | 22 Claims |
1. A method of operating a sensing element comprising a heating element in operative connection with electronic circuitry, the sensing element forming a resistive element in a circuit of the electronic circuitry, comprising: activating the electronic circuitry to heat the sensing element to a temperature at which the sensing element is responsive to an analyte gas via a pulse of energy which is input to the heating element, wherein a constant resistance setpoint is set for the sensing element, variably controlling energy through the circuit in at least a first phase during the pulse of energy toward achieving the constant resistance setpoint, and measuring a response of the sensing element over time during the pulse of energy to detect the analyte gas.
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