Application of Temperature Modulation-SDP on MOS Gas Sensors: Capturing Soil Gaseous Profile for Discrimination of Soil under Different Nutrient Addition

Figure 1

Principle and basic schematic of (a) general temperature modulation and (b) temperature modulation-SDP with (c) the desire rectangular modulation and (d) the generated waveform modulation.

(a)

(b)

(c)

(d)