Research on the Seed Respiration CO₂ Detection System Based on TDLAS Technology

Figure 10

CO₂ calibration and linearity analysis. (a) Second harmonic signal of CO₂ at 605 ppm, 702 ppm, 804 ppm, 908 ppm, and 1008 ppm; (b) second harmonic peak fit curve of CO₂ at 605 ppm, 702 ppm, 804 ppm, 908 ppm, and 1008 ppm.

(a)

(b)