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

Figure 1

Absorption simulation calculations for 400 ppm CO₂ and 1% H₂O. (a) Simulation of spectral absorption of 400 ppm CO₂ and 1% H₂O at pressure of 1 atm, with the near wavelength regions 2000 nm, path length 21 m; (b) simulation of spectral absorption with 400 ppm CO₂ and 1% H₂O in different driving current (50 mA–90 mA).

(a)

(b)