Figure 7 | Scientific Reports

Figure 7

From: Highly Sensitive and Precise Analysis of SF6 Decomposition Component CO by Multi-comb Optical-feedback Cavity Enhanced Absorption Spectroscopy with a 2.3 μm Diode Laser

Figure 7The alternative text for this image may have been generated using AI.

Histogram plot of the deviation the measured concentration compared with the real value of 200 ppb CO. The red line depicts a Gaussian profile, which indicates that the measurement noises are clearly Gaussian distributed The half maximum of the Gaussian profile is 141 ppt with the concentration output rate of 30 s, which verifies that the sensor detection precision is higher better than 150 ppt.

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