Infrared and Laser Engineering, Volume. 54, Issue 5, 20250106(2025)
Dynamic performance of seawater density sensor based on spectral interference principle
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Fig. 1. (a) Spectral interferometric seawater density sensing system; (b) Schematic diagram of sensing arm; (c) Schematic diagram of reference arm; (d) Pressure transmitter
Fig. 4. Measurement results of the optical sensor under different current velocities
Fig. 6. Difference in density between optical sensors and CTD sensors in profile testing
Table 1. Analysis of measurement results of the optical sensor under different current velocity conditions
View tableView in ArticleTable 1. Analysis of measurement results of the optical sensor under different current velocity conditions
Velocity/ m·s−1 Variation range (=Max – Min, kg/m3) Standard deviation/ kg·m−3 Interference fringe contrast 0.01 0.4 × 10−3 0.8 × 10−4 0.92 0.1 2 × 10−3 3 × 10−4 0.97 0.5 5 × 10−3 6 × 10−4 0.99 1 6 × 10−3 9 × 10−4 0.83 2 6 × 10−3 8 × 10−4 0.95
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Xiaoxue BAI, Xin WANG, Muzi ZHANG, Mengzhen WANG, Juan SU, Qi WU. Dynamic performance of seawater density sensor based on spectral interference principle[J]. Infrared and Laser Engineering, 2025, 54(5): 20250106
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Category: Newsletter
Received: Feb. 17, 2025
Accepted: --
Published Online: May. 26, 2025
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