Marine and Lake Oil Pollution DetectionReturn >>
The Indigo S-UV is a back-illuminated wide-spectrum, high-sensitivity SCMOS camera The camera's imaging capability spans from 180nm to 1100nm, and the photoelectric conversion efficiency at 254nm is 60%, 50% at 365nm.
A few days ago, our company went to Hangzhou with the S-UV camera to help the Marine Optoelectronic Laboratory of Zhejiang University to detect oil pollution. This experiment takes advantages of the feature that the sunlight contains a large amount of near-ultraviolet light, while the aromatic compounds and water in the oil have different absorption and reflectance of light in the near-ultraviolet region, to monitor the location and area of the oil.
The traditional scheme does not filter the visible light making up relative high in sunlight, and the ultraviolet sensitivity is extremely weak. In the comparative experiment, it is obvious to see that the detection of oil on the water surface is slow, while when we use drones for large-area detection, the environmental requirements is high, which is not suitable for further promotion.
Location: Marine Optoelectronic Laboratory in Zhejiang University
Time: 2017.12.14 12:40-16:30
Camera: Indigo S-UV, f3.8/78mm – Effect comparison using Quartz lens.
1. Regardless of the distance of shooting, making use of 365nm light in the sunlight can clearly distinguish between water and organic benzene (gasoline), and the edges are very clear.
2. Compared with the pictures taken by the color camera of the drone at the same time, the overall effect in the images taken by our camera is very obvious.
BSI High Sensitivity UV Camera
Back-thinned CMOS Response from UV to NIR (180~1100nm) 83.3%@280nm Excellent UV imaging capability Very low readout noise: 1.3e- 2048 x 2048 Resolution High dynamic range up to 93dB Multi trigger mode design