A simple fiberoptic sensor to detect the penetration of microsensors into sediments and other biogeochemical systems

@inproceedings{Wilbur1997ASF,
  title={A simple fiberoptic sensor to detect the penetration of microsensors into sediments and other biogeochemical systems},
  author={In K M Wilbur and H J Vonk},
  year={1997}
}
We have developed a simple and mechanically robust fiberoptic microsensor that enables optical detection of the sediment-water interface at a spatial resolution of <50 pm. The sensor measures with a tapered optical fiber the increased backscatter of near-infrared light near the sediment surface. To determine the sediment surface position independent of ambient light conditions, we developed a miniaturized opto-electronic system with an intensity-modulated laser diode (780 nm) as the light… CONTINUE READING