Woods Hole Oceanographic Institution is the world's leading, independent non-profit organization dedicated to ocean research, exploration, and education. Our scientists and engineers push the boundaries of knowledge about the ocean to reveal its impacts on our planet and our lives
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21 to 22 of 22 Results
A Refractometer for Measuring Thermohaline Density Microstructure in the Ocean
Jul 21, 2025 - Applied Ocean Physics & Engineering
Jason Kapit; Farr, Norman; Schmitt, Raymond, 2025, "A Refractometer for Measuring Thermohaline Density Microstructure in the Ocean", https://doi.org/10.26027/DATAVI1X45, MBLWHOI Library Dataverse, V1, UNF:6:epQsmNnadTTL3W7CWhGEyA== [fileUNF]
Here we report an optical sensor for measuring millimeter-scale thermohaline density variations in the ocean. The instrument is based on a fiber Fabry-Perot white light interferometer which can resolve the refractive index of water to better than 2 x 10-8 within a sample volume smaller than 1 mm3 at a sample rate of 500 Hz. This equates to detectab...
An Underwater Methane Sensor Based on Laser Spectroscopy in a Hollow Core Optical Fiber
Jul 21, 2025 - Applied Ocean Physics & Engineering
Jason Kapit; Youngs, Sarah; Pardis, William A.; Padilla, Alexandra M.; Michel, Anna, 2025, "An Underwater Methane Sensor Based on Laser Spectroscopy in a Hollow Core Optical Fiber", https://doi.org/10.26027/DATAPTD8ZF, MBLWHOI Library Dataverse, V1, UNF:6:S+yqkS17186lU0QS3EbOOA== [fileUNF]
Existing sensors for measuring dissolved methane in situ suffer from excessively slow response times or large size and complexity. The technology reported here realizes improvements by utilizing a hollow core optical fiber (HFC) as the detection cell in an underwater infrared laser spectrometer. The sensor operates by using a polymer membrane inlet...
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