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NOAA Photo Library Image - ship4424

Figure 50. Berget double deviation refractometer, developed and devised by the Frenchman Alphonse Berget, professor at the Oceanographic Institute. From about 1911 onward, he was concerned with developing an instrument to measure the density of a liquid at sea by a method that would not be affected by the ship's motion. He described the pictured instrument in 1925.

Image ID: ship4424, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco

Category: Oceanography/

High Resolution Photo Available

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Last Updated:
November 10, 2017