pl23_ship4042.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4042jpgDescription
Figure 37. Current meter invented by Otto Pettersson 1910 with photographicrecorder. Left: view of the assembled unit. Right: details of themeasuring device and recorder. This was the first current measuring device tobe able to record both direction and strength of current for long periods. Itwas first used from a pontoon at Goteborg in 1911.
Credit
Oceanographic Museum of Monaco
Photographer
P. Roggero
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Current Measuring Devices
Keywords
Oceanography
Historical instruments