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NOAA Photo Library Image - ship4279

Figure 69. Langevin quartz ultrasonic projector. This device was built in 1925 by the Society for Condensation and Mechanical Applications based on work by Paul Langevin. It was also distributed by the Marconi Company. It consisted of a piezo-electric emitter. No informatin exists concerning tests and use of this instrument.

Image ID: ship4279, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco

Category: Oceanography/Historical instruments/

High Resolution Photo Available

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Last Updated:
November 10, 2017