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Just as microphones collect sound in the air, underwater hydrophones detect acoustic signals in the ocean. Most hydrophones are based on a special property (piezoelecticity) of certain ceramics that produce a small electrical current when subjected to pressure changes.
At Seiche we are specialists in the design, development and manufacture of underwater acoustic and visual systems for monitoring, mitigation and measurement. Our products enable clients to comply with environmental regulations to protect marine life from the effects of sound in water.
Acoustic quantification of air-sea mixing and material exchange. Acoustic measurements of polar pack ice thickness as well as glacier and ice-sheet stability. Underwater acoustic communications and sensing to facilitate human and robot access to and habitation of the marine environment.
8 Οκτ 2018 · Current acoustic technology is also advancing rapidly, enabling new devices with voluminous data storage and automatic signal detection to define sounds. Future uses of passive acoustic monitoring (PAM) include biodiversity assessments, monitoring habitat health, and locating spawning fishes.
25 Νοε 2021 · Acoustic sensing contains various sonar devices for seafloor mapping, submersible navigation, and underwater object. Optical sensing technologies applied to ocean exploration include underwater imaging for objects inspection, spectrophotometry, and fluorophotometry for environmental parameters monitoring.
1 Ιαν 2020 · Currently, several technologies are available for acoustic exploration of the ocean. Just as microphones collect sound in the air, underwater hydrophones detect acoustic signals in the ocean.
Whether within an array or as a single element, the hydrophone is the basic sensor of underwater acoustics. Currently, several technologies are available for acoustic exploration of the ocean. For decades, the U.S. Navy has used a device called a sonobuoy to record the sound of enemy submarines.
