Hydrophone
A hydrophone is a type of microphone that is designed to be used underwater for detecting and recording sound waves. Hydrophones are commonly used in the maritime industry for a variety of purposes, including underwater communication, navigation, and surveillance. They are also used by marine biologists to study the sounds made by marine animals. Hydrophones can be either passive or active. Passive hydrophones are designed to pick up sounds that are already present in the water, while active hydrophones emit sound waves and then detect the echoes that bounce back. Hydrophones are an important tool for understanding the underwater environment and for ensuring the safety and security of maritime operations.
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