Glossary of Terms
Acoustic sensors are devices that detect and measure sound waves in the surrounding environment. They convert acoustic signals into electrical signals for further analysis.
Active and Passive Sound Detection:
Active sound detection involves the emission of sound waves and analysis of their reflections, while passive sound detection relies on listening to ambient sound without actively emitting signals. Both methods are used for various applications, including sonar systems.
Broadband Sonar Arrays:
Broadband sonar arrays are arrays of transducers capable of emitting and receiving a wide range of frequencies. This allows for enhanced underwater imaging and detection capabilities, especially in complex environments.
Depth sounders, also known as echo sounders, are instruments that use sonar technology to measure the depth of water. They emit a sound pulse and measure the time it takes for the signal to return, providing information about the water depth.
Piezoelectric transducers are devices that generate electrical charges in response to mechanical pressure changes, such as sound waves. They are commonly used in acoustic sensors and underwater transducer systems.
Sidescan transducers are specialized transducers used in sonar systems to produce detailed images of the seafloor by emitting sound waves to the sides and receiving the echoes. They are valuable for underwater mapping and navigation.
Sonar arrays consist of multiple transducers arranged in a specific configuration to transmit and receive acoustic signals in underwater environments. They play a crucial role in various applications, including navigation, communication, and detection of underwater objects.
Transducer design involves the creation and optimization of devices that convert one form of energy, such as acoustic signals, into another, typically electrical signals. This process is essential for applications like underwater sensing and communication.
Undersea communications refer to the transmission of data, usually in the form of sound or electromagnetic signals, beneath the water surface. This field involves specialized technologies to overcome the challenges posed by the underwater environment.
Underwater acoustics is the study of how sound behaves underwater, including its generation, propagation, and reception. It plays a crucial role in various applications such as sonar systems, underwater communication, and marine research.
Underwater hydrophones are sensitive microphones designed for use in water. They are integral components of underwater acoustic systems, allowing the detection and recording of sound waves in aquatic environments.