echo sounder
Học thuậtThân thiện
Definition
- Noun:
- A measuring instrument for determining depth: An echo sounder is a device that calculates the depth of water by emitting an acoustic pulse and measuring the time it takes for the echo to return.
- A principle of underwater measurement: The term refers to the technology of using sound waves to gauge distance underwater by timing their reflection.
Usage Examples
- Noun:
- The ship's navigator used the echo sounder to ensure we were in safe waters.
- Modern fishing boats are equipped with an echo sounder to locate schools of fish.
- The data from the echo sounder confirmed the depth of the trench.
Advanced Usage
- Technical Context: In oceanography and hydrographic surveying, an "echo sounder" is a fundamental tool for creating bathymetric maps of the seafloor.
- The research vessel mapped the ocean floor with a multi-beam echo sounder.
Variants and Related Words
- Sonar (n): While often used interchangeably in general contexts, "sonar" (Sound Navigation And Ranging) is a broader term for systems using sound propagation for navigation, communication, or detection, which includes echo sounding technology.
- Active sonar systems function similarly to an echo sounder.
- Fathometer (n): A proprietary name that has become a generic term for a type of echo sounder used to measure water depth in fathoms.
- Asdic (n): An older term, primarily British, for anti-submarine detection equipment using echo sounding principles.
Synonyms
- Depth finder: A device for finding the depth of water.
- Depth sounder: Another term for an instrument that measures depth.
Related Phrases
- Echo sounding (n): The process or technique of using an echo sounder.
- Echo sounding revealed an underwater mountain.
Noun
- a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
- sonar is an acronym for sound navigation ranging
- asdic is an acronym for antisubmarine detection investigation committee