sonic depth finder
Học thuậtThân thiện
Definition
Noun: A device or system that determines the depth of water or the location of a submerged object by emitting and receiving ultrasound waves. It measures the time it takes for sound waves to travel to the bottom or object and reflect back.
Usage
The term "sonic depth finder" is a technical noun used to describe a specific type of navigational or surveying equipment. It is used in contexts related to marine navigation, oceanography, and fishing. - The captain used the sonic depth finder to avoid running aground in the shallow bay. - Modern sonic depth finders provide highly accurate charts of the seafloor.
Advanced Usage
- Echolocation Principle: The device operates on the principle of echolocation, similar to that used by bats and dolphins.
- Sonar: While "sonic depth finder" is a specific term, it is a foundational technology for more complex systems like sonar (Sound Navigation and Ranging), which can also detect objects and map surfaces.
Variants and Related Words
- Depth finder: A more general term for any device that measures depth.
- Echosounder: A common synonym, often used interchangeably with "sonic depth finder."
- Fathometer: A proprietary brand name that has become a generic term for a sonic depth finder.
Synonyms
- Echosounder
- Depth sounder
- Acoustic depth gauge
Related Phrases
- Taking a sounding: The act of using a depth finder to measure water depth.
- Before anchoring, the crew took a sounding to ensure there was enough depth.
Noun
- depth finder for determining depth of water or a submerged object by means of ultrasound waves