noun
definition
Echolocation
definition
A device that uses hydrophones (in the same manner as radar) to locate objects underwater.
Examples of sonar in a Sentence
She uses a sonar system that emits sound waves.
In the mid-1950s and on into the early seventies, researchers used sonar equipment with mixed results.
Bathymetry and sidescan sonar imagery together reveal a slow-spreading ridge segment that has a large composite volcanic plateau at its center.
These poles are placed in concrete anchors, otherwise known as sonar tubes, to keep the building's structure secure.
Despite using sonar equipment and modern technology, to date, scientists have found no conclusive proof of the monster's existence.
The sonar transducer and GPS antenna can be mounted on a pole and temporarily attached to the boat 's stern.
Although many experts dispute witness sightings, the modern video recordings and sonar recordings, Nessie remains a popular urban legend and the most documented example of cryptozoology.
The Sonar I/O board is used to connect the ultrasonic sensors to the microprocessor on the Processor 2 board.
The screen to the left of the wheel is the Atlas Fishfinder, which locates shoals of fish by sonar.
The new atlantis moved forward to try and engage the target with the Simrad scanning sonar but without success.
Then searchers using sonar found six bodies in a span of just two weeks.
The sensor simulates a forward looking multibeam sonar with updates of nine frames per seconed for a fifty meter range (Quite ambitious ).
The fifth section is a tutorial on side-scan sonar.
This clear discrimination enables sidescan sonar to be used for validating airborne passive microwave data.
A detailed analysis of naval sonar will be given.
But if you use the active sonar and send out a ' ping ', the bats will stop coming after you.
Bronington's main role was hunting for mines by using the high definition sonar.
More images from the SEA sidescan sonar sweep can be viewed in our Photo Gallery.
Using sediment sampling and digital side-scan sonar, Van Lancker, et al.
It has been developed from the well proven telemetry system used on the GeoAcoustics dual frequency side-scan sonar.
Additionally, the digital echo sounder will be used with a side-looking sonar transducer that will enable quantification of dune planform morphology.
The members of Sonar Brass took sectional rehearsals for the three bands.
The sensor simulates a forward looking multibeam sonar with updates of nine frames per seconed for a fifty meter range (Quite ambitious).
Bronington 's main role was hunting for mines by using the high definition sonar.
This work attempts to apply statistical models such as the compound K-distribution to sonar imagery.
That means the design of the sonar signal is vital.
Finding regions of interest in sonar images is also an area of research.
Nothing found on surface - sonar survey of likely last position of vessel undertaken.
They point to the odd sonar readings taken during numerous expeditions and the credibility of eyewitness accounts.
Modern equipment, such as radar and sonar, have also increased the likelihood that if a large, 25-foot long creature lurked in the dark waters of Loch Ness, someone would find it.
However, many sonar contacts were recorded, and the researchers generally found the evidence to be positive that something large inhabited Loch Ness whether or not it was a descendent of a long-necked aquatic relative of a dinosaur.
While there is a great deal of anecdotal evidence, photographs, sonar readings and even video footage, many experts dispute these as hoaxes perpetuated by people who either want to make money or who want to continue the myth and legend.
On the other hand, sonar scans of Loch Ness have been inconclusive with no indisputable evidence pointing to a creature residing within even the deepest depths.