Sentences with phrase «sonar on a submarine»

Much like sonar on a submarine, these sound waves are reflected when they encounter objects in their path.

Not exact matches

Active sonar systems, such as on submarines, determine the position of objects by sending out an acoustic pulse.

This would be catastrophic for NATO submarines, which have been honed to run ever more quietly, using clever technology that prevents them from being heard or detected on sonar.

But today's devices can only detect a submarine at fairly short range, so tend to be used to home in on the location once the sub has already been spotted on sonar.

Looking at the diagrams with a hidden message in the article on understanding risk (25 June, p 31) reminded me of how sonar operators used sonar printouts to detect the presence of submarines.

In addition, the 777's cockpit voice and flight data recorders — the «black boxes» — each include a «pinger», an ultrasonic acoustic transmitter that, for up to 30 days after submersion, can be picked up by ship or submarine sonar receivers, allowing them to home in on the source.

In 2009 a team of British and American scientists deployed an autonomous robot submarine on six missions beneath the PIG ice shelf using sonar scanners to map the seabed and the ice shelf bottom.

And the sonar systems on Los Angelos class fast attack submarines, like the one I went under the ice on, that could measure ice thickness, were of the active variety, projecting sound and listening to the echos, and were rarely, if ever used up there.

The interview covers the time Dr. Ball spent chasing Russian submarines and working in Arctic search and rescue, and details the impact of sonar on whales, dolphins, and other marine life.

The sensor can potentially replace the expensive «eyes and ears» on Autonomous Underwater Vehicles (AUVs), submarines and boats that currently rely on cameras and sonars to gather information about the environment around them.