What does towed sonar array do?

What does towed sonar array do?

The towed array sonar is effective in the detection and tracking of faint sounds such as the low noise-emitting submarine threats or seismic signals. This passive TAS has superior resolution and has a wider range than with the hull-mounted sensor. This covers the baffles which is the blind spot of hull-mounted sonars.

What is the towed array on a submarine?

towed array sonar
A towed array sonar is a system of hydrophones towed behind a submarine or a surface ship on a cable.

What is a flank array?

Flank array sonar sensors, mounted symmetrically on port and starboard sides of the submarines; provide excellent detection characteristics at low frequencies, thanks to the increased array aperture.

What is sonar dome?

Sonar dome is a protective cover to sonar equipment of surface war ships. The dome is designed to house sonar array, and to maximize the performance of the array by reducing the effects of noise of water turbulence and protecting the array from wave slamming, minor collisions etc.

What are the different types of sonar?

Different types of Sonar. Sonar is divided into 3 main categories: Searchlight Sonar (PPI Sonar), Sector Scan Sonar, and Scanning Sonar.

What are sonar domes made of?

rubber
Sonar domes on Navy surface ships are made of rubber. On submarines, they are made of steel or glass-reinforced plastic (GRP) with a 1/2-inch rubber boot covering the exterior.

What is a sonar transducer?

The transducer is the heart of a sonar / fishfinder system. The device converts electrical pulses into acoustic energy or sound waves and transmits these waves into the water. Sonar transducers can be used to detect fish, bottom structures and the sea / river bed topography.

What are the advantages of towed array sonar?

A towed array offers superior resolution and range compared with hull mounted sonar. It also covers the baffles, the blind spot of hull mounted sonar. However, effective use of the system limits a vessel’s speed and care must be taken to protect the cable from damage.

What is variable depth sonar (VDS)?

Variable Depth Sonar (VDS) is a key sensor technology for identifying conventional diesel- powered submarines operating in difficult sonar environments such as littoral waters.

What size boat do I need to operate a side scan sonar?

Deeper towed search OPS require winches and longer lengths of sonar cable all of which require bigger boats. The general rule of thumb is cable required equals 3 times the water depth. Small hull mounted side scan sonars can generally be operated from vessels less than 100 ft or from a surface robot as small as 6 feet in length.

What was the first towed sonar system?

History During World War I, a towed sonar array known as the “Electric Eel” was developed by Harvey Hayes, a U.S. Navy physicist. This system is believed to be the first towed sonar array design. It employed two cables, each with a dozen hydrophones attached.

https://www.youtube.com/watch?v=p5vVIzlPaR8