After the AirAsia plane debris was found, a subsequent
search stage is to find the black box, which could be a key cause of AirAsia
fell into the sea. Java Sea, where the discovery of fragments of it, a depth of
25-30 meters. Thus, in addition to involving divers, sophisticated tools are
also included like this:
Detector
National Transportation Safety Committee (NTSC) trying to
find out where the best black box of AirAsia QZ8501. The tools used in the form
of 6 pieces Detection.
"There are 6 Detector that will be used to seek
emergency signal attached to the black box (black box)," said Chief NTSC,
when contacted by AFP on Tuesday (12/30/2014) night.
Tatang emergency tool in question is Underwater Locator
Beacon (ULB) attached to the black box which issued an emergency signal. detector
then detects the sound.
"It can detect sounds up to 200 meters," said
Tatang.
Six Detector tool that will be used are the property of
the NTSC, NTSC and NTSC English Singapore. The plan, black box search team will
begin to move from Tanjung Pandan at around 06.00 pm.
Remote Operator Vehicle (ROV)
When the location of black box has been found, the robot
is called Remote Operated Vehicle (ROV) will be used. This tool will lift
objects in the deep sea.
ROV is used for many things in the water, some of them
for the benefit of offshore oil exploration, including a pipe assembly,
electronics, and construction.
.jpg "Remote Operator Vehicle (ROV)")
ROV is also used to remove
the black box Adam Air in West Sulawesi Majene waters from the ocean depths of
2,000 meters. ROV used to lift AdamAir when it is the kind of Remora ROV that
can roam up to a depth of 6 thousand meters.
That will bring the ROV in
the SAR AirAsia is a survey team consisting of the Association of Indonesian
Surveyor and Marine Survey Contractors Association of Indonesia to bring a
number of advanced equipment used for underwater mapping.
"So we'll find objects
with sonar, after which it will be made a map in 3D after the ROV will be
lowered to take visual images in the form of videos and photos," said Chairman
of the Alumni Association of Geodesy ITB incorporated in the survey team, Henky
Suharto, in Tanjung Priok port, Wednesday (12/31/2014).
Multi beam echosounder
Multi beam echosounder,
according to the website National Oceanic and Atmospheric Administration
(NOAA), the tool is used for deep sea survey, determining the location of the
depth of objects such as wrecks, obstructions, and other objects.
This tool will also be taken
of the survey team from the Association of Indonesian Surveyor and Marine
Survey Contractors Association of Indonesia.
This tool, like other sonar
systems, emit sound waves in the form of a fan directly under the hull. The
system measures and records the time it takes an acoustic signal from the
transmitter or transmitter to the bottom of the sea or the object and back
again. From the movement of the acoustic signal, can be known within the depth
of the object.
In this way this device
provides wide area coverage survey. Coverage area on the seabed depending on
the water depth, typically two to four times the water depth.
Side Scan Sonar
The team from the
Association of Indonesian Surveyor and Marine Contractors Association Survey
Indonesia will also carry a side scan sonar. Side scan sonar is a special
system to detect objects on the seabed. Most side scanning system can not
provide in-depth information.
As with other sonar, side scan sonar emits sounds and
analyze energy return signal (echo / echo) who returned from the seabed or
other objects. Side scan sonar usually consists of three basic components: tow fish,
cable transmission, and processing units.
submersible Vehicle
National Search and Rescue Agency (Basarnas) states need
a tool called submersible vehicle to evacuate the aircraft AirAsia flight
number QZ 8501. But Indonesia does not have the tools and the need to borrow
from abroad. What exactly submersible vehicle that?
Submersible vehicle when translated means, of course
diving vehicles. But that does not mean the same as the submarine. When
observed, submersible vehicle looks more compact in size. Quoted from a variety
of sources, submersible vehicle is a small vehicle designed to reach the depths
of the ocean, even to the high-pressure depths humans can not possibly be the
point of that depth.
Submersible vehicle can not
operate on its own like a submarine, but it took a 'mother ship' that is above
the water surface. Which is not fully autonomous vehicles still need the
support of the ship is at sea level, they are connected by some kind of rope or
line.
Submersible just load a
little crew of the space is cramped. These vehicles are designed to withstand
high water pressure in the depths of the ocean. There is also a type of
so-called marine submersible remotely operated vehicles (MROV) who did not take
the crew.
However, what kind
submersible that will be used to evacuate AirAsia? Party Basarnas yet clear
explain. Only, it was not the ROV submersible unmanned.
"We still can not talk
any more, because this is still asking for help. Now they focus on search. If
submersible vehicle was to evacuate. If later you have found the location and
see its depth, the new submersible needed. Submersible there is usually a crew,
and the crew operate , "said Head of Public Relations at the Office Basarnas
Dianta Build Basarnas, Kemayoran, Jakarta, Monday (29/12).
Sumber : Detik.com
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