Sensors Make the Ocean a Bad Hiding Place
Small submarine drones, permanent sensors on the ocean floor, and planes equipped with quantum magnetometers are to make sure that no submarines can move undetected about the South China Sea.
DRONES SENT ON PATROL
If a submarine is visible to sonar, submarine drones can be used to find the submarine with optical sensors. They can also patrol the waters for months.
SONAR SEARCHES THE OCEAN FLOOR
A fine-meshed network of passive sonar sensors will be placed on the ocean floor. They can emit sound, using the echo to spot, if the sound has struck objects.
BUOYS LISTEN TO THE OCEAN
Hydrophones – micro-phones for underwater use – are anchored at different depths. The mikes’ transducer converts sound waves into electric signals.