Howtosignalprocessing
How sensitive are hydrophones?
Hydrophone stations use underwater microphones (hydrophones) attached to cables anchored to the seabed 50–100 km offshore and connected by cable to a land facility for data transmission. They are extremely sensitive and pick up acoustic waves from underwater events, including explosions, vast distances away.
What does a hydrophone measure?
When submerged in the ocean, a ceramic hydrophone produces small-voltage signals over a wide range of frequencies as it is exposed to underwater sounds emanating from any direction. By amplifying and recording these electrical signals, hydrophones measure ocean sounds with great precision.
What is transmit voltage response?
The Transmitting Voltage Response is the ratio of the sound pressure at a distance of 1 m from the center of the sphere to the voltage applied to the transducer. The governing differential equations and continuity conditions are the same as those for a spherical hydrophone.
