The invention provides a disposable
submarine sediment acoustic characteristic in-situ
measuring instrument, which belongs to the technical field of geophysical detection equipment and consists of a disposable part and a floating part. The throwing and abandoning part comprises an acoustic probe rod, a counterweight and a fusing separation mechanism, so that the instrument sinks and is in contact with the
seabed; the floating part comprises a battery cabin, a fusing cabin, an electronic cabin and a
buoyancy module and is used for controlling,
data collecting and floating. The acoustic probe rod is provided with a receiving
transducer, the counter weight provides gravity needed by sinking, and the fusing separation mechanism achieves separation of the throwing part and the floating part. The battery cabin provides a power supply, a fuse is arranged in the fusing cabin, and the electronic cabin comprises an electronic device, an
underwater wet plugging connector and the like. The
buoyancy module controls the sinking posture of the instrument and
data transmission in the upward floating process through the empennage and the antenna. The
measuring instrument solves the problems that an existing disposable
measuring instrument cannot measure the acoustic characteristics of
seabed sediments, the sinking process is unstable, and floating separation is unreliable.