Synchronous multi-parameter acquisition type self-contained hydrophone and array design method thereof

Abstract

The invention provides a synchronous multi-parameter acquisition type self-contained hydrophone and an array design method thereof. The synchronous multi-parameter acquisition type self-contained hydrophone comprises a hydrophone cabin, an electronic cabin, a sensor cabin, a power supply module, a hydrophone body, a pre-amplifier unit, a band-pass filter, a differential driver, an A / D conversion unit, an SD card, a control circuit, a synchronous circuit, and a temperature pressure sensor. The power supply module provides power for the pre-amplifier unit, the band-pass filter, the differentialdriver, the A / D conversion unit, the SD card, the control circuit, the synchronous circuit, and the temperature pressure sensor simultaneously. The hydrophone has various parameters to meet differentmeasurement requirements and has functions of ultra-low power consumption, large-capacity storage, sleeping, fixed-time startup and the like to adapt to different working environments. The self-contained hydrophone has the microsecond accurate synchronization and online monitoring functions and anti-winding, quick dismounting and mounting, and hydrophone space changing characteristics; convenienceis provided for forming an array; and the application value is great.

Description

technical field [0001] The invention belongs to the field of self-contained hydrophones and arrays, and in particular relates to a multi-parameter synchronous acquisition self-contained hydrophone and an array design method. Background technique [0002] With the deepening of my country's participation in economic globalization and regional economic integration, the ocean is more and more involved in my country's strategic interests, affecting my country's economic lifeline, and affecting my country's security and social stability. The movement of sea water, the noise of the wind and the atmosphere acting on the sea surface, the noise caused by the movement or melting of the thick ice layer, the low-frequency sound waves caused by the changes in the geological structure of the seabed, the sound of organisms in the sea, etc. These are the noises of the ocean itself. Marine environmental noise is the resident sound field in the ocean. On the one hand, it is the interference ba...

AI Technical Summary

Problems solved by technology

[0004] At present, the self-contained hydrophones used for ocean monitoring on the market have single functions, do not have temperature and pressure measurement functions, and have low synchronization accuracy and cannot meet the requirements of array signal processing.

The hydrophone array used for array signal processing generally adopts a certain number of hydrophones arranged at set intervals, connected by cables, and then filled with oil or glue in the sheath to form a line array. This method has an array element interval position It is fixed and cannot be changed, and the deep-sea array is large in size and heavy, and it is difficult to deploy and recover at sea. Once damaged, the entire array will be damaged and difficult to repair.

Images