Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Underwater acoustic measuring device for large-depth broad lake surface

A technology of underwater acoustic measurement and large depth, which is applied to measurement devices, ships used for aircraft, vibration measurement in fluids, etc. problems such as walking, to achieve the effect of simple structure, high reliability and easy implementation

Pending Publication Date: 2019-02-22
NO 719 RES INST CHINA SHIPBUILDING IND
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the self-contained hydrophone is directly thrown on the lake, the hydrophone will easily drift away with the wind on the lake. However, due to the open lake, the depth of the lake is very large, and the underwater situation is not clear, shore anchoring and lake bottom anchoring are used. way to fix very difficult
The underwater acoustic measurement device is installed on the barge. Due to safety reasons, the barge cannot be too close, and the accuracy of the underwater acoustic measurement is difficult to guarantee.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underwater acoustic measuring device for large-depth broad lake surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A hydroacoustic measurement device suitable for large-depth open lakes, the hydroacoustic measurement device includes a drone 1, a buoyancy tank 2, a rigid rope I3, a rigid rope II6, an elastic rope 4 and a self-contained hydrophone 5;

[0018] An accurate GPS positioning system is installed on the UAV 1, and the underwater acoustic measurement device reaches the designated water area through the GPS positioning system, which plays an anchoring role;

[0019] The buoy box 2 is a light floating body, which has no power itself, plays the role of carrying the drone, and plays a protective role when the drone fails and falls; the outer surface and the inner surface of the bottom of the buoy box 2 are respectively processed with Hook, used to fix rigid rope Ⅰ3 and rigid rope Ⅱ6;

[0020] Rigid rope Ⅰ3 and rigid rope Ⅱ6 are long ropes with high rigidity, which are less deformed under the pulling action of UAV 1 and self-contained hydrophone 5, and play a load-bearing role; th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention, which belongs to the technical field of vibration noise control measurement, particular relates to an underwater acoustic measuring device for a large-depth broad lake surface. According to the measuring device, when a GPS positioning system arranged at an unmanned aerial vehicle arrives at a designated water area, an anchoring effect is realized. During the testing process, a buoyancy tank is taken away from the water surface by using the unmanned aerial vehicle and a stabilizer is installed at the side of a self-contained hydrophone, so that the influences by the lake surfacewind flow and underwater ocean current are reduced. With the measuring device, anchoring of the self-contained hydrophone on a large-depth broad lake surface is realized and the influences by the lakesurface wind flow and underwater ocean current are reduced. Moreover, the measuring device has characteristics of simple structure, great easiness in implementation, high reliability, great convenience in mounting, and high environmental adaptability.

Description

technical field [0001] The invention specifically relates to a hydroacoustic measurement device capable of anchoring on a large-depth open lake surface and resisting wind flow on the lake surface, and belongs to the technical field of vibration and noise control measurement. Background technique [0002] Hydrodynamic noise is an important source of radiated noise when underwater vehicles run at high speeds. The floating test method can effectively separate the influence of mechanical noise and propeller noise. This method is also the most effective hydrodynamic noise test method. Floating tests are generally carried out on large-deep open lakes. The traditional test method is to directly tie a self-contained hydrophone and a floating ball, and throw it on the lake to provide independent power for collection; or set up a hydroacoustic measurement device on a barge. If the self-contained hydrophone is directly thrown on the lake, the hydrophone will easily drift away with the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01H3/00B63B35/50
CPCG01H3/00B63B35/50B64U2201/20B64U2101/00
Inventor 张翰钦李佩华如南孙国仓郑国垠
Owner NO 719 RES INST CHINA SHIPBUILDING IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products