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Vehicle-mounted acoustic-to-seismic coupling detection device

A detection device, vehicle-mounted technology, applied in measurement devices, seismology, geophysical measurement, etc., can solve the problem of lack of sound-seismic

Active Publication Date: 2015-07-01
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is a lack of a special device for acoustic-seismic coupling theory research, and there is no convenient mechanism that can not only continuously adjust the incident angle of sound waves but also adjust the height of the sound source. The present invention is aimed at this problem.

Method used

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  • Vehicle-mounted acoustic-to-seismic coupling detection device
  • Vehicle-mounted acoustic-to-seismic coupling detection device
  • Vehicle-mounted acoustic-to-seismic coupling detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] After adjusting the sound wave incidence angle of the speaker 4, the speaker carrying vehicle 5 is as follows: Figure 7 shown.

[0037] The vehicle-mounted acoustic-seismic coupling detection device is used to measure the optimal incident angle of acoustic-seismic coupling, and the specific implementation steps are as follows:

[0038] 1) Adjust the positions of the two height adjustment plates 18 on the speaker carrying vehicle 5 so that they are at the top of the arc of the angle adjustment plate 19, that is, the position where the angle value is 90°, and fix the speaker fixing frame 17 At the bottom of the straight grooves 13, 15 on the height adjustment plate 18, ensure that the lower edge of the speaker fixing frame 17 is parallel to the upper edge of the height adjustment plate 18 during installation, and install the speaker 4 with the sound outlet facing downward. In the loudspeaker fixing frame 17;

[0039] 2) Adjust the position of the loudspeaker carrying v...

Embodiment 2

[0049] After adjusting the height of the loudspeaker 4, the loudspeaker carrying car 5 is as follows: Figure 8 shown.

[0050] The vehicle-mounted acoustic-seismic coupling detection device is used to study the influence of sound source height on acoustic-seismic coupling. The specific implementation steps are as follows:

[0051] 1) Adjust the positions of the two height adjustment plates 18 on the speaker carrying vehicle 5 so that they are at the top of the arc of the angle adjustment plate 19, that is, the position where the angle value is 90°, and fix the speaker fixing frame 17 At the bottom of the straight grooves 13, 15 on the height adjustment plate 18, ensure that the lower edge of the speaker fixing frame 17 is parallel to the upper edge of the height adjustment plate 18 during installation, and install the speaker 4 with the sound outlet facing downward. In the loudspeaker fixing frame 17;

[0052] 2) Adjust the position of the loudspeaker carrying vehicle 5 so ...

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Abstract

The invention discloses a vehicle-mounted acoustic-to-seismic coupling detection device, which comprises an acoustic emission system consisting of a signal generator, a sound console, a power amplifier, a loudspeaker and a loudspeaker carrier vehicle, and a surface vibration speed detection system consisting of a seismic detector, a data acquisition card and a computer, wherein the loudspeaker carrier vehicle comprises a loudspeaker fixing frame, a height adjusting plate, an angle adjusting plate, a carrier vehicle base, a universal caster with a stopper and a universal caster without a stopper. The acoustic wave incidence angle and the height of the acoustic source can be continuously adjusted; the vehicle-mounted acoustic-to-seismic coupling detection device can be used for theoretical research of acoustic-to-seismic coupling; and particularly a portable detection device is provided for research on the influence of the optimal incidence angle and the height of the acoustic source of the acoustic-to-seismic coupling on the acoustic-to-seismic coupling efficiency.

Description

technical field [0001] The invention relates to a vehicle-mounted acoustic-seismic coupling detection device, which belongs to the technical field of acoustic-seismic coupling. Background technique [0002] Generally speaking, the shallow surface soil has a porous structure and is compressible. When the sound wave propagates from the air to the ground, most of the energy is reflected back to the air, and a part of the energy is coupled into the soil in the form of seismic waves through the action of momentum and the viscous friction between air and soil particles, and causes vibration on the surface. vibration, a phenomenon known as acoustic-seismic coupling. [0003] When the seismic wave generated by acoustic wave coupling encounters buried objects, it will reflect or scatter, causing changes in the vibration state of the surface above the buried objects. The existence of buried objects can be judged by detecting the changes in the vibration state of the surface. This ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/00
Inventor 王驰丁卫沈高炜周瑜秋于瀛洁
Owner SHANGHAI UNIV