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Vehicle-mounted acoustic-to-seismic coupling detection device

A detection device and vehicle-mounted technology, which can be used in measuring devices, seismology, geophysical measurement, etc., and can solve the problems of lack of acoustic-seismic

Active Publication Date: 2012-11-07
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
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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 present invention involves a car sound-earthquake coupling detection device, which belongs to the field of sound-earthquake coupling technology. Background technique [0002] Generally speaking, shallow surface soil -tiered porosity structures are compressed.When the sound waves are transmitted from the air to the ground, most of the energy is reflected back to the air, and some energy can be coupled in the soil in the form of earthquake waves through the action of momentum and the stagnation of air and soil particles.Vibration, this phenomenon is called sound-earthquake coupling. [0003] When the earthquake waves generated by the sound wave coupling encounters buried objects, reflection or scattering will occur, causing the vibration state changes above the surface of the buried object. The vibration state changes in the surface can be judged to determine the existence of buried burials.This has potential application prospects in the field of mines.Ho...

Claims

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Application Information

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