CN217212453U - Radial acoustic measuring device and seabed sediment multi-dimensional measuring platform thereof - Google Patents

Abstract

The utility model discloses a radial acoustic measuring device and a seabed sediment multidimensional measuring platform thereof, which comprises a sample container with a curved surface structure on the side wall, a coupling device is arranged outside the curved surface structure, the coupling device comprises an annular closed cavity, the inner wall of the annular closed cavity is tightly attached to the outer surface of the curved surface structure, a first radial transducer and a second radial transducer which are symmetrically arranged on the outer wall of the annular closed cavity are arranged on the two sides of the curved surface structure, the first radial transducer and the second radial transducer are arranged on the outer wall of the annular closed cavity by arranging the coupling device with the annular closed cavity inside outside the sample container, the contact area between the radial transducer and the sample container is increased during measurement, the annular closed cavity is filled with water, and the air between the radial transducer and the sample container can be emptied, the problem that air influences the sound velocity measurement result is avoided, and the accuracy of the measurement result of the radial transducer is improved.

Description

Radial acoustic measuring device and seabed sediment multi-dimensional measuring platform thereof

Technical Field

The utility model relates to a seabed sediment acoustic characteristic measures technical field, especially relates to a radial acoustic measuring device and seabed sediment multidimension degree measuring platform thereof.

Background

The invention discloses a method for measuring seabed surface sediment, namely seabed sediment, which is an interface between seabed seawater and seabed sediment and has important influence on space structure of an underwater sound field and underwater sound transmission loss, wherein the conventional seabed sediment measuring method mainly comprises three methods of in-situ measurement, reflection/refraction profile remote measurement and sampling measurement, for example, the Chinese invention patent with the application number of 202110754778.1 discloses that an in-situ acoustic parameter measuring unit is arranged on a multifunctional platform, a weight is driven to simultaneously insert a vertical sound transmission parameter measuring lance and a transverse sound transmission parameter measuring probe which are arranged on a measuring platform into the sediment during measurement, and sound velocity and attenuation of sound waves transmitted in the sediment are measured according to the steps of a water body measuring method, although the measuring method can simultaneously detect the transverse and vertical acoustic characteristics of the sediment, a detecting device needs to be inserted into the sediment during detection, so that the sediment is disturbed, the measurement accuracy is affected;

the invention discloses a Chinese patent with application number 202111086431.0, a sample tube is vertically fixed on a sample lifting platform, a plurality of oil crusty pancake adjusting frames are arranged on the outer wall of the sample tube along the axial direction of the sample tube, an oil crusty pancake ring energy device is arranged in each oil crusty pancake adjusting frame, the oil crusty pancake energy device is clamped to be in contact with the sample tube when the device is used, the acoustic characteristic of the sample is measured in the radial direction, the problem that the sample is disturbed when the device is measured can be solved by the measuring mode, the device can be fully contacted with the surface of the sample tube after the oil crusty pancake energy device is compressed by applying pressure, the device is influenced by the characteristic of the oil crusty pancake and the thickness of the sample tube in actual operation, the pressure applied to the oil crusty pancake energy device is not controlled well, and the accuracy of a measuring result can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a radial acoustics measuring device and seabed sediment multidimension degree measuring platform thereof, through the sample container outside that is curved surface structure at the lateral wall sets up coupling device, set up the annular closed cavity with curved surface structure's surface laminating in coupling device, set up first radial transducer and the radial transducer of second on the outer wall of annular closed cavity, first radial transducer and the radial transducer of second and sample container's area of contact when having increased the measurement, and be full of water in the annular closed cavity, can also empty first radial transducer and curved surface structure, the air between second radial transducer and the curved surface structure, the problem of air influence sound velocity measurement result has been avoided, the accuracy of radial transducer measurement result has been improved.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a radial acoustic measuring device, which comprises a sample container with a curved surface structure on the side wall, wherein a coupling device is arranged outside the curved surface structure, the coupling device comprises an annular closed cavity, the inner wall of the annular closed cavity is tightly attached to the outer surface of the curved surface structure, and a first radial transducer and a second radial transducer which are symmetrically arranged on the two sides of the curved surface structure are arranged on the outer wall of the annular closed cavity;

preferably, the annular closed cavity is arranged in a sliding manner relative to the curved surface structure, a moving device is fixedly connected to the outer wall of the annular closed cavity, a connecting device is arranged on one side of the moving device, which is far away from the annular closed cavity, and the connecting device is in transmission connection with a driving device;

preferably, the moving device is a first connecting plate, the connecting device is a first nut fixed on the first connecting plate, and an output shaft end of the driving device is connected with a transmission screw rod in threaded fit with the first nut;

preferably, two opposite first lugs are arranged at the edge of the first connecting plate, and a first sliding groove connected with a first sliding rail fixedly arranged is formed in the end part of each first lug;

preferably, a first sealing ring for eliminating a gap between the inner wall and the outer surface is arranged between the inner wall and the outer surface;

the utility model also provides an use seabed sediment multidimension degree measuring platform of radial acoustics measuring device, include radial acoustics measuring device, L type mount, vertically set up sample container and axial acoustics measuring device on the L type mount, axial acoustics measuring device includes first axial transducer and second axial transducer, first axial transducer is located the top of sample container, second axial transducer is located the bottom of sample container, first axial transducer with the second axial transducer be located the central extension line both ends of top surface and bottom surface of sample container respectively;

preferably, the L-shaped fixing frame includes a first transverse plate located at the bottom and vertical plates vertically arranged at two sides of the first transverse plate, a positioning bracket is arranged at the upper part of the first transverse plate, a positioning groove having the same shape and size as the bottom surface of the sample container is formed in the upper surface of the positioning bracket, the bottom surface of the sample container is placed in the positioning groove, the lower surface of the positioning bracket is of a planar structure, the second axial transducer is fixed on the planar structure, the first slide rail is fixedly arranged on the vertical plates, a second connecting plate is arranged between the two vertical plates, and the driving device is fixed on the second connecting plate;

preferably, a clamping device with adjustable height is sleeved outside the curved surface structure of the sample container and close to the top surface of the sample container;

preferably, a third connecting plate is connected to one side of the clamping device, which is far away from the curved surface structure, the third connecting plate is connected with the clamping device in a sliding manner, a second lug is arranged at the edge of the third connecting plate, and a second sliding groove connected with the first sliding rail is formed in the end part of the second lug;

preferably, clamping device is including being located curved surface structure's outside, two splint that set up relatively splint but relative movement, be provided with the second slide rail on the third connecting plate, be equipped with on the splint with the third spout that the second slide rail matches, splint keep away from the one end of second slide rail is equipped with the screw hole, threaded hole is equipped with both ends and stretches out the bolt of screw hole, the other end of bolt is connected with the second nut.

The utility model discloses for prior art gain following technological effect:

1. the utility model discloses a sample container outside that the lateral wall is curved surface structure sets up coupling device, set up the annular closed cavity of laminating with the surface of curved surface structure in coupling device, set up first radial transducer and second radial transducer on the outer wall of annular closed cavity, first radial transducer and second radial transducer and sample container's area of contact when having increased the measurement, and fill up water in the annular closed cavity, can also empty the air between first radial transducer and curved surface structure, second radial transducer and the curved surface structure, avoided the air to influence the problem of sound velocity measurement result, the accuracy of radial transducer measurement result has been improved;

2. the utility model connects the moving device which is connected with the driving device in a transmission way on the outer wall of the annular closed cavity, so that the annular closed space can move up and down, and further drives the first radial transducer and the second radial transducer to move up and down, thereby realizing the purpose of accurately measuring the acoustic characteristics at different axial positions of the sample container;

3. the utility model discloses a establish coupling device at the outer wall cover of sample container, first radial transducer and second radial transducer set up on coupling device's outer wall, and first axial transducer and second axial transducer set up the upper and lower surface at sample container, realize the axial acoustic characteristic that can measure the seabed bottom material, can measure the purpose of its radial acoustic characteristic again, improve measurement of efficiency;

4. the utility model discloses a with the vertical setting of sample container for the composition of each layer is the same behind the seabed sediment sample layering in the sample container, be convenient for obtain accurate radial acoustic characteristic, first radial transducer and the radial transducer of second pass through coupling device and sample container's surface contact, for the direct inside measuring method that penetrates first radial transducer and the radial transducer of second into sample container, reduced the disturbance to seabed sediment sample, further ensured the accuracy of radial acoustic characteristic result.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of a radial acoustic measurement apparatus;

FIG. 2 is a schematic sectional view A-A;

FIG. 3 is a schematic structural diagram of a multi-dimensional measurement platform;

fig. 4 is a partially enlarged view of B.

Wherein, 1, a sample container; 2. a curved surface structure; 3. a coupling device; 4. an annular closed cavity; 5. a first radial transducer; 6. a second radial transducer; 7. a first seal ring; 8. a second seal ring; 9. a first connecting plate; 10. a drive screw; 11. a first lug; 12. a first chute; 13. a first slide rail; 14. an L-shaped fixing frame; 15. a top surface; 16. a bottom surface; 17. a first transverse plate; 18. a vertical plate; 19. positioning the bracket; 20. positioning a groove; 21. a first axial transducer; 22. a second axial transducer; 23. a second connecting plate; 24. a third connecting plate; 25. a second lug; 26. a second chute; 27. a splint; 28. a second slide rail; 29. a third chute; 30. a threaded hole; 31. a bolt; 32. a control panel; 33. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a radial acoustics measuring device and seabed bottom material multidimension degree measuring platform thereof, through the sample container outside that is curved surface structure at the lateral wall sets up coupling device, set up the annular closed cavity with the surface laminating of curved surface structure in coupling device, set up first radial transducer and the radial transducer of second on the outer wall of annular closed cavity, first radial transducer and the radial transducer of second and sample container's area of contact when having increased the measurement, and be full of water in the annular closed cavity, can also empty first radial transducer and curved surface structure, the air between second radial transducer and the curved surface structure, the problem of air influence sound velocity measurement result has been avoided, the accuracy of radial transducer measuring result has been improved.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in figures 1 to 2, the utility model provides a radial acoustic measuring device, which comprises a sample container 1 with a curved surface structure 2 on the side wall, a coupling device 3 is arranged outside the curved surface structure 2, the shape of the coupling device 3 can be one of the shapes of a cuboid, a cube, a triangular prism and the like, the utility model preferably selects the coupling device 3 as the cuboid structure, an annular closed cavity 4 which runs through the upper surface and the lower surface of the coupling device 3 is arranged in the coupling device 3, the inner wall of the annular closed cavity 4 is tightly attached to the outer surface of the curved surface structure 2, the annular closed cavity 4 can slide up and down along the outer surface of the curved surface structure 2, a first radial transducer 5 and a second radial transducer 6 which are symmetrically arranged at the two sides of the curved surface structure 2 are arranged on the outer wall of the annular closed cavity 4, in order to ensure that the inner wall of the annular closed cavity 4 is tightly attached to the outer surface of the curved surface structure 2, the utility model discloses well preferred sets up annular first sealing washer 7 between the inner wall of annular closed cavity 4 and curved surface structure 2's surface, for the front end and the annular closed cavity 4 of ensureing first radial transducer 5 and second radial transducer 6 closely laminate, be provided with second sealing washer 8 between first radial transducer 5 and second radial transducer 6 and the annular closed cavity 4 respectively, be full of water in annular closed cavity 4, empty the air in the annular closed cavity 4, do not have the air between the front end of ensureing first radial transducer 5 and curved surface structure 2 and between the front end of second radial transducer 6 and curved surface structure 2, it influences the sound velocity measurement to get rid of the air, improve the reliability of first radial transducer 5 and the 6 measuring results of second radial transducer.

The outer wall of the annular closed cavity 4 is fixedly connected with a moving device, one side of the outer wall of the moving device, which is far away from the annular closed cavity 4, is fixedly provided with a connecting device, the connecting device is in transmission connection with a driving device, the moving device in the utility model is a first connecting plate 9, the first connecting plate 9 is in threaded connection with the outer wall of the annular closed cavity 4, the connecting device is a first nut (not shown in the figure) fixedly arranged at the back of the first connecting plate 9, the driving device is a motor 33, the output shaft of the motor 33 is connected with a transmission lead screw 10 in threaded fit with the first nut, when the position of the outer wall of the annular closed cavity 4 relative to the curved surface structure 2 is adjusted, the motor 33 is started, the output shaft of the motor 33 drives the transmission lead screw 10 to rotate, along with the rotation of the transmission lead screw 10, the first connecting plate 9 fixedly connected with the first nut moves, and further the position of the outer wall of the annular closed cavity 4 relative to the curved surface structure 2 is changed, because the first radial transducer 5 and the second radial transducer 6 are fixed on the outer wall of the annular closed cavity 4, the axial position of the outer wall of the annular closed cavity 4 relative to the curved surface structure 2 is changed, namely the axial positions of the first radial transducer 5 and the second radial transducer 6 relative to the curved surface structure 2 are changed, so that the acoustic parameters at different axial positions of the curved surface structure 2 can be measured.

In order to ensure the stability of the outer wall of the annular closed cavity 4 during movement, first lugs 11 are respectively arranged at the edges of two sides of the first connecting plate 9, first sliding grooves 12 are formed in the end portions of the first lugs 11, and the two first sliding grooves 12 are respectively connected with first sliding rails 13 which are fixedly arranged on two sides of the sample container 1.

As shown in fig. 3 to 4, the present invention further provides a multidimensional measuring platform using the above radial acoustic measuring device, the multidimensional measuring platform includes an L-shaped fixing frame 14 and a sample container 1 vertically disposed on the L-shaped fixing frame 14, the sample container 1 is internally loaded with a seabed sediment sample, the sample container 1 is vertically disposed, the seabed sediment sample therein can be naturally layered after standing, the seabed sediment components at the same height are the same, the accuracy of the measurement result is improved, for the axial acoustic characteristic measurement, the top surface 15 and the bottom surface 16 of the sample container 1 are both planar structures, the L-shaped fixing frame 14 includes a first horizontal plate 17 and two vertical plates 18 located at both sides of the first horizontal plate 17, a positioning bracket 19 is disposed on the first horizontal plate 17, a positioning groove 20 having the same shape and size as the bottom surface 16 of the sample container 1 is disposed on the upper surface of the positioning bracket 19, the bottom surface 16 of the sample container 1 is placed in the positioning groove 20, the positioning support 19 can be directly fixed on the two vertical plates 18, or an I-shaped connecting plate is fixed on the lower surface of the positioning support 19, and the other end of the I-shaped connecting plate is fixed on the first transverse plate 17, the invention does not limit the specific fixing form of the positioning support 19 and the L-shaped fixing frame 14, as long as the positioning support 19 can be fixed on the L-shaped fixing frame 14, the axial acoustic measuring device comprises a first axial transducer 21 and a second axial transducer 22, the first axial transducer 21 is fixed on the top surface 15 of the sample container 1, the second axial transducer 22 is fixed on the lower surface of the positioning support 19, the first axial transducer 21 and the second axial transducer 22 are respectively positioned at two ends of the axial center extension line of the sample container 1, in order to eliminate the influence of air on the measurement of the axial acoustic characteristics, during the work, usually, the first axial transducer 21 is directly placed on the upper surface of the seabed sediment sample, so that the first axial transducer is directly contacted with the seabed sediment sample, and because the front end of the second axial transducer 22 is tightly attached to the lower surface of the positioning bracket 19, and the positioning groove 20 on the upper surface of the positioning bracket 19 is directly attached to the bottom surface 16 of the sample container 1, no air interference exists between the second axial transducer 22 and the seabed sediment, so that the reliability of the axial acoustic measurement data is improved, and in order to improve the coverage area of the first axial transducer 21 and the second axial transducer 22 during measurement, the first axial transducer 21 and the second axial transducer 22 can adopt broadband transducers, and can also replace transducers with different frequencies.

The two first sliding rails 13 are respectively fixed on the two vertical plates 18, the upper parts of the two vertical plates 18 are fixed with a second connecting plate 23, a motor 33 is fixed on the second connecting plate 23, the lower part of the second connecting plate 23 is also provided with a third connecting plate 24 of which both ends are connected with the vertical plates 18, the third connecting plate 24 is provided with a second lug 25 near the first sliding rail 13, the end part of the second lug 25 far away from the third connecting plate 24 is provided with a second sliding chute 26 matched with the first sliding rail 13, acting force is applied to the second lug 25 to enable the second lug to move along the first sliding rail 13, namely, the position of the third connecting plate 24 can be adjusted, the third connecting plate 24 is fixedly provided with a clamping device, the clamping device comprises two clamping plates 27 symmetrically arranged at the two outer sides of the curved surface structure 2, the two clamping plates 27 can move relatively, the third connecting plate 24 is provided with a second sliding rail 28, the end part of the clamping plate 27 near the third connecting plate 24 is provided with a third sliding chute 29 matched with the second sliding rail 28, the interval between two splint 27 of manual removal splint 27 adjustment, make the internal surface of splint 27 hug closely the surface of curved surface structure 2, then the position of two fixed splint 27 can press from both sides tight sample container 1, the one end that third spout 29 was kept away from to splint 27 is equipped with screw hole 30, be equipped with the bolt 31 that the screw hole 30 was stretched out at both ends in the screw hole 30, the other end of bolt 31 is connected with the nut (not shown in the figure), screw up the nut on bolt 31, can fix the position of two splint 27, through setting up two mobilizable splint 27, make this clamping device can press from both sides the tight sample container 1 of different thickness, through adjusting the position of third connecting plate 24, drive the clamping device who is connected with it and reciprocate, make this clamping device can press from both sides the tight sample container 1 of co-altitude not, with this application scope who increases this clamping device.

A control panel 32 is further fixed on the vertical plate 18 on one side, the control panel 32 is electrically connected with a motor 33, when the device works, the position of the clamping device is firstly adjusted to enable the clamping device to clamp the top of the sample container 1, the first axial transducer 21 and the second axial transducer 22 are started to measure the axial acoustic characteristics of the sample container 1, then the control panel 32 is operated to start the motor 33, the position of the first connecting plate 9 on the curved surface structure 2 is adjusted to enable the first radial transducer 5 and the second radial transducer 6 to measure the acoustic characteristics of the sample container 1 at different axial positions, after the measurement is completed, the clamping device is loosened, and the sample container 1 is taken out.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims (10)

1. A radial acoustic measuring device comprises a sample container with a side wall of a curved surface structure, and is characterized in that: the outside of curved surface structure is equipped with coupling device, coupling device includes an annular closed cavity, the inner wall of annular closed cavity with the surface of curved surface structure closely laminates, be provided with symmetrical arrangement on the outer wall of annular closed cavity and be in the radial transducer of the first radial transducer and the second of curved surface structure both sides.

2. The radial acoustic measurement device of claim 1, wherein: the annular closed cavity is arranged in a sliding mode relative to the curved surface structure, a moving device is fixedly connected to the outer wall of the annular closed cavity, a connecting device is arranged on one side, deviating from the annular closed cavity, of the moving device, and the connecting device is connected with a driving device in a transmission mode.

3. The radial acoustic measurement device of claim 2, wherein: the moving device is a first connecting plate, the connecting device is a first nut fixed on the first connecting plate, and an output shaft end of the driving device is connected with a transmission lead screw in threaded fit with the first nut.

4. The radial acoustic measurement device of claim 3, wherein: the edge of the first connecting plate is provided with two opposite first lugs, and the end part of each first lug is provided with a first sliding groove connected with a first fixedly-arranged sliding rail.

5. The radial acoustic measurement device of claim 4, wherein: and a first sealing ring for eliminating a gap between the inner wall and the outer surface is arranged between the inner wall and the outer surface.

6. A multi-dimensional measuring platform for seabed sediment, which is applied with the radial acoustic measuring device of claims 1-5, and is characterized in that: include radial acoustics measuring device, L type mount, vertical setting are in sample container and axial acoustics measuring device on the L type mount, axial acoustics measuring device includes first axial transducer and second axial transducer, first axial transducer is located the top of sample container, second axial transducer is located the bottom of sample container, first axial transducer with second axial transducer is located respectively the top surface of sample container and the central extension line both ends of bottom surface.

7. The seafloor sediment multi-dimensional measurement platform of claim 6, wherein: the L-shaped fixing frame comprises a first transverse plate and vertical plates, the first transverse plate is located at the bottom, the vertical plates are vertically arranged on two sides of the first transverse plate, a positioning support is arranged on the upper portion of the first transverse plate, positioning grooves which are identical to the bottom surface of the sample container in shape and size are formed in the upper surface of the positioning support, the bottom surface of the sample container is placed in the positioning grooves, the lower surface of the positioning support is of a planar structure, a second axial transducer is fixed to the planar structure, a first sliding rail is fixedly arranged on each vertical plate, a second connecting plate is arranged between the vertical plates, and a driving device is fixed to the second connecting plate.

8. The seafloor sediment multi-dimensional measurement platform of claim 7, wherein: the height-adjustable clamping device is sleeved outside the curved surface structure of the sample container and close to the top surface of the sample container.

9. The multi-dimensional measuring platform for seafloor sediments as claimed in claim 8, wherein: one side, far away from the curved surface structure, of the clamping device is connected with a third connecting plate, the third connecting plate is connected with the clamping device in a sliding mode, a second lug is arranged on the edge of the third connecting plate, and a second sliding groove connected with the first sliding rail is formed in the end portion of the second lug.

10. The seafloor sediment multi-dimensional measurement platform of claim 9, wherein: clamping device is including being located the outside of curved surface structure, two splint that set up relatively splint but relative movement, be provided with the second slide rail on the third connecting plate, be equipped with on the splint with the third spout that the second slide rail matches, splint keep away from the one end of second slide rail is equipped with the screw hole, threaded hole is equipped with both ends and stretches out the bolt of screw hole, the other end of bolt is connected with the second nut.

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