1. A transverse and longitudinal wave separation and dissociation analysis method based on a three-dimensional space technology is characterized by comprising the following steps:

s1: a universal rotating shaft is arranged on the lower side of the cross beam, and the lower end of the universal rotating shaft is connected with a first analysis plate;

s2: a second analysis plate is coaxially arranged below the first analysis plate, a driving motor is arranged at the lower end of the first analysis plate, a motor shaft of the driving motor is connected with the second analysis plate, and a projection lamp is arranged at the lower side of the second analysis plate;

s3: a generator for sending out detection waves, a first receiver and a second receiver for receiving feedback waves are arranged on the cross beam, the first receiver is electrically connected with a longitudinal wave vibrator arranged on the universal rotating shaft, and the second receiver is electrically connected with a transverse wave vibrator arranged on the universal rotating shaft;

s4: starting a driving motor to drive a second analysis plate to rotate, and arranging an arc-shaped light curtain for receiving the irradiation of the projection lamp below the second analysis plate to obtain an irradiation track;

s5: and obtaining the actual feedback wave after the separation and analysis of the transverse wave and the longitudinal wave by obtaining the irradiation track curve on the arc-shaped light curtain.

2. The method of claim 1, wherein the method comprises:

in step S1, a crash pad is provided at the end of the beam.

3. The method of claim 1, wherein the method comprises:

in step S2, the outer diameter of the second analysis plate is not greater than the outer diameter of the first analysis plate.

4. The method of claim 1, wherein the method comprises:

in step S2, the number of the projection lamps is at least one, and a plurality of the projection lamps are disposed around the edge of the lower side of the second analysis plate.

5. The method of claim 1, wherein the method comprises:

in step S3, the longitudinal wave oscillator and the transverse wave oscillator are both disposed at the end of the universal shaft close to the first analysis plate.

6. The method of claim 1, wherein the method comprises:

in step S4, each of the arc-shaped light curtains is located at the same distance from the center of the second analysis plate.

7. The method of claim 4, wherein the method comprises:

when step S4 is executed, the trajectory of the center of the projection lamp is obtained as the irradiation trajectory.

8. The method of claim 7, wherein the method comprises:

and step S5 is executed to obtain the illumination trajectory curve of each projection lamp on the arc light curtain, integrate and eliminate the error value, and obtain the actual feedback wave after the transverse and longitudinal waves are separated and analyzed.

Background

With the rapid progress of the technology, the exploration of the ocean is more and more emphasized, the topography of the sea bottom is complex, particularly the detection of deep sea areas is very complex, and most of the existing methods are analyzed according to the situation of detecting the sea bottom by sonar.

However, the sound waves of sonar include transverse waves and longitudinal waves, and especially the number of longitudinal waves caused by the change of submarine topography is greatly increased, so that the transverse waves and the longitudinal waves need to be analyzed at the same time when the submarine is detected, but no matter what kind of longitudinal waves are detected, high detection accuracy is needed, and the transmission speed difference between the transverse waves and the longitudinal waves generates interference, so that the interference between the transverse waves and the longitudinal waves needs to be eliminated to accurately acquire submarine information, for example, chinese patent invention CN111257413A discloses a three-dimensional in-situ real-time submarine sediment acoustic section scanning device, and belongs to the field of marine geological detection. The underwater acoustic signal transmission device comprises a supporting frame, wherein an underwater acoustic communicator, a control unit, an acoustic signal transmission and acquisition unit and a penetration system are arranged on the supporting frame, and a plurality of acoustic probes are arranged on the penetration system; each acoustic probe rod is at least provided with a plurality of longitudinal wave transducers or at least a plurality of transverse wave transducers in the longitudinal direction; one longitudinal wave transducer is used as a transmitting transducer, and the longitudinal wave transducers in other acoustic probe rods are used as receiving transducers; or one of the transverse wave transducers is used as a transmitting transducer, and the transverse wave transducers in the other acoustic probes are used as receiving transducers; and each longitudinal wave transducer or each transverse wave transducer is in communication connection with the acoustic signal transmitting and collecting unit. The invention can obtain the three-dimensional longitudinal wave and transverse wave characteristics of the submarine sediments in real time; and obtaining the saturation of the natural gas hydrate in the sediment of the measuring area through inversion of the relation between the saturation of the hydrate and the elastic wave velocity.

However, the above detection method still has the following disadvantages: the structure is complicated, and manufacturing cost is high, uses the trouble, needs a large amount of accurate operations during the survey and drawing, and survey efficiency is underneath, and application scope is little, can't carry out industrial volume production, surveys the accuracy and hangs down.

Therefore, in order to solve the above problems, it is necessary to design a reasonable transversal and longitudinal wave separation analysis method based on three-dimensional space technology.

Disclosure of Invention

The invention aims to provide a transverse wave and longitudinal wave dissociation analysis method based on a three-dimensional space technology, which has the advantages of simple structure, convenience in use, high analysis efficiency, high accuracy, low production cost and capability of separating and analyzing transverse waves and longitudinal waves without accurate debugging, and eliminating interference between the transverse waves and the longitudinal waves.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

a transverse and longitudinal wave separation and dissociation analysis method based on a three-dimensional space technology comprises the following steps:

s1: a universal rotating shaft is arranged on the lower side of the cross beam, and the lower end of the universal rotating shaft is connected with a first analysis plate;

s2: a second analysis plate is coaxially arranged below the first analysis plate, a driving motor is arranged at the lower end of the first analysis plate, a motor shaft of the driving motor is connected with the second analysis plate, and a projection lamp is arranged at the lower side of the second analysis plate;

s3: a generator for sending out detection waves, a first receiver and a second receiver for receiving feedback waves are arranged on the cross beam, the first receiver is electrically connected with a longitudinal wave vibrator arranged on the universal rotating shaft, and the second receiver is electrically connected with a transverse wave vibrator arranged on the universal rotating shaft;

s4: starting a driving motor to drive a second analysis plate to rotate, and arranging an arc-shaped light curtain for receiving the irradiation of the projection lamp below the second analysis plate to obtain an irradiation track;

s5: and obtaining the actual feedback information after the separation and analysis of the transverse and longitudinal waves by obtaining the irradiation track curve on the arc-shaped light curtain.

Preferably, in step S1, a crash pad is provided at the end of the cross beam.

Preferably, in step S2, the second analysis plate has an outer diameter not larger than that of the first analysis plate.

Preferably, in step S2, the number of the projection lamps is at least one, and the plurality of projection lamps are disposed around the edge of the lower side of the second analysis plate.

In the present invention, it is preferable that, when step S3 is executed, both the longitudinal wave transducer and the transverse wave transducer are provided at the end of the gimbal near the first analysis plate.

As a preferred aspect of the present invention, step S4 is performed such that each of the arc-shaped light curtains is equidistant from the center of the second analysis plate.

Preferably, in step S4, the irradiation trajectory is obtained as a trajectory of the center of the projection position of the projection lamp.

Preferably, in step S5, an illumination trajectory curve of each projection lamp on the arc light curtain is obtained, and the error values are integrated and eliminated to obtain an actual feedback wave after the transversal and longitudinal waves are separated and analyzed.

The invention discloses a transverse and longitudinal wave separation and dissociation analysis method based on a three-dimensional space technology, which has the beneficial effects that: simple structure, convenient to use need not accurate debugging, just can separate the analysis to shear wave and compressional wave, eliminates the interference between the shear wave and the compressional wave, and analytic efficient, the accuracy is high, and low in production cost, can produce in a large number and use.

Drawings

FIG. 1 is a schematic flow chart of a method for analyzing transverse and longitudinal wave separation based on three-dimensional space technology.

Detailed Description

The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and structures set forth in these embodiments does not limit the scope of the invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

Example (b): as shown in fig. 1, which is only one embodiment of the present invention, a method for transversal and longitudinal wave separation and dissociation analysis based on three-dimensional space technology includes the following steps:

s1: a universal rotating shaft is arranged on the lower side of the cross beam, and the lower end of the universal rotating shaft is connected with a first analysis plate;

namely, a universal rotating shaft is suspended below the cross beam, the universal rotating shaft can rotate around the joint of the universal rotating shaft and the cross beam at will, and under the general condition and without external interference, the universal rotating shaft vertically extends downwards. The lower extreme of universal rotating shaft is connected to the middle part of first analytic board, and first analytic board level setting so.

Of course, when step S1 is executed, a vibration-proof pad is disposed at the end of the cross beam to prevent the vibration from the outside of the cross beam from interfering with the universal shaft.

S2: a second analysis plate is coaxially arranged below the first analysis plate, a driving motor is arranged at the lower end of the first analysis plate, a motor shaft of the driving motor is connected with the second analysis plate, and a projection lamp is arranged at the lower side of the second analysis plate;

the second analysis plate and the first analysis plate are arranged in parallel and coaxially below the first analysis plate, and in fact, the universal rotating shaft, the first analysis plate, the motor shaft and the second analysis plate are all arranged coaxially.

When the driving motor works, the second analysis plate rotates around the motor shaft and is kept parallel to the first analysis plate, the projection lamp on the lower side of the second analysis plate also rotates around the motor shaft, and the position projected by the light of the projection lamp also rotates around the motor shaft.

Moreover, the outer diameter of the second analysis plate is not larger than that of the first analysis plate, so that the second analysis plate is better in stability when rotating and higher in analysis accuracy.

And, when step S2 is executed, the number of the projection lamps is at least one, and a plurality of projection lamps are disposed around the edge of the lower side of the second analysis plate, preferably, each projection lamp is at the same distance from the motor shaft, and the positions of the projection lamps projected by all the projection lamps are substantially the same.

S3: a generator for sending out detection waves, a first receiver and a second receiver for receiving feedback waves are arranged on the cross beam, the first receiver is electrically connected with a longitudinal wave vibrator arranged on the universal rotating shaft, and the second receiver is electrically connected with a transverse wave vibrator arranged on the universal rotating shaft;

in fact, generator, first receiver and second receiver are equivalent to simple sonar sound production sound collecting device, and the generator sends the ultrasonic wave to the seabed, and the ultrasonic wave returns and is received by first receiver and second receiver, and theoretically, the sound wave feedback signal that first receiver and second receiver received is the same.

The first receiver is electrically connected with a longitudinal wave vibrator arranged on the universal rotating shaft, the second receiver is electrically connected with a transverse wave vibrator arranged on the universal rotating shaft, and the longitudinal wave vibrator and the transverse wave vibrator are both arranged at the end part of the universal rotating shaft close to the first analysis plate, namely, the sound wave received by the first receiver is used for eliminating the transverse wave, only the longitudinal wave vibrator is caused to vibrate longitudinally, the end part of the universal rotating shaft is driven to vibrate longitudinally, and the second analysis plate and the first analysis plate vibrate longitudinally; similarly, the sound waves received by the second receiver reject longitudinal waves, only the transverse wave oscillator is caused to transversely vibrate, the end part of the universal rotating shaft is driven to transversely vibrate, and the second analysis plate and the first analysis plate transversely vibrate.

Then, the acoustic feedback signals received by the first receiver and the second receiver are the same. However, the propagation velocity difference between the transverse wave and the longitudinal wave causes a difference in the time for which the wave oscillator vibrates longitudinally and the transverse wave oscillator vibrates transversely, and thus the time for which the second analysis plate vibrates in both directions from the first analysis plate is different from the time for which the transverse wave oscillator vibrates transversely.

S4: starting a driving motor to drive a second analysis plate to rotate, and arranging an arc-shaped light curtain for receiving the irradiation of the projection lamp below the second analysis plate to obtain an irradiation track;

formal detection is started below, when the driving motor is required to drive the second analysis plate to rotate to a balanced state, the generator sends ultrasonic waves to the seabed, the ultrasonic waves are returned to be received by the first receiver and the second receiver, then the second analysis plate and the first analysis plate vibrate in two directions successively, and the irradiation track formed by the light of the projection lamp irradiating on the arc light curtain can vibrate in two directions and is not a perfect circle around the motor shaft any more.

Preferably, when step S4 is executed, each position of the arc-shaped light curtain is equidistant from the center of the second analysis plate, so that the illumination track can be read more easily when the arc-shaped light curtain is unfolded, and of course, the track of the center of the projection position of the projection lamp is obtained as the illumination track.

S5: and obtaining the actual feedback information after the separation and analysis of the transverse and longitudinal waves by obtaining the irradiation track curve on the arc-shaped light curtain.

Actually, an irradiation track curve of each projection lamp on the arc-shaped light curtain is obtained, projection and vibration of each projection lamp are theoretically the same, a plurality of results are compared, one with the largest error is eliminated, a plurality of results are analyzed, error values are integrated and eliminated, and an actual feedback wave after transverse and longitudinal wave separation and analysis is obtained.

The transverse wave and longitudinal wave separation and analysis method based on the three-dimensional space technology is simple in structure, convenient to use, capable of separating and analyzing the transverse waves and the longitudinal waves without accurate debugging, capable of eliminating interference between the transverse waves and the longitudinal waves, high in analysis efficiency, high in accuracy, low in production cost and capable of being produced and used in large quantities.

The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.