A high-precision single-beam transducer

Abstract

The utility model relates to a transducer technical field especially relates to a kind of high-precision single-beam transducer, including mounting seat, three transmitting transducers and receiving transducer.The utility model provides a kind of high-precision single-beam transducer, simple structure, processing technology difficulty is lower, and low cost;Three transmitting transducers are laid on trapezoidal shape transmitting surface, can effectively improve the comprehensive transmitting opening angle of transmitting transducer on the basis of controlling processing difficulty and processing cost, to achieve the purpose of larger transmitting opening angle;By setting the threaded mounting hole and the lead hole, according to actual monitoring demand, transmitting transducer is replaced and maintained, so as to improve the practicality and flexibility of the high-precision single-beam transducer;By separating the transmitting transducer and receiving transducer arrangement, and combining the multi-channel receiving array design of receiving transducer, the depth accuracy of high-precision single-beam system can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of transducer technology, and in particular to a high-precision single-beam transducer. Background Technology

[0002] For long-term underwater monitoring applications, existing technologies typically employ single-beam or multi-beam systems, carried out periodically via carriers (such as unmanned surface vessels and unmanned underwater vehicles). However, for applications requiring large-scale deployment and long-term fixed-point monitoring, single-beam systems suffer from low testing accuracy. While multi-beam systems can meet the accuracy requirements, they are more expensive and cannot be deployed in large numbers. Furthermore, existing transducers often employ curved transducers to achieve a larger emission angle. For example, the emission surface of a multi-beam transducer in a multi-beam system is semi-cylindrical. Compared to planar transducers, curved transducers can increase the emission angle, but they are more difficult to manufacture and more expensive. Planar transducers, while cheaper and simpler to manufacture, cannot achieve the larger emission angle of curved transducers.

[0003] Therefore, this utility model provides a high-precision single-beam transducer. Utility Model Content

[0004] Therefore, it is necessary to provide a high-precision single-beam transducer to address the aforementioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A high-precision single-beam transducer includes a mounting base, three transmitting transducers and a receiving transducer. The three transmitting transducers are detachably connected to the mounting base and are arranged in a trapezoidal shape on the mounting base. The receiving transducer is fixedly connected to the mounting base and adopts a multi-channel receiving array.

[0006] As a further embodiment of this utility model, the mounting base includes a transmitting structure and a receiving structure. The transmitting structure has a trapezoidal transmitting surface, and three transmitting transducers are arranged on the trapezoidal transmitting surface. The transmitting structure and the receiving structure are an integrated structure.

[0007] As a further embodiment of this invention, the three transmitting transducers emit at the same or different center frequencies, with a horizontal opening angle of 1.5° and a vertical directivity of >40°.

[0008] As a further improvement of this invention, the emission opening angle of each of the transmitting transducers is 40°.

[0009] As a further embodiment of this utility model, the transmitting structure is provided with a threaded mounting hole for fixing and installing the transmitting transducer and a lead hole for passing through the transmitting transducer wire.

[0010] As a further embodiment of this utility model, the receiving transducer is fitted and installed on the receiving structure, and the receiving transducer adopts a 32-channel receiving array.

[0011] The advantages and beneficial effects of this utility model are as follows: This utility model provides a high-precision single-beam transducer with a simple structure, low processing difficulty, and low cost; by arranging three transmitting transducers on a trapezoidal transmitting surface, the overall transmission opening angle of the transmitting transducers can be effectively improved while controlling the processing difficulty and cost, thereby achieving a larger transmission opening angle; by setting threaded mounting holes and lead holes, the transmitting transducers can be replaced and repaired according to actual monitoring needs, thus improving the practicality and flexibility of this high-precision single-beam transducer; by separating the transmitting and receiving transducers and combining them with a multi-channel receiving array design for the receiving transducer, the depth measurement accuracy of the high-precision single-beam system can be effectively improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a high-precision single-beam transducer according to the present invention.

[0013] Figure 2 This is a schematic diagram of the mounting base of this utility model.

[0014] Reference numerals: 1. Mounting base; 2. Transmitting transducer; 3. Receiving transducer; 4. Transmitting structure; 5. Trapezoidal transmitting surface; 6. Threaded mounting hole; 7. Lead wire hole; 8. Detailed Implementation

[0015] The embodiments of this application will now be described in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Furthermore, the following embodiments and features can be combined with each other unless otherwise specified. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0016] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0017] To address the need for long-term, fixed-point monitoring of underwater sediments and topographic erosion, this application provides a high-precision single-beam transducer. This high-precision single-beam transducer achieves a larger transmission opening angle by arranging and installing the transmitting transducers with a smaller opening angle in a trapezoidal pattern, while controlling the difficulty of the process and the manufacturing cost. At the same time, the receiving transducer, which adopts a multi-channel receiving array design, can effectively improve the signal-to-noise ratio and depth sounding accuracy.

[0018] Reference Appendix Figure 1-2 A high-precision single-beam transducer includes a mounting base 1, three transmitting transducers 2 and a receiving transducer 3. The three transmitting transducers 2 are detachably connected to the mounting base 1 and are arranged in a trapezoidal shape on the mounting base 1. The receiving transducers 3 are fixedly connected to the mounting base 1 and adopt a multi-channel receiving array.

[0019] In other embodiments of this utility model, the mounting base 1 includes a transmitting structure 5 and a receiving structure 4. The transmitting structure 5 is provided with a trapezoidal transmitting surface 6, and three transmitting transducers 2 are arranged on the trapezoidal transmitting surface 6. The transmitting structure 5 and the receiving structure 4 are an integrated structure.

[0020] In other embodiments of this utility model, the three transmitting transducers 2 can transmit at the same center frequency or at different center frequencies according to the actual sonar system requirements. The horizontal opening angle is 1.5°, the vertical directivity is >40°, the transmission opening angle of each transmitting transducer is 40°, and the combined transmission opening angle can reach more than 120° in order to improve detection efficiency.

[0021] In other embodiments of this utility model, the emitting surface of this utility model is trapezoidal. Compared with traditional curved surface emitting transducers (such as application number CN201911044828.6) and planar emitting transducers, it can effectively improve the overall emitting angle of the emitting transducer 2 (the overall emitting angle can reach more than 120°) while reducing the difficulty of the process and the processing cost, so as to achieve the purpose of a larger emitting angle.

[0022] In other embodiments of this utility model, the transmitting structure 5 is provided with a threaded mounting hole 7 for fixing and installing the transmitting transducer 2 and a lead hole 8 for passing through the transmitting transducer 2 wires.

[0023] In other embodiments of this utility model, to facilitate the disassembly and assembly of the transmitting transducer 2, the transmitting transducer 2 and the transmitting structure part 5 are connected in a detachable manner. By providing threaded mounting holes 7 on the transmitting structure part 5 and combining them with bolts, the transmitting transducer 2 can be fixedly installed on the transmitting structure part 5. At the same time, lead wire holes 8 are also provided on the transmitting structure part 5 to facilitate the replacement and maintenance of the transmitting transducer 2 according to actual monitoring needs, so as to improve the practicality and flexibility of this high-precision single-beam transducer.

[0024] In other embodiments of this utility model, the receiving transducer 3 is fitted and installed on the receiving structure part 4, and the receiving transducer 3 adopts a 32-channel receiving array.

[0025] In other embodiments of this utility model, the receiving transducer 3 and the receiving structure 4 are integrated into a single structure. The receiving array adopts a 32-channel design. Unlike the traditional single-beam transducer design with combined transmitting and receiving, this utility model features a single-beam transducer with separate transmitting and receiving, and incorporates the design concept of a multi-beam transducer receiving array. This not only facilitates high-resolution target positioning but also effectively improves the depth measurement accuracy of the high-precision single-beam transducer. At the same time, it avoids the severe signal reverberation problem caused by the combined transmitting and receiving structure of the traditional single-beam transducer, achieving the effect of suppressing environmental noise, improving the signal-to-noise ratio, and adapting to the complex conditions of long-term underwater topographic monitoring. The improvement effect is even more significant in areas with severe reverberation or turbulence interference.

[0026] In other embodiments of this utility model, the high-precision single-beam transducer involved in this utility model can also adopt frequency division multiplexing technology (which is the prior art), so that the single-beam transducer can effectively reduce the error of the received signal and improve the measurement accuracy of the overall structure during measurement work, so as to output high-precision underwater topographic measurement results.

[0027] In summary, the high-precision single-beam transducer provided by this utility model has a simple structure, is easy to process, convenient to use, and easy to disassemble and replace. It has advantages such as a large transmission angle and high depth sounding accuracy. It can be applied to complex conditions for long-term underwater topographic monitoring, and its improvement effect is more significant in areas with severe reverberation or turbulence interference.

[0028] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A high-precision single-beam transducer, characterized in that, It includes a mounting base, three transmitting transducers and a receiving transducer. The three transmitting transducers are detachably connected to the mounting base and are arranged in a trapezoidal shape on the mounting base. The receiving transducer is fixedly connected to the mounting base and adopts a multi-channel receiving array.

2. The high-precision single-beam transducer according to claim 1, characterized in that, The mounting base includes a transmitting structure and a receiving structure. The transmitting structure has a trapezoidal transmitting surface, and three transmitting transducers are arranged on the trapezoidal transmitting surface. The transmitting structure and the receiving structure are an integrated structure.

3. A high-precision single-beam transducer according to claim 2, characterized in that, The three transmitting transducers emit at the same or different center frequencies, with a horizontal opening angle of 1.5° and a vertical directivity of >40°.

4. A high-precision single-beam transducer according to claim 3, characterized in that, The emission opening angle of each of the aforementioned emission transducers is 40°.

5. A high-precision single-beam transducer according to claim 2, characterized in that, The transmitting structure has threaded mounting holes for fixing and installing the transmitting transducer and lead holes for passing through the transmitting transducer wires.

6. A high-precision single-beam transducer according to claim 2, characterized in that, The receiving transducer is fitted and installed on the receiving structure, and the receiving transducer adopts a 32-channel receiving array.

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