CN111273295A - Underwater height measuring instrument - Google Patents
Underwater height measuring instrument Download PDFInfo
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- CN111273295A CN111273295A CN202010107602.2A CN202010107602A CN111273295A CN 111273295 A CN111273295 A CN 111273295A CN 202010107602 A CN202010107602 A CN 202010107602A CN 111273295 A CN111273295 A CN 111273295A
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- cabin
- underwater
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- 238000007789 sealing Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 13
- 238000004073 vulcanization Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000004382 potting Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/521—Constructional features
Abstract
The invention discloses an underwater altimeter, which relates to the technical field of underwater distance measurement and comprises a transducer assembly, a sealed cabin assembly and a machine core supporting assembly, wherein the transducer assembly comprises a transducer array and a transducer shell, and the transducer array is arranged in the transducer shell; the sealed cabin assembly comprises a cabin shell and a top end cover, the upper end surface of the cabin shell is connected with the top end cover through bolts, a watertight connector is arranged in the center of the top end cover, and the outer side wall of the transducer shell is attached to the lower end of the inner side wall of the cabin shell; the machine core supporting assembly is arranged inside the cabin body shell and comprises a bottom supporting plate, a top supporting plate, a machine core supporting column and a machine core mother plate, wherein the bottom supporting plate is horizontally arranged on the upper end face of the transducer shell and is connected with the transducer shell through a bolt; the invention has the advantages of convenient assembly and disassembly, high precision, strong anti-interference capability, stable work and high compression strength.
Description
Technical Field
The invention relates to the technical field of underwater distance measurement, in particular to an underwater altimeter.
Background
The underwater depth detection equipment directionally emits sound waves with certain frequency through a high-frequency transducer, the sound waves are transmitted out, the sound waves are reflected when encountering obstacles, the round-trip time of the sound waves is recorded, and then the distance from the obstacle to sonar is calculated according to the speed of the sound waves in a medium. The height measuring instrument detects the height of a transducer array of the height measuring instrument from the sea floor by using an ultrasonic distance measuring technology, can be arranged on different underwater and water surface platforms and is used for measuring the distance between a carrier platform and the sea floor or an obstacle, and measuring result data is output through an RS232 serial port. The transducers of the basic working principle of the height measuring instrument respectively emit short sound pulses, the sound waves generate backscattering waves (also called echo) when contacting objects on the sea bottom or in water, the echo returns to the transducers according to the original propagation route and is received by the transducers, the echo is converted into a series of electric signals through the transducers, and the series of electric signals are processed and displayed as depth information.
The height gauge in the prior art has the following problems:
1. the precision is not high, and the circuit designed by adopting the integrated chip has limitation, so that the capability of the whole system for resisting external interference is poor;
2. the work is relatively unstable, and the oversimplified sound wave detection circuit is difficult to adapt to the change of a complex working environment;
3. the structure is unreasonable, and the altimeter of prior art volume weight is great, the consumption is great, electric interface is complicated, uses inconveniently.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an underwater altimeter.
The purpose of the invention is realized by the following technical scheme: an underwater altimeter comprises a transducer assembly, a sealed cabin assembly and a machine core supporting assembly, wherein the transducer assembly comprises a transducer array 1 and a transducer shell 2, the transducer shell 2 is in an inverted groove shape, and the transducer array 1 is arranged in the transducer shell 2; the sealed cabin assembly comprises a cabin shell 4, a top end cover 5 and a watertight connector 7, wherein the cabin shell 4 is hollow and cylindrical, the upper end face of the cabin shell is in bolted connection with the top end cover 5, the watertight connector 7 is arranged at the center of the top end cover 5, and the outer side wall of the transducer shell 2 is attached to the lower end of the inner side wall of the cabin shell 4; the core support assembly is arranged inside the cabin shell 4 and comprises a bottom support plate 11, a top support plate 8, a core support column 10 and a core mother plate 9, wherein the bottom support plate 11 is horizontally arranged on the upper end face of the transducer shell 2 and is connected with the transducer shell 2 through a bolt; two core mother boards 9 are vertically and symmetrically arranged on the bottom supporting board 11, the lower ends of the two core mother boards are in bolted connection with the bottom supporting board 11, and the upper ends of the two core mother boards are in bolted connection with the top supporting board 8; two movement support columns 10 are vertically and symmetrically arranged on the bottom support plate 11, the lower ends of the movement support columns are in bolted connection with the bottom support plate 11, and the upper ends of the movement support columns are in bolted connection with the top support plate 8; the top supporting plate 8 with top-down is equipped with transmitting board 12, digital circuit board 13, shield plate 14, receiving plate 15 in proper order horizontal interval between the bottom supporting plate 11, just transmitting board 12, digital circuit board 13, shield plate 14, receiving plate 15 all are through setting up the contact pin and two the core mother board 9 is connected.
In a preferred embodiment, the transducer 1 and the transducer housing 2 are connected by means of a potting compound, vulcanization, potting and the like.
In the preferred embodiment, a first O-ring 3 is provided between the outer side wall of the transducer housing 2 and the inner side wall of the chamber housing 4.
In a preferred embodiment, a boss 501 extending vertically and downwardly is arranged at the center of the lower end surface of the top end cover 5, and a second O-ring 6 is arranged between the outer side wall of the boss 501 and the inner side wall of the cabin shell 4.
In a preferred embodiment, a third O-ring 16 is disposed between the outer sidewall of the bottom support plate 11 and the inner sidewall of the tank enclosure 4, and a fourth O-ring 17 is disposed between the outer sidewall of the top support plate 8 and the inner sidewall of the tank enclosure 4.
In a preferred embodiment, a cylindrical through hole 502 matched with the watertight connector 7 is vertically arranged in the center of the top end cap 5, and one end of the watertight connector 7 penetrates through the cylindrical through hole 502 from top to bottom and is in threaded connection with the top end cap 5.
In a preferred embodiment, through holes matched with the movement support column 10 are formed in two sides of the emitting plate 12, the digital circuit board 13, the shielding plate 14 and the receiving plate 15, and the movement support column 10 vertically penetrates through the through holes and is arranged between the bottom support plate 11 and the top support plate 8.
In a preferred embodiment, the transmitting board 12 is provided with a transmitting circuit 18 and a power module 19, the digital circuit board 13 is provided with a communication port 20, a control unit 21 and a timing unit 22, the shielding board 14 is a PCB empty board, and the receiving board 15 is provided with a receiving circuit 23; the communication port 20 is electrically connected to the control unit 21, the control unit 21 is electrically connected to the transducer 1 sequentially through the timing unit 22 and the transmitting circuit 18, the transducer 1 is electrically connected to the control unit 21 through the receiving circuit 23, the power module 19 is electrically connected to the control unit 21, the timing unit 22, the transmitting circuit 18 and the receiving circuit 23, and the power module 19 and the communication port 20 are electrically connected to the watertight connector 7;
the communication port 20 is configured to issue a synchronization signal to the control unit 21 and transmit data; the control unit 21 generates a tuning gain TVC and sends it to the receiving circuit 23, and at the same time, the control unit 21 sends a trigger and synchronization signal to the timing unit 22; the timing unit 22 is used for sending the square wave signal generated by the timing unit to the transmitting circuit 18; the transmitting circuit 18 is used for amplifying the square wave signal and outputting the amplified square wave signal to the transducer array 1; the transducer array 1 is configured to convert an electrical signal output by the transmitting circuit 18 into an acoustic signal, transmit the acoustic signal and receive a reflected acoustic signal reflected by a target object, and at the same time, the transducer array 1 converts the received reflected acoustic signal into an electrical signal and sends the electrical signal to the receiving circuit 23; the receiving circuit 23 amplifies the received electrical signal transmitted by the transducer 1 and transmits the amplified electrical signal to the control unit 21.
In a preferred embodiment, the control unit 21 is a single chip microcomputer, and the model of the single chip microcomputer is C8051F 020.
The invention has the beneficial effects that:
1. according to the installation method, the core support assembly and the transducer assembly are connected through the bolts, and the core support assembly and the transducer assembly are pushed into the cabin shell as a whole, so that the complex core installation process can be assembled outside the cabin shell, and the core support assembly and the transducer assembly are integrally installed in the cabin shell after debugging is completed, so that the assembly and disassembly difficulty of operators is remarkably reduced, and the installation method is simple in structure, small in size and convenient and fast to use;
2. the bottom supporting plate and the top supporting plate are in matched contact with the cabin body shell, so that heat dissipation and conduction of all circuit components in the cabin body shell are facilitated, and the installation of the reinforcing rib plate is equivalent to the installation of the reinforcing rib plate, so that the pressure resistance strength is improved;
3. the frame consisting of the bottom support plate, the top support plate and the core support column surrounds the core circuit part, so that the core is protected, and the collision in the assembling and disassembling process is effectively prevented;
4. according to the invention, the first O-shaped sealing ring and the second O-shaped sealing ring are arranged to form a sealed cabin body in the cabin body shell, so that the sealing, buffering and shock-absorbing effects are achieved; the third O-shaped sealing ring and the fourth O-shaped sealing ring further enhance the sealing inside the cabin shell, simultaneously play a role in buffering and damping, reduce the interference of external impact on a machine core circuit part in the transportation and working processes, and improve the reliability of the invention.
5. According to the invention, the circuit boards are arranged at intervals, and the receiving board is separated from the digital circuit board and the transmitting board by the shielding board, so that the capability of resisting external interference is enhanced, and the measurement precision is improved.
Drawings
The invention is explained in further detail below with reference to the drawing.
FIG. 1 is a schematic structural diagram of an underwater altimeter according to an embodiment of the present invention;
fig. 2 is a system framework diagram of a altimeter under water according to an embodiment of the present invention.
In the figure:
1. a transducer array; 2. a transducer housing; 3. a first O-ring seal; 4. a cabin shell; 5. a top end cap; 501. a boss; 502. a cylindrical through hole; 6. a second O-ring seal; 7. a watertight connector; 8. a top support plate; 9. a core motherboard; 10. a movement support column; 11. a bottom support plate; 12. a launch plate; 13. a digital circuit board; 14. a shielding plate; 15. receiving a plate; 16. a third O-ring seal; 17. a fourth O-shaped sealing ring; 18. a transmitting circuit; 19. a power supply module; 20. a communication port; 21. a control unit; 22. a timing unit; 23. a receiving circuit; .
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The invention will be further described with reference to the drawings and specific examples.
As shown in fig. 1-2, an underwater altimeter according to an embodiment of the present invention includes a transducer assembly, a sealed cabin assembly, and a movement support assembly, where the transducer assembly includes a transducer array 1 and a transducer housing 2, the transducer housing 2 is in an inverted groove shape and has a transducer array 1 disposed therein, and the transducer array 1 and the transducer housing 2 are connected by a potting adhesive through vulcanization and encapsulation; the sealed cabin assembly comprises a cabin shell 4, a top end cover 5 and a watertight connector 7, wherein the cabin shell 4 is hollow and cylindrical, the upper end face of the cabin shell is in bolted connection with the top end cover 5, the watertight connector 7 is arranged in the center of the top end cover 5, and the outer side wall of the transducer shell 2 is attached to the lower end of the inner side wall of the cabin shell 4; the core support assembly is arranged inside the cabin shell 4 and comprises a bottom support plate 11, a top support plate 8, a core support column 10 and a core mother plate 9, wherein the bottom support plate 11 is horizontally arranged on the upper end surface of the transducer shell 2 and is connected with the transducer shell 2 through bolts; two core mother boards 9 are vertically and symmetrically arranged on the bottom supporting board 11, the lower ends of the two core mother boards are in bolted connection with the bottom supporting board 11, and the upper ends of the two core mother boards are in bolted connection with the top supporting board 8; the two movement support columns 10 are vertically and symmetrically arranged on the bottom support plate 11, the lower ends of the two movement support columns are in bolted connection with the bottom support plate 11, and the upper ends of the two movement support columns are in bolted connection with the top support plate 8; a transmitting plate 12, a digital circuit board 13, a shielding plate 14 and a receiving plate 15 are sequentially arranged between the top supporting plate 8 and the bottom supporting plate 11 from top to bottom at intervals horizontally, and the transmitting plate 12, the digital circuit board 13, the shielding plate 14 and the receiving plate 15 are all connected with the two core mother boards 9 through pins;
in the embodiment of the invention, the core supporting component and the transducer component are connected through the bolts, namely, the bottom supporting plate 11 is connected with the transducer shell 2 through the bolts, and the core supporting component and the transducer component are pushed into the cabin shell 4 as a whole, so that the complex core mounting process can be assembled outside the cabin shell 4, and the core supporting component and the transducer component are integrally mounted in the cabin shell 4 after debugging is finished, thereby obviously reducing the difficulty in dismounting and mounting of operators; the bottom supporting plate 11 and the top supporting plate 8 are in matched contact with the cabin body shell 4, so that heat dissipation and conduction of all circuit components in the cabin body shell 4 are facilitated, and the installation of the reinforcing rib plate is equivalent to the installation of the reinforcing rib plate, so that the pressure resistance strength is improved; the frame that bottom sprag board 11, top sprag board 8 and core support column 10 are constituteed surrounds core circuit part, has played the guard action to core circuit part, has effectively prevented colliding with of dismouting process.
In a specific embodiment, a first O-shaped sealing ring 3 is arranged between the outer side wall of the transducer shell 2 and the inner side wall of the cabin shell 4;
a boss 501 vertically extending downwards is arranged in the center of the lower end face of the top end cover 5, the outer side wall of the boss 501 is attached to the inner side wall of the cabin body shell 4, and a second O-shaped sealing ring 6 is arranged between the boss 501 and the inner side wall;
in the embodiment of the invention, the first O-shaped sealing ring 3 and the second O-shaped sealing ring 6 are arranged to form a sealed cabin body in the cabin body shell 4, so that the sealing effect is achieved.
In a specific embodiment, a third O-ring 16 is arranged between the outer side wall of the bottom support plate 11 and the inner side wall of the cabin shell 4, and a fourth O-ring 17 is arranged between the outer side wall of the top support plate 8 and the inner side wall of the cabin shell 4;
in the embodiment of the invention, the third O-shaped sealing ring 16 and the fourth O-shaped sealing ring 17 further enhance the sealing inside the cabin shell 4, play a role in buffering and damping, reduce the interference of external impact on a machine core circuit part in the transportation and working processes, and improve the reliability of the invention.
In a specific embodiment, a cylindrical through hole 502 matched with the watertight connector 7 is vertically arranged in the center of the top end cover 5, and one end of the watertight connector 7 penetrates through the cylindrical through hole 502 from top to bottom and is in threaded connection with the top end cover 5;
in the embodiment of the invention, the watertight connector 7 adopts a watertight connector with the model specification of MCBH6M, is used in an underwater environment, and is an electric connecting device capable of transmitting power supply, signals and the like underwater.
In a specific embodiment, through holes (not shown in the figure) matched with the movement support column 10 are respectively arranged on two sides of the transmitting plate 12, the digital circuit board 13, the shielding plate 14 and the receiving plate 15, and the movement support column 10 vertically penetrates through the through holes and is arranged between the bottom support plate 11 and the top support plate 8;
in the embodiment of the invention, the movement support column 10 penetrates through the through hole when being installed, so that the functions of fixing and supporting the transmitting plate 12, the digital circuit board 13, the shielding plate 14 and the receiving plate 15 are achieved, and the functions of shock resistance and protection are achieved.
In a specific embodiment, as shown in fig. 1-2, a transmitting circuit 18 and a power module 19 are arranged on the transmitting board 12, a communication port 20, a control unit 21 and a timing unit 22 are arranged on the digital circuit board 13, the shielding board 14 is a PCB blank board, and a receiving circuit 23 is arranged on the receiving board 15; the communication port 20 is electrically connected with the control unit 21, the control unit 21 is electrically connected with the transducer 1 sequentially through the timing unit 22 and the transmitting circuit 18, the transducer 1 is electrically connected with the control unit 21 through the receiving circuit 23, and the power module 19 is electrically connected with the control unit 21, the timing unit 22, the transmitting circuit 18 and the receiving circuit 23 respectively and used for supplying power to each circuit system of the invention; the power supply module 19 and the communication port 20 are electrically connected with the watertight connector 7 and used for transmitting power supply and electric signals underwater through the watertight connector 7;
the communication port 20 is used for sending a synchronization signal to the control unit 21 and transmitting data; the control unit 21 generates the adjustment gain TVC and sends it to the receiving circuit 23, and at the same time, the control unit 21 sends the trigger and synchronization signal to the timing unit 22; the timing unit 22 is used for sending the square wave signal generated by the timing unit to the transmitting circuit 18; the transmitting circuit 18 is used for amplifying the square wave signal and outputting the amplified square wave signal to the transducer array 1; the transducer array 1 is used for converting the electric signal output by the transmitting circuit 18 into an acoustic signal, transmitting the acoustic signal and receiving a reflected acoustic signal reflected by a target object, and meanwhile, the transducer array 1 converts the received reflected acoustic signal into an electric signal and sends the electric signal to the receiving circuit 23; the receiving circuit 23 amplifies the received electric signals transmitted by the transducer 1 and transmits the amplified electric signals to the control unit 21;
in the embodiment of the invention, the control unit 21 adopts a singlechip, and the model of the singlechip is C8051F 020; the transmitting circuit 18 adopts an ultrasonic transmitting circuit in the prior art; the receiving circuit 23 adopts an ultrasonic receiving circuit in the prior art; the shielding plate 14 is a PCB empty plate and is arranged between the digital circuit board 13 and the receiving plate 15, and the purpose is to shield noise and interference signals and improve the anti-interference capability of the invention.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An underwater altimeter is characterized in that: the energy-saving cabin comprises an energy converter assembly, a sealed cabin body assembly and a machine core supporting assembly, wherein the energy converter assembly comprises an energy converter array (1) and an energy converter shell (2), the energy converter shell (2) is in an inverted groove shape, and the energy converter array (1) is arranged in the energy converter shell; the sealed cabin assembly comprises a cabin shell (4), a top end cover (5) and a watertight connector (7), wherein the cabin shell (4) is in a hollow cylindrical shape, the upper end face of the cabin shell is in bolted connection with the top end cover (5), the watertight connector (7) is arranged in the center of the top end cover (5), and the outer side wall of the transducer shell (2) is attached to the lower end of the inner side wall of the cabin shell (4); the core supporting assembly is arranged inside the cabin shell (4) and comprises a bottom supporting plate (11), a top supporting plate (8), a core supporting column (10) and a core mother plate (9), wherein the bottom supporting plate (11) is horizontally arranged on the upper end face of the transducer shell (2) and is in bolt connection with the transducer shell (2); two core mother boards (9) are vertically and symmetrically arranged on the bottom supporting plate (11), the lower ends of the two core mother boards are in bolted connection with the bottom supporting plate (11), and the upper ends of the two core mother boards are in bolted connection with the top supporting plate (8); the two movement support columns (10) are vertically and symmetrically arranged on the bottom support plate (11), the lower ends of the two movement support columns are connected with the bottom support plate (11) through bolts, and the upper ends of the two movement support columns are connected with the top support plate (8) through bolts; the top supporting plate (8) and the bottom supporting plate (11) are sequentially horizontally provided with a transmitting plate (12), a digital circuit board (13), a shielding plate (14) and a receiving plate (15) from top to bottom at intervals, and the transmitting plate (12), the digital circuit board (13), the shielding plate (14) and the receiving plate (15) are connected with the two core mother boards (9) through pins.
2. An underwater altimeter according to claim 1, wherein: the transducer array (1) is connected with the transducer shell (2) through pouring sealant vulcanization encapsulation.
3. An underwater altimeter according to claim 1, wherein: a first O-shaped sealing ring (3) is arranged between the outer side wall of the transducer shell (2) and the inner side wall of the cabin shell (4).
4. An underwater altimeter according to claim 3, wherein: the lower terminal surface center of top end cover (5) is equipped with vertical downwardly extending's boss (501), the lateral wall of boss (501) with the inboard wall of cabin body shell (4) is laminated mutually and is equipped with second O shape sealing washer (6) between.
5. An underwater altimeter according to claim 4, wherein: the outer side wall of the bottom supporting plate (11) and the inner side wall of the cabin body shell (4) are provided with a third O-shaped sealing ring (16), and the outer side wall of the top supporting plate (8) and the inner side wall of the cabin body shell (4) are provided with a fourth O-shaped sealing ring (17).
6. An underwater altimeter according to claim 4, wherein: the center of the top end cover (5) is vertically provided with a cylindrical through hole (502) matched with the watertight connector (7), and one end of the watertight connector (7) penetrates through the cylindrical through hole (502) from top to bottom and is in threaded connection with the top end cover (5).
7. An underwater altimeter according to claim 1, wherein: the two sides of the emitting plate (12), the digital circuit board (13), the shielding plate (14) and the receiving plate (15) are provided with through holes matched with the core support columns (10), and the core support columns (10) vertically penetrate through the through holes and are arranged between the bottom support plate (11) and the top support plate (8).
8. An underwater altimeter according to claim 7, wherein: the transmitting circuit (18) and the power module (19) are arranged on the transmitting board (12), the communication port (20), the control unit (21) and the time sequence unit (22) are arranged on the digital circuit board (13), the shielding board (14) is a PCB (printed circuit board) empty board, and the receiving circuit (23) is arranged on the receiving board (15); the communication port (20) is electrically connected with the control unit (21), the control unit (21) is electrically connected with the transducer array (1) sequentially through the timing unit (22) and the transmitting circuit (18), the transducer array (1) is electrically connected with the control unit (21) through the receiving circuit (23), the power module (19) is electrically connected with the control unit (21), the timing unit (22), the transmitting circuit (18) and the receiving circuit (23) respectively, and the power module (19) and the communication port (20) are electrically connected with the watertight connector (7);
the communication port (20) is used for sending a synchronization signal to the control unit (21) and transmitting data; the control unit (21) generates a tuning gain TVC to be sent to the receiving circuit (23), while the control unit (21) sends a trigger and synchronization signal to the timing unit (22); the timing unit (22) is used for sending the square wave signal generated by the timing unit to the transmitting circuit (18); the transmitting circuit (18) is used for amplifying the square wave signals and then outputting the square wave signals to the transducer array (1); the transducer array (1) is used for converting the electric signals output by the transmitting circuit (18) into sound wave signals to be transmitted out and receiving reflected sound wave signals reflected by a target object, and meanwhile, the transducer array (1) converts the received reflected sound wave signals into electric signals to be sent to the receiving circuit (23); the receiving circuit (23) amplifies the received electric signals sent by the transducer array (1) and sends the amplified electric signals to the control unit (21).
9. An underwater altimeter according to claim 8, wherein: the control unit (21) is a single chip microcomputer, and the model of the single chip microcomputer is C8051F 020.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010107602.2A CN111273295A (en) | 2020-02-21 | 2020-02-21 | Underwater height measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010107602.2A CN111273295A (en) | 2020-02-21 | 2020-02-21 | Underwater height measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN111273295A true CN111273295A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010107602.2A Pending CN111273295A (en) | 2020-02-21 | 2020-02-21 | Underwater height measuring instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359138A (en) * | 2021-05-06 | 2021-09-07 | 上海交通大学 | Underwater target echo regulation and control device and sound identification method |
| CN116409452A (en) * | 2023-04-10 | 2023-07-11 | 南京全信传输科技股份有限公司 | Seabed power communication pressure-resistant cabin with adjustable function and disassembly and assembly method |
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| CN209946383U (en) * | 2019-05-09 | 2020-01-14 | 云南保利天同仪器有限公司 | Large depth small doppler log |
| CN110703197A (en) * | 2019-11-08 | 2020-01-17 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Lateral measurement type inverted ultrashort baseline transmitting-receiving transducer and working mode thereof |
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2020
- 2020-02-21 CN CN202010107602.2A patent/CN111273295A/en active Pending
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