CN214407753U

CN214407753U - Novel bionic vector hydrophone

Info

Publication number: CN214407753U
Application number: CN202120804968.5U
Authority: CN
Inventors: 彭超; 严红光; 张光旻
Original assignee: Guangdong Swt Smart Technology Co ltd; Dongguan University of Technology
Current assignee: Guangdong Swt Smart Technology Co ltd; Dongguan University of Technology
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-10-15
Anticipated expiration: 2031-04-20

Abstract

The utility model provides a novel bionic vector hydrophone, which comprises a substrate, wherein three surfaces at one corner outside the substrate are respectively fixed with a sensor frame, the middle of the sensor frame is fixed with a cross beam, the center of the cross beam is fixed with a supporting block, the outer side of the supporting block is fixed with bionic cilia, and the middle of the bionic cilia is fixed with a foam ball; and the polystyrene foam ball is added, so that the overall mass of the hydrophone is increased, and the elastic coefficient of the bionic cilia is increased by adding the elastic rope, so that the stress on the piezoresistor on the cross beam can be effectively reduced, and the interference of the hydrophone under vibration can be effectively reduced.

Description

Novel bionic vector hydrophone

Technical Field

The utility model belongs to the technical field of the hydrophone, concretely relates to novel bionical vector hydrophone.

Background

With the rapid development of economy, the strategic space of the twenty-first century gradually extends to the ocean, so that the detection of underwater targets and the exploration of submarine resources are the key strategic development direction in the future. The hydrophone is also called as underwater microphone, and is a transducer for converting underwater acoustic signals into electric signals, and has the characteristics of sound pressure, vibration speed, directionless, directional, piezoelectric, magnetostrictive, electric and moving coil, etc. according to the difference of action principle, transduction principle, characteristics and structure, etc.

The hydrophone has many similarities in principle and performance to a microphone, but due to the differences in sound-transmitting media, the hydrophone must be of a strong watertight construction, and must be made of watertight cables of corrosion-resistant materials, etc. The acoustic hydrophone detects underwater acoustic signals and noise acoustic pressure changes and generates voltage output proportional to the acoustic pressure. The sound pressure hydrophone is indispensable equipment in the measurement of underwater sound, is the core part in passive sonar system. Acoustic pressure hydrophones can be classified into: the performance of the piezoelectric ceramic sound pressure hydrophone, the PVDF sound pressure hydrophone, the piezoelectric composite material sound pressure hydrophone and the optical fiber sound pressure hydrophone directly determines the underwater target detection effect.

With the application of the anechoic tile and the wave-absorbing material, the noise of the modern underwater vehicle is smaller and smaller, so that higher requirements are placed on the sensitivity of the hydrophone, the unmanned underwater vehicle is smaller in size, and the hydrophone loaded on the unmanned underwater vehicle is interfered by the vibration of the vehicle, so that the detection effect of the hydrophone is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide a novel bionical vector hydrophone to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a novel bionical vector hydrophone, includes the basement, be fixed with the sensor frame on the three faces of basement outer one corner respectively, the centre of sensor frame is fixed with the cross beam, the center department of cross beam is fixed with the supporting shoe, the outside of supporting shoe is fixed with bionical cilia, the centre of bionical cilia is fixed with the foam ball.

Preferably, piezoresistors are respectively fixed on four branches of the cross beam, metal wires are fixed on the frame of the sensor, fixed electrodes are fixed on the substrate through elastic ropes, and the fixed electrodes are electrically connected with the fixed electrodes through the metal wires.

Preferably, the metal wire is fixed on the sensor frame through an elastic rope.

Preferably, the foam balls are specifically polystyrene balls.

Preferably, the substrate is specifically a cubic substrate.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses a set up the foam ball of making by polystyrene in the middle of the bionical cilia of sensor, the foam ball has increased the lifting surface area of the bionical cilia of sensitive, makes the sensitivity of receiving of hydrophone obtain greatly improving, has reached about 10 dB's sensitivity, can satisfy the low frequency detection requirement of remote underwater vehicle acoustic signal; and the polystyrene foam ball is additionally arranged, so that the overall quality of the hydrophone is increased, and the elastic coefficient of the bionic cilia is increased by additionally arranging the elastic rope, so that the stress borne by the piezoresistor on the cross beam can be effectively reduced, the interference of the hydrophone under vibration can be effectively reduced, and the detection precision is further improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a side structure of the base of the present invention;

description of reference numerals:

1-bionic cilia; 2-foam balls; 3-a cross beam; 4-a voltage dependent resistor; 5-a metal wire; 6-fixed electrode; 7-an elastic rope; 8-a support block; 9-sensor frame; 10-substrate.

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.

As shown in fig. 1 and fig. 2, the utility model provides a technical solution: a novel bionic vector hydrophone comprises a substrate 10, wherein the substrate 10 is a cubic substrate, and sensors are conveniently arranged.

The sensor comprises a substrate 10 and is characterized in that sensor frames 9 are respectively fixed on three surfaces of one corner outside the substrate 10, a cross beam 3 is fixed in the middle of each sensor frame 9, a supporting block 8 is fixed at the center of each cross beam 3, bionic cilia 1 is fixed on the outer side of each supporting block 8, a foam ball 2 is fixed in the middle of each bionic cilia 1, each foam ball 2 is specifically a polystyrene ball, each foam ball 2 made of polystyrene is arranged in the middle of each bionic cilia 1 of each sensor, and the stress area of each sensitive bionic cilia 1 is increased due to each foam ball 2, so that the receiving sensitivity of the hydrophone is greatly improved, the sensitivity of about 10dB is achieved, and the low-frequency detection requirement of remote underwater vehicle acoustic signals can be met.

Piezoresistors 4 are respectively fixed on four branches of the cross beam 3, metal wires 5 are fixed on the sensor frame 9, the metal wires 5 are fixed on the sensor frame 9 through elastic ropes 7, fixed electrodes 6 are fixed on the substrate 10 through the elastic ropes 7, the fixed electrodes 6 are electrically connected with the fixed electrodes 6 through the metal wires 5, and the piezoresistors 4 and the fixed electrodes 6 can be communicated to work under the action of the metal wires 5.

The elastic rope 7 is additionally arranged, so that the elastic coefficient of the bionic fiber 1 is increased, the stress on the piezoresistor 4 on the cross beam 3 can be effectively reduced, the foam ball 2 made of polystyrene is additionally arranged, the overall quality of the hydrophone is increased, the detection precision is further improved, and the underwater signal accurate detection operation can be conveniently completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel bionic vector hydrophone is characterized in that: including basement (10), be fixed with sensor frame (9) on the three faces of basement (10) outer one corner respectively, the centre of sensor frame (9) is fixed with cross beam (3), the center department of cross beam (3) is fixed with supporting shoe (8), the outside of supporting shoe (8) is fixed with bionical cilia (1), the centre of bionical cilia (1) is fixed with foam ball (2).

2. The novel bionic vector hydrophone according to claim 1, wherein piezoresistors (4) are respectively fixed on four branches of the cross beam (3), metal wires (5) are fixed on the sensor frame (9), fixed electrodes (6) are further fixed on the substrate (10) through elastic ropes (7), and the fixed electrodes (6) are electrically connected with the fixed electrodes (6) through the metal wires (5).

3. The novel bionic vector hydrophone according to claim 2, wherein the metal wires (5) are fixed on the sensor frame (9) through elastic ropes (7).

4. A novel bionic vector hydrophone according to claim 1, characterised in that the foam spheres (2) are in particular polystyrene spheres.

5. A novel bionic vector hydrophone according to claim 1, characterised in that the substrate (10) is embodied as a cubic substrate.