CN109474871A - A kind of hydrophone and preparation method thereof - Google Patents
A kind of hydrophone and preparation method thereof Download PDFInfo
- Publication number
- CN109474871A CN109474871A CN201910011197.1A CN201910011197A CN109474871A CN 109474871 A CN109474871 A CN 109474871A CN 201910011197 A CN201910011197 A CN 201910011197A CN 109474871 A CN109474871 A CN 109474871A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- shell
- tailstock
- hydrophone
- fixed lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 53
- 229920002545 silicone oil Polymers 0.000 claims description 26
- 239000000919 ceramic Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 17
- 229920001971 elastomer Polymers 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 14
- 238000007872 degassing Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 6
- 230000002706 hydrostatic effect Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 4
- 238000009931 pascalization Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 16
- 239000004593 Epoxy Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229960000935 dehydrated alcohol Drugs 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920001967 Metal rubber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/006—Interconnection of transducer parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to it is a kind of can under the conditions of high hydrostatic pressure the high sensitivity of long-term work, broadband and low cost hydrophone, the problems such as low, high-performance that there are resistance to hydrostatic pressure power for solving existing underwater acoustic transducer in deep-sea detecting and communication sonar system and high voltage cannot have both, long-term work poor corrosion resistance, narrower bandwidth.
Description
Technical field
The invention belongs to sonar technique fields, and in particular to arrive a kind of hydrophone and preparation method thereof.
Background technique
It is continuous that the urgent need of deep-sea geology and marine resources detection and exploitation pushes deep-sea detecting and delivery to equip
Development, due to the specific condition of deep-sea high hydrostatic pressure, underwater acoustic communication, detection and the navigation system devices that deep sea installations carry are necessary
Carry out special designing.Underwater acoustic transducer is the key that underwater acoustic communication, detection and navigation system composition device, performance often determine
The overall performance index of whole system.The underwater acoustic transducer to work under deep sea condition must be able to bear very high hydrostatic pressing
Power, it is desirable that designed using special structure, common are discharge mechanism, pressure compensation mechanism, filling type, overflow-type etc..And
Big depth underwater acoustic transducer generallys use filling type, i.e., is filled with silicone oil or castor oil etc. inside energy converter, can not be pressed using it
Contracting reaches inside and outside and flattens weighing apparatus, to ensure that energy converter can work normally under high hydrostatic pressure.Transducer electrode is inserted as a result,
Matching structure design between seat, oil filler point and each component directly determines its maximum working pressure.And assembly technology and material
Selection can generate important influence to energy converter acoustical behavior.That there are resistance to hydrostatic pressure power is low, high for current existing underwater acoustic transducer
The deficiencies of performance and high voltage cannot have both, long-term work poor corrosion resistance, narrower bandwidth.
Thus, it is desirable to have a kind of high voltage, high-performance, corrosion resistant depth of long-term work that can be worked under deep sea condition
The oil-filled corrosion-resistant piezoelectric hydrophone in sea.
Summary of the invention
For existing hydrophone there are the problem of, the purpose of the present invention is to provide one kind can be in high hydrostatic pressure condition
The hydrophone of the high sensitivity of lower long-term work, broadband and low cost, for solving in deep-sea detecting and communication sonar system
With the presence of underwater acoustic transducer resistance to hydrostatic pressure power is low, high-performance and high voltage cannot have both, long-term work poor corrosion resistance, bandwidth
The problems such as relatively narrow.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of hydrophone, including shell, silicone oil, pressure cell, electromagnetic shielding net, electrode socket, spindle, preamplifier, electricity
Sub- storehouse, connector, the shell is lower ending opening, top is hemispheric cylinder, and electronics storehouse is the circle that upper and lower ends are open
Cylinder, the upper end in electronics storehouse and the lower end of shell connect；The pressure cell is the piezoelectric ceramics of multiple tubulars, each piezoelectricity pottery
It is separated among porcelain by decoupling material；The electrode socket includes contact pin and plug, and plug is for insulation and watertight；The connection
Part include upper fixed lid, support frame, standing screw, pedestal, tailstock, it is lower it is fixed cover, it is fixed to be stamped through-hole, and upper fixation
Lid is located at the upper end of pressure cell, and support frame is located at the lower end of pressure cell, and the lower end of support frame is connected with pedestal, pedestal with outside
The lower end inside of shell connects, and has an oil filler point and two socket apertures on pedestal, spindle, two electrode sockets are respectively placed in hole
Interior, standing screw connect with the center of upper fixed lid, across the center of pressure cell by it is upper it is fixed cover, pressure cell and bottom
Seat three is pressed, and the tailstock is connect with the lower end inside in electronics storehouse, there is a socket aperture on tailstock, and electrode socket is placed in hole
Interior, the electrode socket on tailstock includes three mutual independent electrode contact pins, and lower fixed lid is infundibulate, upper end and tailstock lower part
It is connected, lower end is cable aperture；Between shell and piezoelectric ceramic piece, bottom is connected the electromagnetic shielding net with pedestal；It is described
Silicone oil is filled in the confined space that shell and pedestal are formed；The preamplifier is placed in electronics storehouse, positive and negative anodes difference
It is connected in the electrode socket on pedestal, output end is connected with the electrode socket on tailstock.
Further, the shell is threadedly coupled with electronics storehouse.
Further, the shell is connect with whorl of base.
Further, the tailstock and electronics storehouse are threadedly coupled.
Further, the shell is provided with O-ring with electronics storehouse between the two and is sealed.
Further, the shell is provided with O-ring with pedestal between the two and is sealed.
Further, the tailstock and electronics storehouse are provided with O-ring between the two and are sealed.
Further, the hydrophone further includes sealant, and the sealant is wrapped in the outside of hydrophone entirety.
Further, the material of the sealant is sound transmitting rubber.
Further, the shell is vulcanized on metal rubber base using the excellent sound transmitting rubber of watertight and is made；It is preferred that
Ground, the shell are neoprene or JA-S casting type polyurethane.
Further, the upper and lower ends of the contact pin are equipped with O-ring.
Further, the electrode socket is packaged on pedestal using high-strength epoxy
Further, the spindle is threadedly coupled with oil filler point.
Further, the upper and lower ends of the spindle are equipped with O-ring.
Further, the decoupling material is made of oil resistant Materials with High Strength；Preferably, the decoupling material be polysulfones or
Epoxy glass fiber material.
A kind of production method of hydrophone, which comprises the following steps:
(1) shell is made in sound transmitting rubber and rubber base vulcanization, electrode socket is encapsulated on pedestal；
(2) standing screw is connect with the center of upper fixed lid, and upper fixed lid, piezoelectricity are made pottery across the center of piezoelectric ceramic piece
Porcelain tube and pedestal three are pressed, and are separated between piezoelectric ceramic tube, between piezoelectric ceramics and pedestal by decoupling material, by pedestal with
The connection of shell lower end, forms a closing inner chamber；
(3) it by the processing of silicone oil degassing alveolation, is injected in closing inner chamber by the oil filler point on pedestal by spindle, then through degassing alveolation
Spindle is fixed in oil filler point after processing, so that forming complete oil-filled closing inner chamber；
(4) upper end in electronics storehouse and the lower end of shell are connected, and preamplifier is placed in electronics storehouse, positive and negative anodes difference
It is connected in the electrode socket on pedestal, output end is connected with the electrode socket on tailstock；
(5) electrode socket of tailstock connection thereon is connect with the lower end in electronics storehouse, and lower fixed lid is connected with tailstock lower part
It connects；
(6) cable is fitted into down in the cable aperture of fixed lid, whole envelope is carried out to lower fixed lid, cable, tailstock, electrode socket
Dress, is fixed on lower fixation for cable with watertight head and covers；
(7) cable of lower fixed lid is subjected to vulcanization watertight using rubber, it is complete using whole progress of the sound transmitting rubber to hydrophone
Vulcanize water-proofing treatment.
Further, the encapsulation in step (1) and step (6) is all made of high-strength epoxy resin and is packaged.
Further, the specific steps of the previous degassing alveolation processing in step (3) are as follows: silicone oil is put into beaker by a
It is placed in baking oven and is heated to 90-110 DEG C, keep the temperature 60-90min；B takes out silicone oil, uses under conditions of 80 DEG C and vacuumizes stirring
System stirs 30-40min；C is put into vacuum drying oven, and 60 DEG C of constant temperature, vacuum is stood until bubble-free is overflowed.
Further, before being assembled, each component should use dehydrated alcohol and acetone to be cleaned.
On the basis of meeting general knowledge known in this field, above-mentioned each optimum condition can any combination, both implementation of the present invention
Example.
The beneficial effects of the present invention are:
(1) hydrophone of the invention include shell, silicone oil, pressure cell, electrode socket, spindle, preamplifier, electronics storehouse,
Connector.The hydrophone of such structure design has the characteristics that bandwidth, high sensitivity, hydrostatic pressure resistant height, seawater corrosion resistance, energy
It is enough to be worked normally under water in 6000m for a long time.
(2) hydrophone of the invention can be by adjusting piezoelectric ceramics ring size, quantity, connection type, silicone oil parameter etc.
Come the sensitivity and bandwidth of oriented control hydrophone.
(3) silicone oil degassing alveolation technological design of the present invention and the oil-filled structure design of hydrophone, ensure that silicone oil is still has
Effect property is greatly avoided simultaneously using complicated oil-extended process equipment.
(4) decoupling material of the present invention, electromagnetic shielding net, preamplifier use together, so that hydrophone obtains high voltage
While ensure that the high-performance of hydrophone.
(5) the structure design of tailstock and lower fixed lid and epoxy fill process are how hydrophone exports polar conductor and cable
Connectivity problem provides a kind of feasible solution.
(6) sound transmitting rubber and rubber base vulcanization are fabricated to shell by the present invention, and electrode socket is sealed by high-strength epoxy resin
On pedestal so that between electrode contact pin, between electrode contact pin and pedestal insulation and reliable watertight.
Detailed description of the invention:
Fig. 1 is a kind of overall structure diagram of hydrophone of the present invention；
Fig. 2 is the sectional view of base portion in a kind of hydrophone of the present invention；
Fig. 3 is the top view of tailstock contact pin and the sectional view of tailstock in a kind of hydrophone of the present invention；
Wherein, 1- shell, 2- silicone oil, fixed lid, 4- standing screw, 5- piezoelectric ceramics, 6- support frame, 7- pedestal, 8- are stifled on 3-
Head, 9- contact pin, 10- rubber base, 11- spindle, 12- electronics storehouse, 13- preamplifier, 14- tailstock, fixed lid, 16- watertight under 15-
Part, 17- cable, 18 sealants.
Specific embodiment:
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below to technical solution of the present invention do into
One step is described in detail.
Embodiment 1
A kind of hydrophone, including shell, silicone oil, pressure cell, electromagnetic shielding net, electrode socket, spindle, preamplifier, electricity
Sub- storehouse, connector, the shell is lower ending opening, top is hemispheric cylinder, and electronics storehouse is the circle that upper and lower ends are open
Cylinder, the upper end in electronics storehouse and the lower end of shell connect；The pressure cell is the piezoelectric ceramic tube of multiple tubulars, each piezoelectricity
It is separated among ceramic tube by decoupling material；The electrode socket includes contact pin and plug, and plug is for insulation and watertight；It is described
Connector include upper fixed lid, support frame, standing screw, pedestal, tailstock, it is lower it is fixed cover, it is fixed to be stamped through-hole, and on
Fixed lid is located at the upper end of pressure cell, and support frame is located at the lower end of pressure cell, and the lower end of support frame is connected with pedestal, pedestal
It is connect with the lower end inside of shell, there is an oil filler point and two socket apertures on pedestal, spindle, two electrode sockets are respectively placed in
In hole, standing screw connect with the center of upper fixed lid, across the center of pressure cell by it is upper it is fixed cover, pressure cell and
Pedestal three is pressed, and the tailstock is connect with the lower end inside in electronics storehouse, there is a socket aperture on tailstock, and electrode socket is placed in hole
Interior, the electrode socket on tailstock includes three mutual independent electrode contact pins, and lower fixed lid is infundibulate, upper end and tailstock lower part
It is connected, lower end is cable aperture；Between shell and piezoelectric ceramic piece, bottom is connected the electromagnetic shielding net with pedestal；It is described
Silicone oil is filled in the confined space that shell and pedestal are formed；The preamplifier is placed in electronics storehouse, positive and negative anodes difference
It is connected in the electrode socket on pedestal, output end is connected with the electrode socket on tailstock.
Embodiment 2
A kind of hydrophone, including shell, silicone oil, pressure cell, electrode socket, spindle, preamplifier, electronics storehouse, connector,
The shell is lower ending opening, top is hemispheric cylinder, and shell is using JA-S casting type polyurethane and related process and gold
Belong to rubber base integration to vulcanize, wall thickness 4mm, spacing watertight and the big function of entrant sound two, electronics storehouse are what upper and lower ends were open
Cylinder, the upper end in electronics storehouse and the lower end of shell connect；The piezoelectric ceramic circular tube that the pressure cell is two is connected, having a size of
25 × Φ of Φ, 19 × 15 mm, piezoelectric ceramic circular tube centre are separated by decoupling material；The electrode socket includes contact pin and blocks up
Head, contact pin are made of brass, and plug is made of polysulfones, and plug is for insulation and watertight；The connector includes upper fixed lid, branch
Support, standing screw, pedestal, tailstock, lower fixed lid, it is fixed to be stamped through-hole, and upper fixed lid is located at pressure cell
Upper end, support frame are located at the lower end of pressure cell, and the lower end of support frame is connected with pedestal, and support frame uses epoxy glass fiber material
Material is made, and plays a part of to support piezoelectric ceramic circular tube.The lower end inside of pedestal and shell connects, and has an oiling on pedestal
Hole and two socket apertures, spindle, two electrode sockets are all made of double 0 type circles sealings and are respectively screw and are mounted in hole, and with high
Strong epoxy packages guarantee insulation and watertight, and standing screw is connect with the center of upper fixed lid, across the center of pressure cell
Upper fixed lid, pressure cell and pedestal three are pressed, the tailstock is connect with the lower end inside in electronics storehouse, there is one on tailstock
Socket aperture, electrode socket are placed in hole, and the electrode socket on tailstock includes three mutual independent electrode contact pins, and lower fixed lid is
Infundibulate, upper end are connected with tailstock lower part, and lower end is cable aperture；The silicone oil is filled in the confined space that shell and pedestal are formed
It is interior；The preamplifier is placed in electronics storehouse, and positive and negative anodes are connected respectively at the electrode socket on pedestal, output end and tail
Electrode socket on seat is connected.
Its production method are as follows:
It is cleaned before each components assembly of hydrophone using dehydrated alcohol and acetone, is assembled in the following order:
(1) shell is made in sound transmitting rubber and rubber base vulcanization, electrode socket is encapsulated on pedestal；
(2) electrical property for detecting piezoelectric ceramic circular tube, two piezoelectric ceramic circular tubes is connected in series with conducting wire, not with two colors
Same conducting wire is drawn positive and negative anodes and is welded on the electrode contact pin packaged with high-strength epoxy on pedestal；
(3) standing screw is connect with the center of upper fixed lid, and upper fixed lid, piezoelectricity are made pottery across the center of piezoelectric ceramic piece
Tile and pedestal three are pressed, and are separated between piezoelectric ceramic piece, between piezoelectric ceramics and pedestal by decoupling material, by pedestal with
The connection of shell lower end, forms a closing inner chamber；
(4) processing of silicone oil degassing alveolation is carried out in the steps below, and it is spare to be put into clean container:
(a) silicone oil is put into beaker to be placed in baking oven and is heated to 90-110 DEG C, keep the temperature 60-90min；
(b) silicone oil is taken out, is stirred under vacuum 30-40min at 80 DEG C of stirring system using vacuumizing；
(c) it is put into vacuum drying oven, 60 DEG C of constant temperature, vacuum is stood until bubble-free is overflowed, and completion degassing alveolation is handled.
It (5) as follows will be in Silicone oil injection closing inner chamber:
(a) by housing tilt, degassing alveolation treated silicone oil is slowly injected into closing inner chamber through oil filler point on pedestal, this process
In, oil filler point will there are outlet gaps；
(b) oiling is then placed in 80-90 DEG C of heat preservation 30-60min of vacuum drying oven, later natural cooling until oil filler point is full
To room temperature, if pasta decline need to add part silicone oil after repeating vacuum treatment process until oil level remains unchanged；
(c) oil filler point is screwed using spindle, is cleaned using dehydrated alcohol and acetone and is encapsulated with high-strength epoxy after oil filler point.
(6) preamplifier corresponding lead and pedestal top electrode contact pin are welded, then electronics storehouse is tightened under shell
End.
(7) wire of output terminal of preamplifier is welded on the electrode contact pin of tailstock, tailstock is then packed into electronics
In storehouse.
(8) the electrode contact pin other end and cable conductor are welded, lower fixed lid is mounted on electronics storehouse by screw, to
High-strength epoxy is injected in the cavity of lower fixed lid, cable is then fixed on lower fixation using watertight part and is covered.
(9) full-enclosed watertight preservative treatment is integrally carried out to cable and hydrophone using JA-S casting type polyurethane.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of hydrophone, which is characterized in that including shell, silicone oil, pressure cell, electromagnetic shielding net, electrode socket, spindle,
Preamplifier, electronics storehouse, connector, the shell is lower ending opening, top is hemispheric cylinder, and electronics storehouse is upper and lower two
The cylinder being open is held, the upper end in electronics storehouse and the lower end of shell connect；The pressure cell is that the piezoelectricity of multiple tubulars is made pottery
Porcelain, each piezoelectric ceramics centre are separated by decoupling material；The electrode socket includes contact pin and plug, plug for insulating and
Watertight；The connector include upper fixed lid, support frame, standing screw, pedestal, tailstock, it is lower it is fixed cover, it is fixed to be stamped
Through-hole, and upper fixed lid is located at the upper end of pressure cell, support frame is located at the lower end of pressure cell, the lower end of support frame and pedestal
It is connected, the lower end inside of pedestal and shell connects, and has an oil filler point and two socket apertures on pedestal, and spindle, two electrodes are inserted
Seat is respectively placed in hole, and standing screw is connect with the center of upper fixed lid, cover upper fixation across the center of pressure cell,
Pressure cell and pedestal three are pressed, and the tailstock is connect with the lower end inside in electronics storehouse, there is a socket aperture, electrode on tailstock
Socket is placed in hole, and the electrode socket on tailstock includes three mutual independent electrode contact pins, and lower fixed lid is infundibulate, upper end
It is connected with tailstock lower part, lower end is cable aperture；The electromagnetic shielding net is between shell and piezoelectric ceramic tube, bottom and pedestal
It is connected；The silicone oil is filled in the confined space that shell and pedestal are formed；The preamplifier is placed in electronics storehouse, just
Cathode is connected respectively at the electrode socket on pedestal, and output end is connected with the electrode socket on tailstock.
2. a kind of hydrophone according to claim 1, which is characterized in that the shell is threadedly coupled with electronics storehouse, shell
It is connect with whorl of base, tailstock and electronics storehouse are threadedly coupled, and are provided with O-ring between the two and are sealed.
3. a kind of hydrophone according to claim 1, which is characterized in that further include sealant, the sealant is wrapped in
The outside of hydrophone entirety.
4. a kind of hydrophone according to claim 1, which is characterized in that the material of the shell is neoprene.
5. a kind of hydrophone according to claim 1, which is characterized in that the upper and lower ends of the contact pin are equipped with O-ring.
6. a kind of production method of hydrophone described in any one of -5 according to claim 1, which is characterized in that including following
Step:
(1) shell is made in sound transmitting rubber and rubber base vulcanization, electrode socket is encapsulated on pedestal；
(2) standing screw is connect with the center of upper fixed lid, and upper fixed lid, piezoelectricity are made pottery across the center of piezoelectric ceramic piece
Porcelain tube and pedestal three are pressed, and are separated between piezoelectric ceramic tube, between piezoelectric ceramics and pedestal by decoupling material, by pedestal with
The connection of shell lower end, forms a closing inner chamber；
(3) it by the processing of silicone oil degassing alveolation, is injected in closing inner chamber by the oil filler point on pedestal by spindle, then through degassing alveolation
Spindle is fixed in oil filler point after processing, so that forming complete oil-filled closing inner chamber；
(4) upper end in electronics storehouse and the lower end of shell are connected, and preamplifier is placed in electronics storehouse, positive and negative anodes difference
It is connected in the electrode socket on pedestal, output end is connected with the electrode socket on tailstock；
(5) electrode socket of tailstock connection thereon is connect with the lower end in electronics storehouse, and lower fixed lid is connected with tailstock lower part
It connects；
(6) cable is fitted into down in the cable aperture of fixed lid, whole envelope is carried out to lower fixed lid, cable, tailstock, electrode socket
Dress, is fixed on lower fixation for cable with watertight head and covers；
(7) cable of lower fixed lid is subjected to vulcanization watertight using rubber, it is complete using whole progress of the sound transmitting rubber to hydrophone
Vulcanize water-proofing treatment.
7. a kind of production method of hydrophone according to claim 6, which is characterized in that in step (1) and step (6)
Encapsulation is all made of high-strength epoxy resin and is packaged.
8. a kind of production method of hydrophone according to claim 6, which is characterized in that previous in step (3) is gone
The specific steps of bubbleization processing are as follows: silicone oil is put into beaker to be placed in baking oven by a is heated to 90-110 DEG C, keeps the temperature 60-
90min；B takes out silicone oil, uses under conditions of 80 DEG C and vacuumizes stirring system stirring 30-40min；C is put into vacuum drying oven, permanent
60 DEG C of temperature, vacuum is stood until bubble-free is overflowed.
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| CN109474871B (en) | 2023-09-05 |
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