CN103116157B - Plasma sonar buoy - Google Patents
Plasma sonar buoy Download PDFInfo
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- CN103116157B CN103116157B CN201310047286.4A CN201310047286A CN103116157B CN 103116157 B CN103116157 B CN 103116157B CN 201310047286 A CN201310047286 A CN 201310047286A CN 103116157 B CN103116157 B CN 103116157B
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- 238000004891 communication Methods 0.000 claims abstract description 24
- 238000004146 energy storage Methods 0.000 claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000010355 oscillation Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000234643 Festuca arundinacea Species 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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- 238000003379 elimination reaction Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Abstract
The invention discloses a plasma sonar buoy which comprises a low-voltage module and a high-voltage module connected with the low-voltage module. The low-voltage module comprises a positioning unit, a communication unit and an energy storage unit, and the high-voltage module comprises a DC-DC conversion unit and a pulse discharge unit. By the aid of water pulse plasma corona discharge technology, the plasma sonar buoy is long in service life, fine in sound source stability, high in repeatability, high in source level and wide in frequency range, pulse sound waves are free of multiple oscillation, the main working frequency range of the plasma sonar buoy can be adjusted from hundreds of Hz to thousands of Hz, the frequency of the plasma sonar buoy is lower than that of a piezoelectric transducer used by a current sonar buoy, and the plasma sonar buoy is suitable for actively detecting an underwater stealth target, and is also suitable for underwater acoustic measurement by the aid of narrow pulse and high repeatability.
Description
Technical field
The invention belongs to undersea detection technical field, be specifically related to a kind of plasma sonar buoy.
Background technology
Sonar buoy is a kind of underwater sound remote sesing detector, and it and buoy Signal reception treatment facility etc. form buoy sonar system, can be used for underwater noise measurement, submarine temperatures depth survey, under water channel measurement, Underwater Target Detection and underwater communication etc.At present, divide by working method, sonar buoy can be divided into active and passive type two kinds.Wherein, passive type sonar buoy receives only signal, without underwater sound signal emitter; And the single cylindrical piezo formula transducer of active sonar buoy many employings transmit-receive sharing, can find range while the detection of a target, its working frequency range is generally in 9 ~ 13kHz scope, and the acoustic waveform of transmitting is pulse waveform.At present, along with submarine target Stealth Fighter improves gradually, especially a watt centering high frequency band is covered in noise elimination good acoustically effective, and the detection range of conventional main passive sonar buoy is diminished gradually, and this just requires that sonar buoy look-in frequency develops toward low frequency.
Plasma sound source is a kind of novel pulse sound source under water, and compared with piezoelectric transducer, efficiency is higher, and has that pulse is narrow, bandwidth, source class high.Its principle of work and piezoelectric transducer also have very large difference, belong to explosion type sound source.The know-why of plasma sound source is the mechanical effect of water mesohigh pulsed discharge, is also called " electrohydraulic effect ".The pulsed discharge of water mesohigh can be divided into again in water corona discharge pulse in pulse arc discharge and water according to its discharge type.
The work having nearly 20 years has been carried out in the research and development of texas,U.S University of Science and Technology Austin pulse arc discharge technology and coherent sound source product thereof in water.U.S. phoenix science and technology company also develops a kind of plasma sound source in water based on pulse arc discharge and is applied to sonar buoy.This sonar buoy can only carry out 20 electric discharges at every turn after charging, and the acoustical signal produced exists multiple oscillation.This vibration is caused by gas bubble pulsation.There is very large randomness in gas bubble pulsation, therefore makes the repeatability of acoustical signal be deteriorated, be unfavorable for the application of target detection and underwater acoustic measurement aspect.
Summary of the invention
For the above-mentioned technical matters existing for prior art, the invention provides a kind of plasma sonar buoy, adopt modular design to optimize electromagnetic environment, avoid the electromagnetic interference (EMI) of high pressure pulse discharge to low-voltage module, export pulsed sound without multiple oscillation, signal is reproducible.
A kind of plasma sonar buoy, the high-pressure modular comprising low-voltage module He be attached thereto;
Described low-voltage module comprises:
Positioning unit, for receiving the locating information that satellite provides;
Communication unit, for carrying out communication with outside upper-level control system, receives the control signal that it sends, and the locating information described in sending to it;
Energy-storage units, for storing direct current and powering for positioning unit, communication unit and high-pressure modular;
Described high-pressure modular comprises:
DC-DC converter unit, for the galvanic electric pressure described in lifting, exports high voltage direct current;
Pulsed discharge unit, for utilizing described high voltage direct current, timing is independently carried out pulsed discharge or carries out pulsed discharge according to described control signal.
Described low-voltage module is connected with high-pressure modular by connector or cable, and both are separable, and low-voltage module can use by recharge; Preferred employing cable, length can regulate, can as required by high-pressure modular sinking to different depth, regulate the working frequency range of sonar with this; Connector can adopt electric connector or electro-optical composite connector, and cable can adopt water-proof cable or optoelectronic composite cable.
Described energy-storage units can adopt super capacitor, lithium battery or photovoltaic cell; Preferred employing lithium battery, lithium battery energy storage battery density is large, longevity of service.
Described DC-DC converter unit is connected and composed successively by a full-bridge inverter, a LC resonant circuit, a step-up transformer and a full-bridge rectifier.
Described pulsed discharge unit comprises a current-limiting inductance, a high-voltage pulse electric capacity, a fly-wheel diode, a discharge switch, a trigger and sparking electrode composition; Wherein, one end of current-limiting inductance is connected with the high-voltage output end of DC-DC converter unit, the other end of current-limiting inductance is connected with one end of discharge switch with one end of high-voltage pulse electric capacity, one end of fly-wheel diode, the other end of discharge switch is connected with sparking electrode, the other end of high-voltage pulse electric capacity and the other end of fly-wheel diode are connected with the low-voltage output of DC-DC converter unit and ground connection, the trigger electrode of discharge switch is connected with trigger, described trigger clocked flip discharge switch or according to described control signal triggering discharges switch.
Described high-voltage pulse electric capacity can adopt oil immersed type capacitor or dry-type capacitor, and described discharge switch adopts semiconductor switch.
Described sparking electrode is made up of insulating medium and at least one metal electrode; Described metal electrode is embedded in described insulating medium, and metal electrode one end is exposed and be discharge tip, and the other end is connected with the other end of discharge switch; If described metal electrode is multiple, be then connected with the other end of discharge switch after the other end parallel connection of all metal electrodes.
Described sparking electrode is single electrode or multi-electrode, and unipolar comprises a metal electrode, and multi-electrode comprises many metal electrodes.Described insulating medium adopts can tygon, epoxy resin or PTFE.
The present invention has two kinds of mode of operations, and one is utonomous working pattern, and one is passive work mode.Utonomous working pattern is as follows: DC-DC converter unit is passed through to high-voltage pulse capacitor charging in the low-voltage direct source in energy-storage units, when being charged to certain voltage, DC-DC converter unit quits work, the trigger self-timing of discharge switch exports trigger pip to discharge switch, after discharge switch triggering and conducting, high-voltage pulse electric capacity produces pulsed plasma electric discharge by sparking electrode in water, and discharge process causes plasma bubbles pulsation, thus produces pulsed sound.While trigger triggering discharges switch, positioning unit receives positioning signal, and by the locating information of buoy by communication unit timed sending to upper-level control system (control system on lash ship or machine tool); After discharge off, DC-DC converter unit restarts work, and energy-storage units starts to charge to high-voltage pulse electric capacity again, and so forth.The difference of passive work mode and utonomous working pattern is that the triggering of discharge switch is passive, and Trig control signal is sent by outside upper-level control system, sends the trigger of discharge switch through communication unit to, to trigger it.
In contrast to this, what the present invention adopted is pulse plasma corona discharge technology in water, and compared with pulse arc discharge in water, major technique difference has two aspects.First, the discharge switch that the former adopts is semiconductors coupling switch, but not arrester switch, switch life is longer than the latter a lot; Secondly sparking electrode is unipolar single electrode or multiple electrode structure, but not ambipolar electrode pair structure, and electric discharge is only carried out at eletrode tip, without the conducting electric arc between high-low pressure electrode pair.In water, the principal feature of corona discharge pulse technology is that the life-span is long, sound source good stability, pulsed sound is without multiple oscillation, and repeatability is high, and source class is high simultaneously, frequency range is wide, its groundwork frequency range is adjustable, and from hundreds of Hz to several thousand Hz, the piezoelectric transducer frequency adopted than current sonar buoy is low, be suitable for the active probe of underwater hidden target, its burst pulse and high repeat property are also suitable for underwater acoustic measurement simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of sonar buoy of the present invention.
Fig. 2 is the structural representation that negative polarity exports lower high-pressure modular.
Fig. 3 is the structural representation that positive polarity exports lower high-pressure modular.
Fig. 4 is the acoustic pulsed waveform figure of sonar buoy of the present invention.
Fig. 5 is the acoustic pulsed waveform figure of existing sonar buoy.
Embodiment
In order to more specifically describe the present invention, below in conjunction with the drawings and the specific embodiments, technical scheme of the present invention and principle of work thereof are described in detail.
As shown in Figure 1, a kind of plasma sonar buoy, the high-pressure modular comprising low-voltage module and be attached thereto, two modules are all placed in the cylindrical container that diameter is 20cm, the cylindrical chamber of low-voltage module adopts highstrenghtpiston's material, and length is about 35cm, and the cylindrical chamber of high-pressure modular adopts stainless steel, for ground connection, length is about 45cm.
Low-voltage module comprises positioning unit, communication unit and energy-storage units, and high-pressure modular comprises DC-DC converter unit and pulsed discharge unit.Two modules are connected by electro-optical composite connector, it has two core electrical connections and is connected with two core light, wherein two cores electrically connect as energy-storage units and are connected with DC-DC converter unit, require low-voltage and high-current, and two core light connect and are connected with pulsed discharge unit for communication unit.
Low-voltage module can unload and charges and reuse, and is full of the pulsed plasma electric discharge that electricity can carry out about 200 times at every turn.In low-voltage module, the locating information that positioning unit provides for receiving satellite; In present embodiment, it adopts commercial GPS module, is furnished with satellite earth antenna, and positioning precision is less than 2m.
Communication unit is used for carrying out communication with outside upper-level control system, receives the control signal that it sends, and sends locating information to it; In present embodiment, communication unit adopts NRF905 monolithic wireless transceiver, by the control system communication on dual-mode antenna and lash ship, work in 433/868/915MHz tri-ISM channels, transceiver also contains optical-electric module, the trigger optical-fibre communications of semiconductor switch in the optical fiber interface and pulsed discharge unit of electro-optical composite connector.The gps satellite receiving antenna of positioning unit and the communication receiving/transmission antenna of communication unit are all arranged on the top of low-voltage module container, and exposed on the water surface.
Energy-storage units for storing direct current, for positioning unit, communication unit and high-pressure modular are powered; In present embodiment, it comprises two pieces of lithium battery groups, wherein one piece is 3V, the lithium battery group of 800mAh is that positioning unit and communication unit are powered, another part adopts 12V, the lithium battery group of 2500mAh, for high-pressure modular is powered, its cable interface exported in electro-optical composite connector is connected with the DC-DC converter unit in high-pressure modular; Two pieces of lithium battery groups are all furnished with charging adapter, can use by recharge.
In high-pressure modular, DC-DC converter unit is used for the galvanic electric pressure that lifting energy-storage units stores, and exports high voltage direct current; In present embodiment, DC-DC converter unit is connected and composed successively by a full-bridge inverter, a LC resonant circuit, a step-up transformer and a full-bridge rectifier; Export for negative polarity, its circuit structure as shown in Figure 2; Export for positive polarity, its circuit structure as shown in Figure 3.Wherein, full-bridge inverter adopts IGBT to be switching device, frequency of operation is 100kHz, its most high workload electric current is 250mA, L value 20 μ H in LC resonant circuit, C value 120nF, step-up transformer adopts hollow coaxial transformer, no-load voltage ratio 1:200, maximum output voltage 2400V, most High Output Current 1.25mA.
Pulsed discharge unit is used for utilizing high voltage direct current, and timing is independently carried out pulsed discharge or carries out pulsed discharge according to control signal; Pulsed discharge unit comprises a current-limiting inductance, a high-voltage pulse electric capacity, a fly-wheel diode, semiconductor switch, a trigger and sparking electrode composition; Negative polarity is exported as shown in Figure 2, wherein one end of current-limiting inductance is connected with the high-voltage output end of DC-DC converter unit, the other end of current-limiting inductance is connected with the negative electrode of semiconductor switch with one end of high-voltage pulse electric capacity, the anode of fly-wheel diode, the anode of semiconductor switch is connected with sparking electrode by exporting cable, the other end of high-voltage pulse electric capacity is connected with the negative electrode of fly-wheel diode, the low-voltage output of DC-DC converter unit and the shell of tank of high-pressure modular and ground connection, and the gate pole of semiconductor switch is connected with trigger.Positive polarity is exported as shown in Figure 3, wherein one end of current-limiting inductance is connected with the high-voltage output end of DC-DC converter unit, the other end of current-limiting inductance is connected with the anode of semiconductor switch with one end of high-voltage pulse electric capacity, the negative electrode of fly-wheel diode, the negative electrode of semiconductor switch is connected with sparking electrode by exporting cable, the other end of high-voltage pulse electric capacity is connected with the anode of fly-wheel diode, the low-voltage output of DC-DC converter unit and the shell of tank of high-pressure modular and ground connection, and the gate pole of semiconductor switch is connected with trigger.
In present embodiment, current-limiting inductance is 100 μ H, and high-voltage pulse electric capacity adopts the CBB solid capacitor of epoxy encapsulation, and capacitance 18 μ F, withstand voltage 4000V, operating voltage 2400V, the energy therefore once discharged is at 50J.Semiconductor switch is the module that controllable silicon encapsulates together with fly-wheel diode, withstand voltage 3600V, operating voltage 2400V.
The trigger of semiconductor switch is connected the control signal sent to receive Upper system with the optical fiber interface of electro-optical composite connector; In present embodiment, trigger by 16 single-chip microcomputers of Intel87C196KC be the trigger signal generating circuit of core, signal amplification circuit and KCB series of pulses transformer form.This trigger has two kinds of mode of operations: under autonomous mode, self-timing triggers controllable silicon, be connected with the communication unit of low-voltage module by connector under Passive Mode, the control signal provided by the control system on lash ship, triggers controllable silicon again after the conversion of this flop signal.
In present embodiment, sparking electrode adopts single electrode, and it is made up of insulating medium and a metal electrode; Metal electrode is embedded in insulating medium, and metal electrode one end is exposed and be discharge tip, and the other end is connected with semiconductor switch; Metal electrode adopts single core copper electrode, electrode diameter 0.5mm, and insulating medium adopts epoxy resin, and discharge tip contacts with water body, and sulfuration encapsulation process is done in metal electrode and semiconductor switch junction.
In present embodiment, energy-storage units adopts lithium battery group, and lithium battery group exports 12V low-voltage direct, high-frequency alternating current is become after IGBT inversion, after LC resonance, input step-up transformer, after boosting, become high voltage direct current through full-bridge rectification, by current-limiting inductance, high-voltage pulse electric capacity is charged.When after controlled silicon conducting, discharge electrode tips is injected in the energy storage in high-voltage pulse electric capacity, produces plasma bubbles, and give off the strong several ripple of pulse, as shown in Figure 4, what it adopted is sensitivity is that the nautical receiving set of-210dB records, measuring distance is 3m, and converting thus obtains source class and be about 215dB.
Fig. 5 is the acoustic pulsed waveform figure of the sonar buoy of phoenix science and technology company of U.S. exploitation, contrasted from Fig. 4 and Fig. 5, present embodiment pulsed sound is monopulse, pulse arc discharge is not had to produce multiple wave of oscillation, therefore reproducible, be suitable for the detection of underwater acoustic measurement and underwater hidden target.
Claims (1)
1. a plasma sonar buoy, is characterized in that: the high-pressure modular comprising low-voltage module He be attached thereto;
Described low-voltage module comprises:
Positioning unit, for receiving the locating information that satellite provides;
Communication unit, for carrying out communication with outside upper-level control system, receives the control signal that it sends, and the locating information described in sending to it;
Energy-storage units, for storing direct current and powering for positioning unit, communication unit and high-pressure modular;
Described high-pressure modular comprises:
DC-DC converter unit, for the galvanic electric pressure described in lifting, exports high voltage direct current;
Pulsed discharge unit, for utilizing described high voltage direct current, timing is independently carried out pulsed discharge or carries out pulsed discharge according to described control signal;
Described low-voltage module is connected with high-pressure modular by electro-optical composite connector, this electro-optical composite connector has two core electrical connections and is connected with two core light, wherein two cores electrically connect as energy-storage units and are connected with DC-DC converter unit, and two core light connect and are connected with pulsed discharge unit for communication unit;
Described energy-storage units adopts lithium battery group; Described communication unit adopts NRF905 monolithic wireless transceiver; Described DC-DC converter unit is connected and composed successively by a full-bridge inverter, a LC resonant circuit, a step-up transformer and a full-bridge rectifier;
Described pulsed discharge unit comprises a current-limiting inductance, a high-voltage pulse electric capacity, a fly-wheel diode, semiconductor switch, a trigger and sparking electrode composition; Wherein, one end of current-limiting inductance is connected with the high-voltage output end of DC-DC converter unit, the other end of current-limiting inductance is connected with one end of semiconductor switch with one end of high-voltage pulse electric capacity, one end of fly-wheel diode, the other end of semiconductor switch is connected with sparking electrode, the other end of high-voltage pulse electric capacity and the other end of fly-wheel diode are connected with the low-voltage output of DC-DC converter unit and ground connection, the trigger electrode of semiconductor switch is connected with trigger, described trigger clocked flip semiconductor switch or according to described control signal triggered semiconductor switch;
Described sparking electrode is made up of insulating medium and at least one metal electrode; Described metal electrode is embedded in described insulating medium, and metal electrode one end is exposed and be discharge tip, and the other end is connected with the other end of semiconductor switch; If described metal electrode is multiple, be then connected with the other end of semiconductor switch after the other end parallel connection of all metal electrodes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310047286.4A CN103116157B (en) | 2013-02-06 | 2013-02-06 | Plasma sonar buoy |
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| CN201310047286.4A CN103116157B (en) | 2013-02-06 | 2013-02-06 | Plasma sonar buoy |
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| CN103116157A CN103116157A (en) | 2013-05-22 |
| CN103116157B true CN103116157B (en) | 2015-01-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901464B (en) * | 2014-04-04 | 2017-04-12 | 西北工业大学 | Portable underwater strong sound source |
| CN103901393B (en) * | 2014-04-04 | 2016-05-18 | 西北工业大学 | Submarine navigation device based on the plasma pulse signal beacon that tracks |
| CN109787692B (en) * | 2018-12-28 | 2022-02-08 | 中国科学院深圳先进技术研究院 | Plasma pulse sound source circuit, receiving circuit and underwater acoustic communication system |
| CN111988900A (en) * | 2020-07-21 | 2020-11-24 | 中国空气动力研究与发展中心低速空气动力研究所 | Application of plasma exciter and infrasonic wave generating method and device |
| CN113964937B (en) * | 2021-09-22 | 2023-12-05 | 中国船舶工业系统工程研究院 | Compact independent power supply remote control trigger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| IS2365B (en) * | 1998-02-23 | 2008-06-15 | Stj÷rnu Oddi ehf | Systems, equipment and method for geographical location of aquatic and marine organisms |
| US6603800B1 (en) * | 1999-03-22 | 2003-08-05 | Interdigital Technology Corporation | CDMA location |
| JP4830269B2 (en) * | 2004-06-07 | 2011-12-07 | 日本電気株式会社 | Mooring sensor positioning method and apparatus |
| JP2008213687A (en) * | 2007-03-06 | 2008-09-18 | Japan Radio Co Ltd | Highly functional buoy with a built-in gps |
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Non-Patent Citations (3)
| Title |
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| JP特开2005-345414A 2005.12.15 * |
| JP特开2008-213687A 2008.09.18 * |
| 水下等离子体声源系统效率分析与计算;李华等;《声学技术》;20090930;第28卷(第6期);99-103 * |
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