CN101425290A - Combined electric spark pulse sound source - Google Patents
Combined electric spark pulse sound source Download PDFInfo
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- CN101425290A CN101425290A CNA2008102391131A CN200810239113A CN101425290A CN 101425290 A CN101425290 A CN 101425290A CN A2008102391131 A CNA2008102391131 A CN A2008102391131A CN 200810239113 A CN200810239113 A CN 200810239113A CN 101425290 A CN101425290 A CN 101425290A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/04—Sound-producing devices
- G10K15/06—Sound-producing devices using electric discharge
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Abstract
A combined electric-spark sound source comprises a high-voltage charge power supply (1), an energy-storage and discharge module (2), a time-sequence pulse generator (3), a transmission line (4) and a discharge electrode (5). The high-voltage charge power supply (1) charges the energy-storage and discharge module (2) to a preset value, the time-sequence pulse generator (3) sends out multipaths of trigger pulse signals of different time intervals to trigger the discharge switch of the energy-storage and discharge module (2) into conduction, and the power energy stored in an energy-storage capacitor is released in water through the transmission line (4) and the discharge electrode (5). The energy-storage and discharge module (2) can be caused to discharge according to a certain time sequence by adjusting the time interval of the trigger pulse, and the basic frequency of the sound waves generated due to discharge can be adjusted within a certain range.
Description
Technical field
The invention belongs to the Pulse Power Techniques field, particularly produce the device of pulse sound source with high pressure pulse discharge.
Background technology
In recent years, growing along with the lifting of "Oceanic" strategy meaning and ocean development demand, the researcher more and more payes attention to the research and development to the highpowerpulse sound source both at home and abroad.Well behaved highpowerpulse sound source can satisfy the application demand in fields such as telecommunication, instrument remote control, sea survaillance, marine surveys, meteorological research and biological protection under water.
Present most of sound source all adopts piezoelectric transducer to launch, and it is to utilize electroacoustics transducers such as PZT piezoelectric ceramics, magnetostriction, ferro-electricity single crystal to convert electrical energy into acoustic energy.Because emissive power is subjected to the restriction of factors such as frequency of operation, power capacity, cavitation, material, technology, its emission sound source level is lower, is difficult to satisfy the application requirements in these fields.
Spark source is as a kind of highpowerpulse sound source, with other pulse sound sources (as controlled sound source, the ultrasound wave sound source, the weight sound source, the air gun sound source, the explosive sound source) compares, have simple in structure, safety, energy is easy to control and regulates, firing time is accurate, the operating efficiency height, advantages such as power is big, in geologic prospecting, be used widely, ocean and land spark source (the highest energy storage reaches 600kJ) as CAS Electrical Engineering Research Institute's development, the 20kJ multi-electrode ocean high resolving power spark source of Holland Geo-resources company etc., United States Patent (USP) 3347336,3268028,3356178, Chinese patent 85103629,01233188.0 etc.Its principle of work is that the energy that will be stored in the high-voltage capacitor group discharges the powerful pulse sound pressure wave of generation fast by high-voltage discharging switch, sparking electrode in water, again by receiving the reflected signal of sound wave in the stratum and can obtain the strata distribution situation after treatment, as the distribution of oil gas, coal and other mineral resources etc.
Existing domestic and international Patent equipment is single sound source discharge, and the fundamental frequency of the sound wave pulse of discharge generation is unadjustable.
Summary of the invention
The purpose of this invention is to provide a kind of combined electric spark pulse sound source, adopt a plurality of modules to carry out combined discharge with certain time sequence, the pulsewidth of discharge pulse and controlled at interval, the fundamental frequency of the sound wave pulse that the discharge back produces can be regulated in certain scope, to satisfy different application demands.
Combined electric spark sound source of the present invention comprises high voltage charging power supply, energy storage and discharge module, sequence timer, transmission line and sparking electrode.High voltage charging power supply is used for to energy storage and discharge module charging.Energy storage and discharge module are used for carrying out the storage and the release of electric energy, and number of modules can be chosen according to the different application occasion, and each module is made up of impulse capacitor, discharge switch and fly-wheel diode.Sequence timer can produce independently start pulse signal of multichannel, is used for triggering the conducting of discharge switch, but the time interval independent regulation between any two-way trigger pip.Transmission line is used for connecting discharge switch and sparking electrode, and sparking electrode adopts the coaxial electrode of band reflecting body, and reflecting body can be parabola or ellipsoid.
Good effect of the present invention is:
1 combined electric spark sound source energy of the present invention is big, can produce the ping of low frequency, high sound source level, can be used for land and ocean mid-deep strata seismic prospecting, application requirements such as telecommunication under water.
The 2 sound wave fundamental frequencies that produce after making a plurality of modules by certain sequential combined discharge by the time interval of regulating each trigger pulse can be regulated within the specific limits, satisfy specific application demand.
The reflector structure of 3 sparking electrodes can make the sound wave of discharge generation have to compile and orientating function, and is simple in structure, efficient is high, directive property is strong.
Description of drawings
Fig. 1 is that combined electric spark sound source of the present invention is formed synoptic diagram, among the figure: 1 high voltage charging power supply, 2 energy storage and discharge module, 3 sequence timers, 4 transmission lines, 5 sparking electrodes.
Fig. 2 is energy storage and discharge module circuit structure diagram, among the figure: 3 sequence timers, 4 transmission lines, 6 energy-storage capacitors, 7 discharge switches, 8 fly-wheel diodes.
Fig. 3 is the discharge electrode structure synoptic diagram, insulation in the 9 transmission line inner wires, 10 transmission lines, 11 transmission line outer conductors, 12 transmission line external insulations, 13 reflecting bodys, 14 low-field electrodes, 15 electrode insulations, 16 high-field electrodes.
Embodiment
Describe content of the present invention in detail below in conjunction with the drawings and the specific embodiments.
As shown in Figure 1: the present invention includes high voltage charging power supply 1, energy storage and discharge module 2, sequence timer 3, transmission line 4 and sparking electrode 5.High voltage charging power supply 1 is used for to energy storage and discharge module 2 chargings.Energy storage and discharge module 2 are used for carrying out the storage and the release of electric energy, and the number of energy storage and discharge module 2 can be chosen according to the different application occasion, and each energy storage and discharge module 2 comprise impulse capacitor 3, and discharge switch 7 and fly-wheel diode 8 are formed.Sequence timer 3 can produce independently start pulse signal of multichannel, is used for triggering the conducting of discharge switch 7, but the time interval independent regulation between any two-way trigger pip.Transmission line 4 is used for connecting discharge switch 7 and sparking electrode 5, and sparking electrode 5 adopts the coaxial electrode of band reflecting body, and reflecting body can be parabola or ellipsoid.
Fig. 2 is the circuit structure diagram of energy storage and discharge module 2, and energy storage and discharge module 2 comprise energy-storage capacitor 6, discharge switch 7 and fly-wheel diode 8.Energy-storage capacitor 6 store electrical energy, fly-wheel diode 8 is used for carrying out the adjusting of discharge current waveform.The high-pressure side of energy-storage capacitor 6 links to each other with the positive pole of discharge switch 7, the negative pole of discharge switch 7 is connected with the inner wire of transmission line 4 with the continuous back of the negative electrode of fly-wheel diode 8, and the low pressure end of energy-storage capacitor 6 is connected with the outer conductor of transmission line 4 with the continuous back of the anode of fly-wheel diode 8.Sequence timer 3 is used for controlling the sequential of discharge.Sequence timer 3 adopts CPLDs (CPLD, integrated chip), and the output multichannel is start pulse signal independently, every road trigger pip respectively with energy storage and discharge module 2 in the trigger electrode of discharge switch 7 link to each other with negative pole.
Fig. 3 is a discharge electrode structure synoptic diagram of the present invention.By transmission line inner wire 9, insulation 10 in the transmission line, transmission line outer conductor 11, transmission line external insulation 12, reflecting body 13, low-field electrode 14, electrode insulation 15, high-field electrode 16 is formed.Transmission line is one section high-pressure coaxial cable, and manufacturer makes on request by cable.Its inner wire 9, interior insulation 10, outer conductor 11, external insulation 12 is a coaxial configuration, its center line is positioned on the same axis, is followed successively by inner wire 9 from inside to outside, interior insulation 10, outer conductor 11 and external insulation 12.High-field electrode 16 employing metal materials for example brass are made, and an end is connected with transmission line inner wire 9, and the other end is positioned at the focus place of reflecting body 13.Electrode insulation 15 adopts insulating material such as teflon to make, and is enclosed within outside the high-field electrode 16, and low-field electrode 14 is made by stainless steel, is enclosed within outside the electrode insulation 15, and is connected with transmission line outer conductor 11.Reflecting body 13 by metal material for example stainless steel make, an end is processed into indent half ellipsoidal surface or parabola, adopts screw threads or welding manner to be connected with low-field electrode 14.Reflecting body 13, low-field electrode 14, electrode insulation 15, the center line of high-field electrode 16 is positioned on the same axis.The specific embodiment of the invention is as follows: maximum energy storage 160 kJ (kilojoule) of sound source are divided into 8 groups, every group 20 kJ (kilojoule), adjustable continuously, 20 kJ (kilojoule)/seconds of high-voltage power supply charge rate, sequence timer can produce 8 road trigger pulses, and the interval between the trigger pulse can be 0 to 1000 millisecond of adjusting.
The course of work of the present invention is as follows: high voltage charging power supply 1 is charged to prevalue for energy storage and discharge module 2, sequence timer 3 sends multichannel different time start pulse signal at interval, trigger the discharge switch conducting of energy storage and discharge module 2, the electric energy that energy-storage capacitor stores discharges in water by transmission line 4 and sparking electrode 5, and produces the high intensity pulses sound wave.Energy storage and discharge module 2 are discharged by the time interval of regulating trigger pulse according to certain time sequence, the sound wave fundamental frequency of discharge generation can be regulated in certain scope.The reflecting body 13 of sparking electrode is used for the sound wave of discharge generation is compiled with directed.
The present invention can be applicable to land, offshore shooting and field such as telecommunication under water as pulse sound source.
Claims (3)
1, a kind of combined electric spark sound source is characterized in that comprising high voltage charging power supply (1), energy storage and discharge module (2), sequence timer (3), transmission line (4) and sparking electrode (5); High voltage charging power supply (1) is given energy storage and discharge module (2) charging, and energy storage and discharge module (2) are used for storing and the release electric energy; Sequence timer (3) produces independently start pulse signal of multichannel, is used for triggering the conducting of discharge switch, but the time interval independent regulation between any two-way trigger pip; Transmission line (4) connects discharge switch and sparking electrode.
According to the described combined electric spark sound source of claim 1, it is characterized in that 2, energy storage and discharge module (2) comprise sequence timer (3), transmission line (4), energy-storage capacitor (6), discharge switch (7) and fly-wheel diode (8); Energy-storage capacitor (6) store electrical energy, fly-wheel diode (8) is used for carrying out the adjusting of discharge current waveform; Sequence timer (3) is used for controlling the sequential of discharge; The high-pressure side of energy-storage capacitor (6) links to each other with the positive pole of discharge switch (7), the negative pole of discharge switch (7) is connected with the inner wire (9) of transmission line (4) with the continuous back of the negative electrode of fly-wheel diode (8), and the low pressure end of energy-storage capacitor (6) is connected with the outer conductor (11) of transmission line (4) with the continuous back of the anode of fly-wheel diode (8); Sequence timer (3) output multichannel is start pulse signal independently, and every road trigger pip links to each other with negative pole with the trigger electrode of energy storage with the middle discharge switch (7) of discharge module (2) respectively.
According to the described combined electric spark sound source of claim 1, it is characterized in that 3, sparking electrode (5) adopts the coaxial electrode of band reflecting body, reflecting body can be parabola or ellipsoid; Sparking electrode (5) is by the inner wire (9) of transmission line, the interior insulation (10) of transmission line, and the outer conductor of transmission line (11), the external insulation of transmission line (12), reflecting body (13), low-field electrode (14), electrode insulation (15), high-field electrode (16) is formed; High-field electrode (16) adopts metal material to make, and an end is connected with transmission line inner wire (9), and the other end is positioned at the focus place of reflecting body (13); Electrode insulation (15) adopts insulating material such as teflon to make, and is enclosed within outside the high-field electrode (16), and low-field electrode (14) is made by stainless steel, is enclosed within outside the electrode insulation (15), and is connected with transmission line outer conductor (11); Reflecting body (13) is made by metal material, and an end is processed into indent half ellipsoidal surface or parabola, adopts screw thread or welding manner to be connected with low-field electrode (14).The center line of reflecting body (13), low-field electrode (14), electrode insulation (15) and high-field electrode (16) is positioned on the same axis.
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| CNA2008102391131A CN101425290A (en) | 2008-12-09 | 2008-12-09 | Combined electric spark pulse sound source |
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| CNA2008102391131A CN101425290A (en) | 2008-12-09 | 2008-12-09 | Combined electric spark pulse sound source |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983774A (en) * | 2012-12-17 | 2013-03-20 | 浙江大学 | Liquid phase pulse discharge system based on multi-way switch delay output |
| CN103021400A (en) * | 2013-01-11 | 2013-04-03 | 中国人民解放军国防科学技术大学 | Two-stage power supply type submarine spark acoustic source |
| CN103326612A (en) * | 2013-06-18 | 2013-09-25 | 中国科学院电工研究所 | Unipolar microsecond pulse high voltage power supply |
| CN103901464A (en) * | 2014-04-04 | 2014-07-02 | 西北工业大学 | Portable underwater strong sound source |
| CN104142515A (en) * | 2013-05-07 | 2014-11-12 | Pgs地球物理公司 | Pressure-compensated sources |
| CN105846481A (en) * | 2015-01-13 | 2016-08-10 | 深圳市新宜康科技有限公司 | Safe and fast large-power discharging device and charging and discharging method |
| CN109859735A (en) * | 2019-02-20 | 2019-06-07 | 西安闪光能源科技有限公司 | A kind of plasma low-frequency sound source and its timing control synthetic method |
| CN114465193A (en) * | 2022-01-11 | 2022-05-10 | 深圳市德拜科技有限公司 | Underwater sound wave generating device, control method, system and storage medium |
-
2008
- 2008-12-09 CN CNA2008102391131A patent/CN101425290A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014094515A1 (en) * | 2012-12-17 | 2014-06-26 | 浙江大学 | Discharge system for liquid phase pulses output in time-delay manner based on multiple switches |
| CN102983774A (en) * | 2012-12-17 | 2013-03-20 | 浙江大学 | Liquid phase pulse discharge system based on multi-way switch delay output |
| CN103021400A (en) * | 2013-01-11 | 2013-04-03 | 中国人民解放军国防科学技术大学 | Two-stage power supply type submarine spark acoustic source |
| CN104142515B (en) * | 2013-05-07 | 2019-03-01 | Pgs 地球物理公司 | Pressure compensation source |
| CN104142515A (en) * | 2013-05-07 | 2014-11-12 | Pgs地球物理公司 | Pressure-compensated sources |
| CN103326612B (en) * | 2013-06-18 | 2015-09-16 | 中国科学院电工研究所 | A kind of unipolarity microsecond pulse high voltage source |
| CN103326612A (en) * | 2013-06-18 | 2013-09-25 | 中国科学院电工研究所 | Unipolar microsecond pulse high voltage power supply |
| CN103901464A (en) * | 2014-04-04 | 2014-07-02 | 西北工业大学 | Portable underwater strong sound source |
| CN103901464B (en) * | 2014-04-04 | 2017-04-12 | 西北工业大学 | Portable underwater strong sound source |
| CN105846481A (en) * | 2015-01-13 | 2016-08-10 | 深圳市新宜康科技有限公司 | Safe and fast large-power discharging device and charging and discharging method |
| CN109859735A (en) * | 2019-02-20 | 2019-06-07 | 西安闪光能源科技有限公司 | A kind of plasma low-frequency sound source and its timing control synthetic method |
| CN109859735B (en) * | 2019-02-20 | 2022-11-08 | 西安闪光能源科技有限公司 | Plasma low-frequency sound source and time sequence control synthesis method thereof |
| CN114465193A (en) * | 2022-01-11 | 2022-05-10 | 深圳市德拜科技有限公司 | Underwater sound wave generating device, control method, system and storage medium |
| CN114465193B (en) * | 2022-01-11 | 2024-01-16 | 深圳市德拜科技有限公司 | Underwater sound wave generating device, control method, system and storage medium |
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Open date: 20090506 |