CN105306014A - Impulsive sound generation method - Google Patents
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- CN105306014A CN105306014A CN201510596115.6A CN201510596115A CN105306014A CN 105306014 A CN105306014 A CN 105306014A CN 201510596115 A CN201510596115 A CN 201510596115A CN 105306014 A CN105306014 A CN 105306014A
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Abstract
The invention relates to an impulsive sound generation method. Discharge is formed on a polarized magnetic medium discharge body by high voltage electric energy to generate strenuous vibration on the air on the surrounding of the discharge body to generate sound. The impulsive sound generation method comprises the following steps: 1) using 12V direct current as a system power supply; 2) converting 12V low voltage current into 5000 V/10mA high voltage current by a high voltage constant current inverter circuit; 3) conducting the high voltage constant current inverter circuit with a high voltage energy storage capacitor; 4) conducting the high voltage energy storage capacitor with a polarized magnetic medium discharge body through a high voltage resistant electromagnetic switch to release high voltage electric energy into the polarized magnetic medium discharge body; and 5) forming high voltage discharge in the polarized magnetic medium discharge body to vibrate the surrounding air to generate sound. According to the impulsive sound generation method provided by the invention, high voltage energy storage is utilized, impulsive sound is generated on the polarized magnetic medium in a discharge manner, the security is good, the sound energy is large, and the maximum sound energy can reach 150dB.
Description
Technical field
The present invention relates to technical field of acoustics, be specifically related to utilize apparatus artificially to simulate the method for sounding, the present invention refers in particular to a kind of method utilizing the mode of high-voltage energy storage to produce pulse sound.The reverberation time that the method can be applicable to the impulse response integration method of the auditorium of architectural acoustics measures, and may be used on medical domain to the stimulation of the biological sense of hearing and measurement.
Background technology
Reverberation time evaluates auditorium quality, and the basic parameter in the field such as Material acoustic performance and Noise measarement is to sound clear concept, or the objective parameter that subjective feeling is well correlated with.One of basic skills obtaining this parameter is exactly measure the reverberation time by impulse response integration method, and pulse sound signal source is one of this method of measurement basic equipment that must be equipped with.
Pulse sound source is measured in the sound absorption of architectural acoustics, sound insulation and reverberation time and biologically in biomedical sector is all had important function to multiple fields such as neural and sense of hearing impacts.In prior art, flare pistol, balloon, firecracker, electric spark etc. are usually adopted to commonly use simple pulse sound signal source.Dangerous during flare pistol and firecracker use, there is the shortcoming of inconvenience and pollution.Balloon, the use of electric spark is inconvenient, and acoustic energy is little.And these all can not provide continuous print pulse sound.
Summary of the invention
Simple for solving existing pulse sound source vocal technique, discontinuous, sound is little, and energy is little, uneasy congruent problem, the invention provides a kind of method that pulse sound occurs.The method utilizes high-voltage energy storage, and by controlling high-pressure resistant electromagnetic switch conduction high-voltage capacitance, the mode making electric energy form electrion on polarization magnetic media produces pulse sound, safety, and acoustic energy is large, and maximum acoustic energy can reach 150dB.
For achieving the above object, the present invention takes following technical scheme: a kind of method that pulse sound occurs, it is characterized in that: be in polarization magnetic media discharge body, form electric discharge by high voltage electric energy, make discharge body ambient air produce strenuous vibration and sound, specifically comprise the steps:
1) deposit of low tension: using 12V direct current as system low-voltage power supply;
2) inversion from low tension to high-tension electricity: change 12V low tension into 5000V/10mA high-tension electricity by a high voltage and constant current inverter circuit;
3) deposit of high voltage electric energy: by described high voltage and constant current inverter circuit and a high-voltage energy storage capacitor conducting, makes 5000V/10mA high-tension electricity be stored in described high-voltage energy storage capacitor;
4) triggering of high voltage electric energy: by a high-pressure resistant electromagnetic switch, polarize described high-voltage energy storage capacitor and one conducting of magnetic media discharge body, makes the high voltage electric energy stored in described high-voltage energy storage capacitor be discharged in described polarization magnetic media discharge body;
5) generation of pulse sound: form high-pressure conductive loop in described polarization magnetic media discharge body, polarized magnets surrounding air is shaken and sounding.
Further, in described step 1) in, 12V direct current directly comes from storage battery power supply, or is converted by civil power.Wherein said storage battery selects one of 6Ah/12V lead-acid battery or lithium battery, meets discharge and recharge number of times 100 times.
In described step 2) in, the concrete grammar by described high voltage and constant current inverter circuit 12V low tension being changed into 5000V/10mA high-tension electricity is: described high voltage and constant current inverter circuit comprises a MST32F103 processor of single chip computer, high frequency MOS switching tube and high frequency transformer, rectifier; Described circuit ON 12V DC power supply, described processor progressively opens high frequency MOS switching tube according to PWM algorithm, opens high frequency transformer output voltage, exports after full-wave rectification; The voltage signal exported after the full-wave rectification of processor synchronous acquisition high frequency transformer and current signal, by the error of PWM algorithm multilevel iudge output voltage and electric current, then the error amount of response is adjusted, the opening of control MOS switching tube once again, adjustment transformer output valve, until reach voltage, the current value of default, finally obtain the high pressure of 5000V and the continuous current of 10mA.
Further, described high-voltage energy storage capacitor adopts CBB22155 polypropylene high-voltage capacitance, and capacity is 1.5 microfarads, withstand voltage 2000 volts, and carry out 3 strings 12 parallel connections, reach withstand voltage 6000 volts, capacity is the large bulk capacitance of 12 microfarads.
Further, in step 4) described in high-pressure resistant electromagnetic switch, for electromagnetic contact formula switch, clearance distance between the dynamic and static contact in switch is minimum is 10mm, dynamic and static contact all adopts silver-plated coated, the diameter of contact is minimum is 8mm, and solenoid adopts the solenoid of 24W/12V, and electromagnetic attraction reaches 500g.
By high-pressure resistant electromagnetic switch, by described high-voltage energy storage capacitor and the method for operation of polarization magnetic media discharge body conducting be: manipulate high-pressure resistant electromagnetic switch by the mode of wireless remote control or wired shake-up, solenoid is energized, and then make dynamic and static contact, by high-voltage energy storage capacitor and the conducting of polarization magnetic media discharge body.
Further, described polarization magnetic media discharge body adopts two panels to carry out being connected in series the circuit formed through the polarization magnetic sheet of 10000 volts of voltage polarizings after 20 minutes, two panels polarization magnetic sheet arcing distance is 40mm, sends the pulse sound of 150dB when connection 5000 volts of high pressure around.
The beneficial effect that the present invention has owing to taking above technical scheme is:
1, the present invention has easy to carry, safety, the feature that sounding acoustic energy is large, and maximum performance reaches 150dB.
2, adopt 6 ampere-hour lead-acid batteries to power, big current constant-current charging circuit realizes charge in batteries, facilitates battery maintenance and use.
3, adopt wireless remote control and the electrion of light current switch control rule high-voltage electromagnetic switch on and off high voltage electric energy realization to polarity electromagnetic medium, realize stable mode of operation.
4, special high-voltage electromagnetic switch is adopted to ensure effective break-make and the steady operation of high voltage electric energy.
5, constant current inverter circuit is adopted to realize the conversion of low high voltage.
6, the effective energy storage of high-voltage energy storage capacitor CBB22 capacity 1.5 microfarad realization to high voltage electric energy is adopted.
7, adopt polarization magnetic media to improve the conversion of electroacoustic energy as electric discharge medium, greatly improve the acoustic energy occurred.
8, utilize the method can simulate the sound producing various frequency, the reverberation time being applied to the impulse response integration method of the auditorium of architectural acoustics measures.
9, the method is utilized can to provide a kind of portable reliable pulse sound sounding body for the imitative blast of medical domain experiment to aspects such as the infringements of biological neural and the sense of hearing.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention;
Fig. 2 is big current constant-current charging circuit electrical principle block diagram;
Fig. 3 is in big current constant-current charging circuit, and processor is for the adjustment process figure of electric current;
Fig. 4 is high voltage and constant current inverter circuit electrical principle block diagram;
Fig. 5 is the structure vertical view of high-pressure resistant electromagnetic switch;
Fig. 6 is the structural front view of high-pressure resistant electromagnetic switch;
Fig. 7 is the structure chart of polarization magnetic media discharge body insulator and electric conductor;
Fig. 8 is that polarization magnetic media discharge body is dismantled the structure chart after insulator;
Fig. 9 is the figure that the textural association of polarization magnetic media discharge body becomes galvanic circle.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.But those skilled in the art will appreciate that following examples are not the unique restriction done technical solution of the present invention, every any equivalents of doing under technical solution of the present invention Spirit Essence or change, all should be considered as belonging to protection scope of the present invention.
As shown in Figure 1, the method that this pulse sound provided by the invention occurs, its core on polarization magnetic media, forms electric discharge by high-voltage energy storage capacitor, makes magnetic media surrounding air produce strenuous vibration, thus produce high energy sound.Specifically comprise following process:
1, the deposit of low tension
The invention provides low pressure deposit electricity, in order to the inversion to high-tension electricity.Its low-voltage power supply measure comprises 220V mains-supplied and/or storage battery power supply, and wherein storage battery is standing power supply, although accumulators electric power storage too when using mains-supplied.Mesolow electricity of the present invention refers to accumulators store DC low-voltage electricity, configuration storage battery power supply, is on the one hand can portable use, is convenient to research and development portable hand held generator, carries with operation; On the other hand also can for subsequent use as civil power, convenient when working without when electrical network or civil power power-off; The basic effect being exactly storage battery is more on the one hand to provide low-voltage DC.Therefore the storage battery power supply mode demand fulfillment discharge and recharge number of times long enough adopted, is 100 times, generally selects 6Ah/12V lead-acid battery to power or lithium battery power supply.
In use 220V alternating current charges a battery, it is too small that the present invention improves general charger charging current to battery live part, the defect that charging interval is oversize, but adopt big current constant-current charging circuit to charge a battery, facilitate maintenance and the use of battery.This big current constant-current charging circuit adopts MST32F103 High Performance SCM Microprocessor S3C44B0X low-voltage and high-current mode to charge, this processor carries 12 AD conversion module, conveniently the voltage and current signal of charge circuit is gathered, again by feedback of voltage and current signal, the output valve of adjustment electric current, until meet preset value.Its electrical principle as shown in Figure 2, charging process comprises a rectification, the process of filtering, process, the process of secondary rectifying and wave-filtering and the process of voltage and current signal feedback that high frequency voltage transformation exports, and to the process that electric current adjustment exports again, realize the constant current large current charge mode to storage battery with this.Circuit ON 220V alternating current, 220V alternating current takes the lead in carrying out a rectification, filtering, be energized to high frequency transformer through HF switch metal-oxide-semiconductor, high frequency transformer frequency is at 300KHz, electric current at high frequency transformer output through secondary filtering rectification, obtain 14V and 5V two-way direct voltage, 14V this lead up to metal-oxide-semiconductor and to charge a battery use (because nominal battery value 6Ah/12V), this road of 5V to power use to processor.Have one after secondary rectifying and wave-filtering and feed back signal to high frequency transformer; Processor obtains electricity work, battery current voltage signal is gathered by AD conversion module, detect charge circuit battery status, if battery charge does not meet the current value preset in processor, processor then can control output voltage and the output current of metal-oxide-semiconductor according to the internal resistance of cell, until meet charging pre-set current value.
This wherein, processor for electric current adjustment process as shown in Figure 3, be provided with register in processor, for storage voltage, current signal in wherein, time initial, initialization carried out to it.Be preset with to the charging current value of battery in processor, during work, first processor judges whether AD conversion module has collected the voltage signal of storage battery, if do not collect voltage signal, then returns Resurvey; If collected voltage signal, then can export corresponding current value according to current voltage tabular value.Then present current value and set point are compared, if present current value is set point, without the need to readjust current, continue to gather voltage signal; If present current value is not set point, then needs the current value exported according to accumulator internal resistance adjustment voltmeter, till meeting set point, realize the constant current charge to battery.
2, the inversion from low tension to high-tension electricity
The transformation of the present invention from low tension to high-tension electricity is realized by a high voltage and constant current inverter circuit.High voltage and constant current inverter circuit provided by the invention, adopts MST32F103 high-performance monolithic processor control and management output voltage and electric current.Electrical diagram is shown in Fig. 4, after circuit ON 12V DC power supply (by aforesaid storage battery power supply), processor powers on and enters operating state, and processor progressively opens high frequency MOS switching tube according to PWM algorithm, open high frequency transformer output voltage, export after full-wave rectification; The voltage signal exported after the full-wave rectification of processor synchronous acquisition high frequency transformer and current signal, the voltage exported by program multilevel iudge and the error of current value, then the error amount of response is adjusted, control MOS switching tube once again, again adjust transformer output valve, until reach voltage, the current value of default.By high voltage and constant current inverter circuit, utilize 12V direct current to power to constant current inverter circuit, finally obtain the high pressure of 5000V and the continuous current of 10mA.
The advantage of this high voltage and constant current inverter circuit is adopted to be: the adjustable extent of voltage is wide, and voltage, current value high accurancy and precision are controlled.
3, the deposit of high voltage electric energy
For the deposit of high voltage electric energy, what the present invention taked is store with high-voltage energy storage capacitor, due to 5000V high voltage electric energy will be stored, so high pressure storage of electrical energy adopts polypropylene high-voltage capacitance (CBB22155), capacity is 1.5 microfarads, withstand voltage 2000 volts, carries out 3 strings 12 parallel connections, reach withstand voltage 6000 volts, capacity is the large bulk capacitance of 12 microfarads.The high-tension electricity that high voltage and constant current inverter circuit produces is transported to high-voltage energy storage capacitor and stores.
4, the triggering of high voltage electric energy
The triggering of high voltage electric energy refers to closing by high-pressure resistant electromagnetic switch, makes high-voltage capacitance conducting realization electric discharge across the discharge.Consider the environment of maximum voltage 5000V, connecting control mode electric discharge medium competition needing to be different from routine, the present invention adopts a kind of special high-pressure resistant electromagnetic switch, improves the class of insulation by increasing contact gap, adopts electromagnetic type large distance contact magnetic control mode to realize electrion.
The structure of high-pressure resistant electromagnetic switch, is shown in shown in Fig. 5, Fig. 6, and the structure of this high-pressure resistant electromagnetic switch is emerging structure of the present invention.Comprise moving contact part and fixed contact part, be jointly arranged on a switch matrix 1, moving contact part comprises solenoid 2, electromagnetic core 3, switch movable contact point 4,5, insulator 6, switch movable contact point binding post 7,8.Solenoid 2 is fixed on switch matrix 1, is controlled energising or the off-position of itself and solenoid by the mode of wireless transceiver or wired button.The center of solenoid wears electromagnetic core 3, and one end of electromagnetic core is fixedly connected insulator 6, and the two ends of insulator are fixedly connected two switch movable contact points 4,5.In two switch movable contact points 4,5, switch movable contact point 4 is connected by flexible conductor with switch movable contact point binding post 7, and high-voltage energy storage capacitor positive pole is connected with switch movable contact point binding post 7; Switch movable contact point 5 is connected by flexible conductor with switch movable contact point binding post 8, and high-voltage energy storage capacitor negative pole is connected with switch movable contact point binding post 8.
Fixed contact part comprises two switch stationary contact points 9,10, two switch stationary contact point insulating bodies 11,12, with two switch stationary contact point binding posts 13,14, these six part symmetries are divided into two groups, switch stationary contact point 9 and switch stationary contact point binding post 13 are fixed on switch stationary contact point insulating body 11, switch stationary contact point 10 and switch stationary contact point binding post 14 are fixed on switch stationary contact point insulating body 12, spaced apart between two groups.Switch stationary contact point 9 is connected by flexible conductor with switch stationary contact point binding post 13, and the positive pole of the magnetic media discharge body that polarizes is connected with switch stationary contact point binding post 13, switch stationary contact point 10 is connected by flexible conductor with switch stationary contact point binding post 14, and the negative pole of the magnetic media discharge body that polarizes is connected with switch stationary contact point binding post 14.Above-mentioned two switch movable contact points, 4,5 and two switch stationary contact points 9,10 are divided into two groups, and switch movable contact point 4 is corresponding in pairs with switch stationary contact point 9, and switch movable contact point 5 is corresponding in pairs with switch stationary contact point 10.So when solenoid 2 connects direct current 12V power supply, under electromagnetic induction, electromagnetic force makes electromagnetic core 3 push (by direction as shown) left, promote insulator 6 to move to left, insulator moves to left and on insulator two moving contacts 4,5 is moved to left contact 9,10 with two fixed contacts to contact conducting respectively, due to the conducting of the dynamic and static contact of both positive and negative polarity, high-voltage energy storage capacitor will be made to discharge, high-tension electricity is formed at the two ends of polarization magnetic media discharge body, form electric discharge by polarization magnetic media discharge body, cause local air strenuous vibration and send a pulse sound.
Above-mentioned switch matrix 1, insulator 6 and insulator 11,12, all adopts insulating material, plays insulation buffer action.
The high-pressure resistant electromagnetic construction of switch that the present invention provides, large contact gap is adopted to improve the class of insulation, the clearance distance designed between dynamic and static contact is minimum is 10mm, can not be too little, otherwise high-pressure resistant electromagnetic switch (5000V) under the effect of high-voltage energy storage capacitor directly will puncture air forms conducting, and loses the make-break capacity to polarization magnetic media discharge body.Dynamic and static totally 4 contacts all adopt silver-plated coated, and oblate cylinder is preferentially selected in contact, and the diameter of contact is minimum is 8mm, and size large like this can ensure sound contact good contact, and area is the bigger the better, and contact area is large, and current carrying capability is strong.Solenoid adopts the solenoid of the 24W/12V of customization, and electromagnetic attraction can reach 500g.
The triggering of high voltage electric energy is exactly the closed realization by high-pressure resistant electromagnetic switch, and high-pressure resistant electromagnetic switch closes, and solenoid is energized, and then makes dynamic and static contact, and then high-voltage energy storage capacitor and the conducting of polarization magnetic media discharge body is discharged.
High-pressure resistant electromagnetic switch has the function of being discharged with the conducting of polarization magnetic media discharge body by high-voltage energy storage capacitor.To the control of high-pressure resistant electromagnetic switch, can adopt wireless or wired two kinds of maneuverability patterns, two kinds of modes are also deposited.
The mode of wireless remote control adopts wireless frequency to encode exactly and receives and dispatches binary channels control mode, and a passage realizes high-voltage energy storage, and another passage realizes electric discharge vocal function.Frequency coding wireless transceiver belongs to prior art, has a reflector and a receiver, and the code signal that reflector is launched has three category informations such as address code, numeric data code, synchronous code, launches 315MHz constant amplitude high-frequency signal by the starting of oscillation of ASK dispensable circuit.Receiver doublely receiving address code corresponding to high-frequency signal that reflector sends, numeric data code correctly just represents and receives successfully, start corresponding control circuit according to the order of numeric data code and drive corresponding relay, make relay work thus control high-voltage electromagnetic switch connection energy storage electric discharge, or high-voltage energy storage.
Wired shake-up is exactly adopt double contact switch, a reset contact, a latch contact, and reset contact realizes the function of electric discharge sounding, and latch contact realizes the function of high-voltage energy storage.
Thus, no matter be to adopt wireless or wired maneuverability pattern, the control of high-pressure resistant electromagnetic switch on and off can be realized, and high voltage and constant current inverter circuit be to the control of high-voltage energy storage capacitor energy storage.
5, the generation of pulse sound
The triggering of the high voltage electric energy that above-mentioned high pressure is mentioned, that is to say the precondition impelling pulse sound to occur.The generation of pulse sound is by being imposed to by high voltage electric energy in polarization magnetic media discharge body, making the instantaneous generation electrion of polarization magnetic media discharge body, force surrounding air shake and occur.
Polarization magnetic media discharge body adopts ferrite permanent-magnet materials, makes it have larger than the conductivity of air through high pressure 10000 volts of voltage polarizings after 20 minutes, but much smaller than the conductivity of metal, after polarization, conductive resistance every millimeter is 500 kilo-ohms.With the polarization magnetic sheet that two panels is made through the ferrite permanent-magnet materials polarized like this, being connected in series, doing polarization magnetic media discharge body, make electrion distance in the distance of 40mm, the pulse sound of 150dB can be sent when connecting high pressure 5000 volts.
The basic structure of the polarization magnetic media discharge body of the present invention's design is, comprise an insulator, be provided with positive and negative wire tie point in the insulator, positive and negative two wires are connected to high pressure positive and negative electrode by means of wire tie point, the two high pressure positive and negative electrodes magnetic sheet that polarizes with two panels respectively contacts, and two polarization magnetic sheets are electrically connected in series by electric conductor.When high pressure is energized, two polarization magnetic sheets form discharge loop, formation region of no pressure around polarization magnetic sheet, when after current vanishes, there are strong vibrations in ambient air, thus sounding, when high-voltage pulse current constantly supplies, constantly send pulse sound.
As shown in Fig. 7,8,9, in a preferred embodiment, the structure of described polarization magnetic media discharge body is: comprise an insulator 21, and the bottom of this insulator is cylindrical, is conducive to imbedding two positive and negative electrode wire joint pins 22,22 ' wherein.Two joint pins stretch into from the bear of insulator, are exposed in hole by its terminals, so that outer lead stretches into from punching, are connected to terminals.The top of insulator 21 is flat in two side millings by cylinder, and property at parts of edges and corners rounding forms, and the flat object of milling is convenient on flat horizontal surface, load laminar polarization magnetic sheet, and polarization magnetic sheet exposes in air.Left and right two panels polarization magnetic sheet 23,23 ' adopts the polarization magnetic sheet of more than diameter 20mm, thick more than 4mm, and the spacing between two panels polarization magnetic sheet is 40mm.Load an electric conductor 24 at the top-slitting of insulator 21, two panels polarization magnetic sheet 23,23 ' is electrically connected by electric conductor 24 at top.At two panels polarization magnetic sheet 23,23 ' in bottom, be then encased in two pieces of high pressure positive and negative electrodes 25,25 ' in insulator 21.Positive and negative electrode wire joint pin 22,22 ' is connected with high pressure positive and negative electrode 25,25 ' lower surface respectively, and high pressure positive and negative electrode 25,25 ' the upper surface magnetic sheet 23,23 ' that polarizes with two panels respectively contacts.Like this, when both positive and negative polarity wire access joint pin 22,22 ', just can find out from figure and form a galvanic circle by positive wire, joint pin 22, electrode 25, polarization magnetic sheet 23, electric conductor 24, polarization magnetic sheet 23 ', electrode 25 ', joint pin 22 ', cathode conductor, electrion is formed on polarization magnetic sheet 23,23 ' surface when accessing high-tension electricity, cause local air strenuous vibration and send a pulse sound (in the process of a high-tension electricity conducting, send a sound, be called pulse sound).Both positive and negative polarity wire recited above is exactly the electrode cable being connected to high-pressure resistant electromagnetic switch stationary contact point end.
The form of certain above-described embodiment is not as to unique restriction of the present invention.Polarization magnetic sheet 23 do circular or square can, shape is not particularly limited.
High-pressure reverse electromotive force and induced voltage can be produced because sounding is instantaneous in electric discharge, the present invention at high-voltage inverter circuit in the process of storage capacitor energy storage, add voltage and inductance compacting, the method minimizing high-pressure reverse electromotive forces such as instantaneous discharge and induced voltage are on the impact of other circuit.
The mode divided by structure above describes the production process of pulse sound, and generally speaking, the method that pulse sound set forth in the present invention occurs, comprises the steps:
1) using 12V direct current as system power supply, 12V direct current directly can come from storage battery power supply, or is converted by civil power, and the general selected model of storage battery is 6Ah/12V lead-acid battery or lithium battery;
2) low tension is changed into 5000V/10mA high-tension electricity by a high voltage and constant current inverter circuit;
3) by the mode of wired or wireless manipulation, 5000V/10mA high-tension electricity is stored in a high-voltage energy storage capacitor;
4) equally by the mode of wired or wireless manipulation, control a high-pressure resistant electromagnetic switch, high-pressure resistant electromagnetic switch is connected for the magnetic media discharge body that high-voltage energy storage capacitor and polarized, and makes the high voltage electric energy of storage be discharged in polarization magnetic media discharge body;
5) the magnetic media discharge body that polarizes energising, produces electrion, thus surrounding air is shaken and sounding.
In the process that the method realizes, several critical component and Key Circuit serve vital effect, wherein have high voltage and constant current inverter circuit, high pressure storage capacitance, high-pressure resistant electromagnetic switch, polarization magnetic media discharge body.Adopt MST32F103 high-performance monolithic processor control and management output voltage and electric current in high voltage and constant current inverter circuit, high-tension electricity can reach 5000V.Described high pressure storage of electrical energy adopts polypropylene high-voltage capacitance, and capacity is 1.5 microfarads, withstand voltage 2000 volts, can reach withstand voltage 6000 volts, capacity is the large bulk capacitance of 12 microfarads after carrying out 3 string 12 parallel connections.High-pressure resistant electromagnetic switch adopts specific structure to strengthen high-voltage resistance capability, and can be controlled by wired or wireless mode, wired or wireless mode all has double control function, can control conducting inverter circuit and carry out energy storage, also can control the release of high-voltage energy storage electric energy.Polarization magnetic media discharge body adopts the magnetic sheet through the voltage polarizing of high pressure 10000 volts discharge, have than air conductivity greatly, but much smaller than the conductivity of metal, can under high pressure to discharge.In addition, can, by a charging circuit to lead acid battery charge, 12V direct current be utilized to power to big current constant current inverter circuit by alternating current 220V civil power.
Specific implementation principle of the present invention is shown in Fig. 1, the effect between system components and cooperative work mode as follows:
The external alternating current 220V civil power of system, utilizes battery charger for charge in batteries, or directly by 12V storage battery as system power supply.By high voltage and constant current inverter circuit, storage battery low-voltage direct current is changed into high voltage direct current, then remote signal is sent by frequency coding wireless transceiver, or passing through the operation of contact key switch, the high voltage electric energy making inversion high voltage and constant current power supply circuits export the highest 5000V is stored in high-voltage capacitance; Energy storage terminates to send remote signal by frequency coding wireless transceiver, or by the operation of button, control high-pressure resistant electromagnetic switch, make the high-pressure energy be stored in high-voltage capacitance connect polarization magnetic media discharge body, the air strenuous vibration forming certain space under the effect of polarization magnetic media discharge body forms a pulse sounding.6Ah/12V direct-flow storage battery provides electric energy for whole device.The functions such as battery charging and the effect of power management module are charged to battery and monitoring battery electricity and high voltage electric energy value, the whole circuit of switch, anti-interference.Button realizes the emergency power under controlled in wireless disabled status, adopts Non-follow control high-voltage energy storage or pulse sounding.High voltage and constant current inverter circuit is used for that direct current 12V power supply is realized 0 by PWM pulse width modulation mode and exports to 5000V voltage, namely low voltage transition is become high-voltage functions.High-pressure resistant electromagnetic switch realizes the storage of 5000V high-tension electricity and carries out instantaneous break-make to realize pulse vocal function.The function of high-voltage energy storage capacitor is that the high voltage electric energy that high voltage and constant current inversion power supply circuits export is stored in electric capacity, to obtain enough energy to realize pulse sounding.Polarization magnetic media discharge body is mainly used in the space of raising air strenuous vibration to improve pulse sounding energy, improves the pulse acoustic energy produced.
Claims (7)
1. a method for pulse sound generation, is characterized in that: be in polarization magnetic media discharge body, form electric discharge by high voltage electric energy, make discharge body ambient air produce strenuous vibration and sound, specifically comprise the steps:
1) deposit of low tension: using 12V direct current as system low-voltage power supply;
2) inversion from low tension to high-tension electricity: change 12V low tension into 5000V/10mA high-tension electricity by a high voltage and constant current inverter circuit;
3) deposit of high voltage electric energy: by described high voltage and constant current inverter circuit and a high-voltage energy storage capacitor conducting, makes 5000V/10mA high-tension electricity be stored in described high-voltage energy storage capacitor;
4) triggering of high voltage electric energy: by a high-pressure resistant electromagnetic switch, polarize described high-voltage energy storage capacitor and one conducting of magnetic media discharge body, makes the high voltage electric energy stored in described high-voltage energy storage capacitor be discharged in described polarization magnetic media discharge body;
5) generation of pulse sound: form high-pressure conductive loop in described polarization magnetic media discharge body, polarized magnets surrounding air is shaken and sounding.
2. the method for pulse sound generation according to claim 1, is characterized in that: in described step 1) in, 12V direct current directly comes from storage battery power supply, or is converted by civil power.Wherein said storage battery selects one of 6Ah/12V lead-acid battery or lithium battery, meets discharge and recharge number of times 100 times.
3. the method that occurs of pulse sound according to claim 1, is characterized in that: in described step 2) in, the concrete grammar by described high voltage and constant current inverter circuit 12V low tension being changed into 5000V/10mA high-tension electricity is:
Described high voltage and constant current inverter circuit comprises a MST32F103 processor of single chip computer, high frequency MOS switching tube and high frequency transformer, rectifier;
Described circuit ON 12V DC power supply, described processor progressively opens high frequency MOS switching tube according to PWM algorithm, opens high frequency transformer output voltage, exports after full-wave rectification; The voltage signal exported after the full-wave rectification of processor synchronous acquisition high frequency transformer and current signal, by the error of PWM algorithm multilevel iudge output voltage and electric current, then the error amount of response is adjusted, the opening of control MOS switching tube once again, adjustment transformer output valve, until reach voltage, the current value of default, finally obtain the high pressure of 5000V and the continuous current of 10mA.
4. the method for pulse sound generation according to claim 1, is characterized in that: described high-voltage energy storage capacitor adopts CBB22155 polypropylene high-voltage capacitance, and capacity is 1.5 microfarads, withstand voltage 2000 volts, carry out 3 strings 12 in parallel, reach withstand voltage 6000 volts, capacity is the large bulk capacitance of 12 microfarads.
5. the method for pulse sound generation according to claim 1, it is characterized in that: step 4) described in high-pressure resistant electromagnetic switch, for electromagnetic contact formula switch, clearance distance between the dynamic and static contact in switch is minimum is 10mm, dynamic and static contact all adopts silver-plated coated, the diameter of contact is minimum is 8mm, and solenoid adopts the solenoid of 24W/12V, and electromagnetic attraction reaches 500g.
6. the method for pulse sound generation according to claim 1 or 5, it is characterized in that: by high-pressure resistant electromagnetic switch, by described high-voltage energy storage capacitor and the method for operation of polarization magnetic media discharge body conducting be: manipulate high-pressure resistant electromagnetic switch by the mode of wireless remote control or wired shake-up, solenoid is energized, and then make dynamic and static contact, by high-voltage energy storage capacitor and the conducting of polarization magnetic media discharge body.
7. the method for pulse sound generation according to claim 1, it is characterized in that: described polarization magnetic media discharge body adopts two panels to carry out being connected in series the circuit formed through the polarization magnetic sheet of 10000 volts of voltage polarizings after 20 minutes, two panels polarization magnetic sheet arcing distance is 40mm, sends the pulse sound of 150dB when connection 5000 volts of high pressure around.
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| CN201510596115.6A Active CN105306014B (en) | 2015-09-18 | 2015-09-18 | A kind of method that pulse sound occurs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113691239A (en) * | 2021-07-20 | 2021-11-23 | 西南石油大学 | Magnetic switch pulse generator for electric pulse rock breaking |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11220384A (en) * | 1998-02-02 | 1999-08-10 | Kobe Steel Ltd | Frequency generator |
| CN101359433A (en) * | 2008-08-25 | 2009-02-04 | 德州学院 | Multifunctional electromagnetic pulse experiment instrument |
| CN104836550A (en) * | 2015-05-08 | 2015-08-12 | 南京信息工程大学 | High-voltage pulse power supply trigger controller |
-
2015
- 2015-09-18 CN CN201510596115.6A patent/CN105306014B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11220384A (en) * | 1998-02-02 | 1999-08-10 | Kobe Steel Ltd | Frequency generator |
| CN101359433A (en) * | 2008-08-25 | 2009-02-04 | 德州学院 | Multifunctional electromagnetic pulse experiment instrument |
| CN104836550A (en) * | 2015-05-08 | 2015-08-12 | 南京信息工程大学 | High-voltage pulse power supply trigger controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113691239A (en) * | 2021-07-20 | 2021-11-23 | 西南石油大学 | Magnetic switch pulse generator for electric pulse rock breaking |
| CN113691239B (en) * | 2021-07-20 | 2023-10-03 | 西南石油大学 | Magnetic switch pulse generator for electric pulse rock breaking |
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| CN105306014B (en) | 2018-02-16 |
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