CN205785498U - A kind of shadow rocket projectile high-altitude explosion subsonics harvester - Google Patents
A kind of shadow rocket projectile high-altitude explosion subsonics harvester Download PDFInfo
- Publication number
- CN205785498U CN205785498U CN201620499974.3U CN201620499974U CN205785498U CN 205785498 U CN205785498 U CN 205785498U CN 201620499974 U CN201620499974 U CN 201620499974U CN 205785498 U CN205785498 U CN 205785498U
- Authority
- CN
- China
- Prior art keywords
- subsonics
- harvester
- voice coil
- rocket projectile
- microphone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The open a kind of shadow rocket projectile high-altitude explosion subsonics harvester of this utility model, gathers microphone including phase inverting box and infrasonic wave；The antetheca of described phase inverting box is provided with speaking terminal and paraphase mouth, speaking terminal and paraphase mouth and is connected by elbow-type conduit 5 in case；Described infrasonic wave gathers microphone and is arranged at speaking terminal, it includes the vibrating diaphragm of enlarging, and connecting bottom vibrating diaphragm has voice coil loudspeaker voice coil, voice coil loudspeaker voice coil to be sleeved on permanent magnet, and it being connected to booster transformer, the signal output part of booster transformer constitutes infrasonic wave and gathers the signal output part of microphone.This utility model strengthens the energy of subsonics sound wave by phase inverting box thus collects low-energy subsonics sound wave；Shell can be resisted and go out sonic impinging power powerful during thorax；And apparatus cost is cheap, energy consumption is relatively low.
Description
Technical field
This utility model relates to shadow rocket signal acquisition technique field, is specially a kind of shadow rocket projectile high-altitude explosion subsonics and gathers
Device.
Background technology
In recent years, owing to mankind's activity exacerbates the change of climatic environment, diastrous weather frequently occurs, and shadow rocket gun is people
Work intervention weather achieves the important function prevented and reduced natural disasters.In order to assess shadow operation effectiveness, review rocket projectile duds and shift to an earlier date
The quantity of blast, needs to be acquired shellbursting signal.
Shadow rocket projectile high-altitude explosion signals collecting has following features: 1. the main energetic shellbursting sound concentrates on HFS,
But the sound transmission of this frequency range is close together, and distant (rocket gun 4 km, the antiaircraft gun 6.8 km left side of shell blow-up point
Right), it is possible to the energy of the sound wave sent back is the least, is difficult to gather；2. the subsonics part of blast can propagate larger distance, but sound
Wave energy is little, and the signal of telecommunication that the sound wave obtained is converted into is the least, the most easy to identify；3. equipment is placed near antiaircraft gun or rocket gun,
Require that pickup vibrations material has sufficiently strong acoustic resistive wave impact ability.
The most existing sound localization is all the highly sensitive mike used or other secondary acoustic device with identification, no
The most expensive, and the ability of anti-strength sonic impinging is weak, does not has a subaudio frequency being applicable near antiaircraft gun or rocket gun to adopt
Storage.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of shadow rocket projectile that can collect low-yield infrasonic wave
High-altitude explosion subsonics harvester, this device can resist shell and go out sonic impinging power powerful during thorax, and cheap.Technology
Scheme is as follows:
A kind of shadow rocket projectile high-altitude explosion subsonics harvester, gathers microphone including phase inverting box and infrasonic wave；Described phase inverting box
Antetheca be provided with speaking terminal and paraphase mouth, speaking terminal and paraphase mouth and connected by elbow-type conduit 5 in case；Described infrasonic wave collection
Microphone is arranged at speaking terminal, and it includes the vibrating diaphragm of enlarging, and connecting bottom vibrating diaphragm has voice coil loudspeaker voice coil, voice coil loudspeaker voice coil to be sleeved on permanent magnet
On, and it being connected to low noise impedance transducer, the signal output part of low noise impedance transducer constitutes infrasonic wave and gathers the signal of microphone
Outfan.
Further, described vibrating diaphragm is PET film.
Further, the 1/2 of the wave length of sound of a length of low-limit frequency collected of described elbow-type conduit.
Further, described elbow-type conduit is more and more thinner from paraphase mouth to speaking terminal.
Further, the opening part of described vibrating diaphragm is arranged with hurricane globe, and described hurricane globe includes metal cap and the inside of outside
Spongy body.
Further, also include that being connected to infrasonic wave gathers the signal processing unit of microphone signal outfan, at described signal
One-level amplifying circuit that reason unit includes being sequentially connected with, second amplifying circuit, bandwidth-limited circuit, at a high speed 16 AD circuit and
Communication interface.
Further, described one-level amplifying circuit includes that audion T, the emitter stage of audion T are connected to letter by resistance Rs
Number input；Base stage electric capacity Cb in parallel and resistance Rbp ground connection, and it is connected to power supply by resistance Rb；Colelctor electrode leads to
Crossing resistance Rc and be connected to power supply, and be connected to signal output part by electric capacity Cc, signal output part load is resistance R1.
The beneficial effects of the utility model are:
1) this utility model strengthens the energy of subsonics sound wave by phase inverting box, thus realizes the collection of low-energy subsonics sound wave；
2) infrasonic wave of the present utility model gathers microphone and uses moving-coil type bass horn, it is possible to opposing shell goes out sound powerful during thorax
Wave impact power；
3) infrasonic wave of the present utility model collection microphone can make the low-yield infrasonic wave collected be converted into the mistake of the signal of telecommunication
Journey effectively reduces the impact of electrical noise；
4) apparatus cost is cheap, and energy consumption is relatively low.
Accompanying drawing explanation
Fig. 1 is this utility model shadow rocket projectile high-altitude explosion subsonics harvester appearance assumption diagram.
Fig. 2 is this utility model shadow rocket projectile high-altitude explosion subsonics harvester internal structure schematic diagram.
Fig. 3 is that the infrasonic wave of this utility model shadow rocket projectile high-altitude explosion subsonics harvester gathers microphone construction schematic diagram.
Fig. 4 is the signal processing unit structured flowchart of this utility model shadow rocket projectile high-altitude explosion subsonics harvester.
Fig. 5 is the schematic diagram of this utility model shadow rocket projectile high-altitude explosion subsonics harvester one-level amplifying circuit.
In figure: 1-phase inverting box；2-speaking terminal；3-paraphase mouth；4-infrasonic wave gathers microphone；41-vibrating diaphragm；42-voice coil loudspeaker voice coil；43-permanent magnetism
Body；44-low noise impedance transducer；45-hurricane globe 45；46-signal strengthens module；5-elbow-type conduit；6-signal processing unit.
Detailed description of the invention
With specific embodiment, this utility model is described further below in conjunction with the accompanying drawings.As depicted in figs. 1 and 2, a kind of shadow
Rocket projectile high-altitude explosion subsonics harvester, gathers microphone 4 including phase inverting box 1 and infrasonic wave；The antetheca of described phase inverting box 1
It is provided with speaking terminal 2 and paraphase mouth 3, speaking terminal 2 and paraphase mouth 3 to be connected by elbow-type conduit 5 in case；Described infrasonic wave is adopted
Collection microphone 4 is arranged at speaking terminal 2, and it includes the vibrating diaphragm 41 of enlarging, and connecting bottom vibrating diaphragm 41 has voice coil loudspeaker voice coil 42, sound
Circle 42 is sleeved on permanent magnet 43, and is connected to low noise impedance transducer 44, the signal output part of low noise impedance transducer 44
Constitute infrasonic wave and gather the signal output part of microphone 4.
Because sound wave is after long-distance communications, remaining low frequency component energy is low, is difficult to gather, thus right by phase inverting box 1
Same audio signal carries out the steering-effecting of 180 degree and gathers the rear end of microphone 4 to strengthen the collection of audio signal in infrasonic wave.
In order to prevent out the impact of thorax shell strength sound wave, moving-coil type bass horn is used to gather microphone 4 as infrasonic wave, its profit
With transduction principle, acoustic signals is converted into the signal of telecommunication.When sound wave arrives vibrating diaphragm 41, drive voice coil loudspeaker voice coil 42 at the magnetic of permanent magnet 43
In Chang, vibration produces faradic current, thus realizes acoustic-electric and convert.Last further through low noise impedance transducer 44 enhancing signal.
The vibrating diaphragm 41 of the present embodiment is PET film.This film is a kind of good mechanical performance, and impact strength and tensile strength are big
Thin film, device is arranged near antiaircraft gun or rocket gun, will not by be gone out thorax shell strength sound wave shake brokenly.Simultaneously at microphone
Stem increases a signal and strengthens module 46.
The 1/2 of the wave length of sound of a length of low-limit frequency collected of the elbow-type conduit 5 of the present embodiment.The present embodiment lowest frequency sound
The frequency of ripple takes 200Hz, then a length of about 0.7 meter of corresponding elbow-type conduit 5.
The elbow-type conduit 5 of the present embodiment is increasingly thinner from paraphase mouth 3 to speaking terminal 2, i.e. L1 in Fig. 2 > L2 > L3.This structure has
There is the effect strengthening acoustic wave energy.Wherein, paraphase mouth 3 and speaking terminal 2 area equation, increase the receiving plane of sound as far as possible
Long-pending.
The opening part of the vibrating diaphragm 41 of the present embodiment is arranged with hurricane globe 45, and described hurricane globe 45 includes the metal cap and interior of outside
The spongy body in portion.Outdoor environment is complicated, and wind or other sound can make microphone be interfered, so to add a hurricane globe,
Outside metal cap can resist the impact of external force, protects microphone；Spongy body can weaken, stop the entrance of air-flow.Due to sound
Sound is not the directed movement of air-flow, but a kind of mechanical wave, so it is affected the least by fan housing.
The present embodiment also includes being connected to infrasonic wave and gathers the signal processing unit 6 of microphone 4 signal output part, as shown in Figure 4,
One-level amplifying circuit that described signal processing unit 6 includes being sequentially connected with, second amplifying circuit, bandwidth-limited circuit, at a high speed 16
Position AD circuit and communication interface.
The voltage signal obtained by infrasonic wave collection microphone 4 only has about tens microvolts, it is necessary to is amplified by one-level, reaches milli
Volt level signal just can proceed back-end circuit and process.The maximum difficult point of chopped-off head amplifying circuit is to suppress noise, the present embodiment
Using straight coupling, low noise, high-amplification-factor circuit is as one-level amplifying circuit, and its amplification coefficient can reach 100 times, cardinal principle
As it is shown in figure 5, one-level amplifying circuit includes that audion T, the emitter stage of audion T are connected to signal input part by resistance Rs；
Base stage electric capacity Cb in parallel and resistance Rbp ground connection, and it is connected to power supply by resistance Rb；Colelctor electrode passes through resistance Rc
Being connected to power supply, and be connected to signal output part by electric capacity Cc, signal output part load is resistance R1.
The millivolt level signal of telecommunication amplified by one-level carries out two grades of amplifications, filtering again, after AD conversion, obtains digital signal by passing through
Communication module sends and carries out further digitized processing.
Claims (7)
1. a shadow rocket projectile high-altitude explosion subsonics harvester, it is characterised in that include that phase inverting box (1) and infrasonic wave collection pass
Sound device (4)；The antetheca of described phase inverting box (1) is provided with speaking terminal (2) and paraphase mouth (3), speaking terminal (2) and paraphase
Mouth (3) is connected by elbow-type conduit (5) in case；Described infrasonic wave gathers microphone (4) and is arranged on speaking terminal (2)
Place, it includes that the vibrating diaphragm (41) of enlarging, the connection of vibrating diaphragm (41) bottom have voice coil loudspeaker voice coil (42), voice coil loudspeaker voice coil (42) suit
On permanent magnet (43), and it is connected to low noise impedance transducer (44), the signal output of low noise impedance transducer (44)
End constitutes infrasonic wave and gathers the signal output part of microphone (4).
Shadow rocket projectile high-altitude explosion subsonics harvester the most according to claim 1, it is characterised in that described vibrating diaphragm (41)
For PET film.
Shadow rocket projectile high-altitude explosion subsonics harvester the most according to claim 1, it is characterised in that described elbow-type conduit
(5) the 1/2 of the wave length of sound of a length of low-limit frequency collected.
Shadow rocket projectile high-altitude explosion subsonics harvester the most according to claim 1, it is characterised in that described elbow-type conduit
(5) more and more thinner to speaking terminal (2) from paraphase mouth (3).
Shadow rocket projectile high-altitude explosion subsonics harvester the most according to claim 1, it is characterised in that described vibrating diaphragm (41)
Opening part be arranged with hurricane globe (45), described hurricane globe (45) includes the metal cap of outside and internal spongy body.
Shadow rocket projectile high-altitude explosion subsonics harvester the most according to claim 1, it is characterised in that also include being connected to
Infrasonic wave gathers the signal processing unit (6) of microphone (4) signal output part, and described signal processing unit (6) includes
The one-level amplifying circuit that is sequentially connected with, second amplifying circuit, bandwidth-limited circuit, at a high speed 16 AD circuit connect with communicating
Mouthful.
Shadow rocket projectile high-altitude explosion subsonics harvester the most according to claim 6, it is characterised in that described one-level is amplified
Circuit includes that audion T, the emitter stage of audion T are connected to signal input part by resistance Rs；Base stage is in parallel
Electric capacity Cb and resistance Rbp ground connection, and it is connected to power supply by resistance Rb；Colelctor electrode is connected to power supply by resistance Rc,
And it being connected to signal output part by electric capacity Cc, signal output part load is resistance R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620499974.3U CN205785498U (en) | 2016-05-27 | 2016-05-27 | A kind of shadow rocket projectile high-altitude explosion subsonics harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620499974.3U CN205785498U (en) | 2016-05-27 | 2016-05-27 | A kind of shadow rocket projectile high-altitude explosion subsonics harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785498U true CN205785498U (en) | 2016-12-07 |
Family
ID=57408653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620499974.3U Withdrawn - After Issue CN205785498U (en) | 2016-05-27 | 2016-05-27 | A kind of shadow rocket projectile high-altitude explosion subsonics harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205785498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953910A (en) * | 2016-05-27 | 2016-09-21 | 成都信息工程大学 | Silhouette rocket bomb high-altitude explosion sub-tone acquisition device |
-
2016
- 2016-05-27 CN CN201620499974.3U patent/CN205785498U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953910A (en) * | 2016-05-27 | 2016-09-21 | 成都信息工程大学 | Silhouette rocket bomb high-altitude explosion sub-tone acquisition device |
| CN105953910B (en) * | 2016-05-27 | 2019-04-16 | 成都信息工程大学 | A kind of shadow rocket projectile high-altitude explosion subsonics acquisition device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206061094U (en) | Loudspeaker enclosure | |
| CN206585698U (en) | Loudspeaker enclosure | |
| CN204971346U (en) | General electrostethophone | |
| WO2015113401A1 (en) | Apparatus for charging mobile phone in sound driven manner | |
| CN205785498U (en) | A kind of shadow rocket projectile high-altitude explosion subsonics harvester | |
| CN203504716U (en) | Three-terminal noise-reduction microphone | |
| CN101980547A (en) | Earphone | |
| CN105953910B (en) | A kind of shadow rocket projectile high-altitude explosion subsonics acquisition device | |
| CN207070253U (en) | A kind of mobile terminal, ear-micro phone and its Electret condenser microphone circuit | |
| CN106331917A (en) | Remote pickup | |
| CN209806082U (en) | Telephone transmitter | |
| CN103458333A (en) | High-fidelity high-anti-noise moving-coil microphone with excellent electromagnetic compatibility | |
| CN203708066U (en) | Mobile phone charged in voice-activated mode | |
| CN205666067U (en) | Microphone array speech enhancement circuit | |
| CN102121986A (en) | Bionic sonar capsule | |
| CN107478324A (en) | Noisemeter | |
| CN110099342B (en) | Transmitter unit | |
| CN208258006U (en) | A kind of electret capacitor microphone reducing noise | |
| CN203057507U (en) | A-weighted microphone device for double-audio-frequency phone | |
| CN208210208U (en) | A kind of microphone of novel noise reduction | |
| CN206629228U (en) | A kind of passive microphone sound cavity apparatus for realizing far field pickup | |
| CN205647443U (en) | Electron radio signal transmits amplifier | |
| CN218570471U (en) | Anti-static loudspeaker | |
| CN203446025U (en) | Wireless multifunctional sound collection emitter | |
| CN201716422U (en) | Portable micro-sound collecting life detecting instrument used after earthquakes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20190416 |
|
| AV01 | Patent right actively abandoned |