CN203981270U - A kind of digital underwater noise measuring device - Google Patents
A kind of digital underwater noise measuring device Download PDFInfo
- Publication number
- CN203981270U CN203981270U CN201420434247.XU CN201420434247U CN203981270U CN 203981270 U CN203981270 U CN 203981270U CN 201420434247 U CN201420434247 U CN 201420434247U CN 203981270 U CN203981270 U CN 203981270U
- Authority
- CN
- China
- Prior art keywords
- point
- receiver
- optical transmitter
- node
- bank
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model is a kind of digital underwater noise measuring device, belongs to underwater acoustic measurement technical field.Device by receiving hydrophone, signal before amplification module, point-to-point optical transmitter and receiver and computing machine form, point-to-point optical transmitter and receiver divides by the node under water of point-to-point optical transmitter and receiver and two independent parts of the node on the bank of point-to-point optical transmitter and receiver and forms, and between two independent parts, by optical cable, connects; Receiving hydrophone is arranged on lift under water and measures outside floating drum, before signal, amplification module is installed in floating drum, receiving hydrophone is connected with amplification module before signal by wire, the node installation under water of point-to-point optical transmitter and receiver is in seat bottom type watertight electronic compartment, the node on the bank of point-to-point optical transmitter and receiver and computing machine are placed in measures machine room on the bank, before signal, amplification module connection is connected with point-to-point optical transmitter and receiver by wire, the node on the bank of point-to-point optical transmitter and receiver is connected with computing machine by Ethernet, hard disc of computer real time record total data.
Description
Technical field
The utility model relates to a kind of digital underwater noise measuring device, is applicable to signals collecting, transmission, record and the analyzing and processing of the water surface, underwater sailing body radiated noise and underwater ambient noise.Belong to underwater acoustic measurement technical field.
Background technology
Underwater noise measurement system is mainly used in the water surface, the monitoring of underwater sailing body radiated noise and the monitoring of Underwater Acoustic Environment characteristic etc.Existing system generally adopts simulating signal metering system, its principle of work is: the nautical receiving set being laid under water receives after underwater sound signal, after sending front electric discharge road to amplify, by the mode of differential transfer, send signal handling equipment on the bank to process, then utilize magnetic tape station to record simulating signal; After off-test, magnetic tape station playback of data, utilizes equipment, the instruments such as oscillograph and spectrum analyzer that simulating signal is analyzed and processed, and draws measurement result.Which advantage is technology maturation, can carry out analyzing and processing by the advanced persons' such as signal recorder, spectrum analyzer instrument, shortcoming is: although one adopted differential transfer mode, but signal transmission distance is subject to the condition restriction such as cable to be difficult to significantly increase, and simulating signal (electric signal) is still easily interfered in transmitting procedure, affects measurement result; Two, test operation flow process is complicated, and user of service's professional skill is had relatively high expectations; Three, the equipment such as signal recorder, spectrum analyzer is comparatively expensive, and maintenance, repair cost is higher, and the cost effectiveness in equipment development and test use is higher.
Continuous progress along with the maturation of Fibre Optical Communication Technology and computer hardware technique, network technology, digitizing, simplification and the intelligent development trend that has become underwater sound measuring equipment development, simultaneously, underwater noise measurement system requires also more and more higher to measuring accuracy, signal transmission distance etc., therefore, be necessary more feasible, the effective measurement scheme of design.
Summary of the invention
The utility model, for the deficiency of above-mentioned simulating signal metering system, is invented a kind of digital underwater noise measuring device.It carries out the underwater noise measuring device of signal analysis and processing based on optical fiber and digitalization transmission appliance computer, allow signal transmit and process in structure and realized photoelectricity isolation, has improved the antijamming capability of measuring system.
The utility model completes by lower array structure: digital underwater noise measuring device by receiving hydrophone, signal before amplification module, point-to-point optical transmitter and receiver and computing machine form, wherein point-to-point optical transmitter and receiver divides by two independent parts of the node under water of point-to-point optical transmitter and receiver and the node on the bank of point-to-point optical transmitter and receiver and forms, and between two independent parts, by optical cable, connects;
Receiving hydrophone is arranged on lift under water and measures outside floating drum, before signal, amplification module is installed in floating drum, receiving hydrophone is connected with amplification module before signal by wire, the node installation under water of point-to-point optical transmitter and receiver is in seat bottom type watertight electronic compartment, the node on the bank of point-to-point optical transmitter and receiver and computing machine are placed in measures machine room on the bank, before signal, amplification module connection is connected with point-to-point optical transmitter and receiver by wire, the node under water of point-to-point optical transmitter and receiver is connected by optical fiber with the node on the bank of point-to-point optical transmitter and receiver, the node on the bank of point-to-point optical transmitter and receiver is connected with computing machine by Ethernet, hard disc of computer real time record total data.
Described point-to-point optical transmitter and receiver by the point-to-point optical transmitter and receiver of front end under water the node on the bank of the point-to-point optical transmitter and receiver of node and rear end form, the point-to-point optical transmitter and receiver of front end is the connecting by optical cable between node of point-to-point optical transmitter and receiver of node and rear end on the bank under water; Wherein node is by Anti-aliasing Filter Circuits under water for the point-to-point optical transmitter and receiver of front end, and A/D change-over circuit and electricity/light change-over circuit are linked in sequence and form, and the point-to-point optical transmitter and receiver of rear end on the bank node is comprised of light/power conversion circuit and data packing.
Before described signal, amplification module is comprised of signal amplification and signaling conversion circuit.
This device principle of work is: be placed on undersurface receiving hydrophone and receive underwater sound signal, underwater sound signal is after amplification module before signal amplifies processing, with the form of differential analog signal, access the node under water of point-to-point optical transmitter and receiver, the node under water of point-to-point optical transmitter and receiver carries out A/D conversion by analog difference signal and is first transformed to after electricity/light signal, electricity/light signal is converted to after light digital signal again, be transmitted through the fiber to the node on the bank of point-to-point optical transmitter and receiver, after the node on the bank of point-to-point optical transmitter and receiver carries out the conversion of light/electricity to signal, data are packaged into Ethernet energy accepted thing packet, send again computing machine to, record hard disk real time record in computing machine, whole digital signals in demonstration and storage experimentation, for research.
The utility model device has the following advantages: utilize Fibre Optical Communication Technology to complete the digital transmission of underwater sound signal, strengthened signal transmission distance, and realize photoelectricity isolation in signal transmission and processing structure, improve the antijamming capability of measuring system; The utility model device is converted to Ethernet data bag by optical fiber and digital signal on the coast and imports computing machine into, makes full use of the advantage that the modern high performance operational speed of a computer is fast, hard-disk capacity is large, has realized the record storage of high speed magnanimity underwater sound digital signal.
The utility model device possesses long distance of signal transmission, antijamming capability advantage strong and easy and simple to handle, and simple in structure, highly versatile, with low cost, can directly apply to the fields such as the water surface, the measurement of underwater sailing body radiated noise and underwater ambient noise measurement, there is significant military affairs, economic worth and good application prospect.
Accompanying drawing explanation
The structured flowchart of this device of Fig. 1.
The principle of work block diagram of this device of Fig. 2.
The signaling conversion circuit figure of this device of Fig. 3.
The Anti-aliasing Filter Circuits figure of this device of Fig. 4.
The A/D change-over circuit figure of this device of Fig. 5.
Electricity/light change-over circuit figure of this device of Fig. 6.
The schematic diagram of this device of Fig. 7 data recording flow process.
The process flow diagram that this device of Fig. 8 carries out post analysis processing to storage experimental signal.
Light/power conversion circuit figure of this device of Fig. 9.
Embodiment
A kind of digital underwater noise measuring device of the utility model by receiving hydrophone, signal before amplification module, point-to-point optical transmitter and receiver and computing machine form, wherein point-to-point optical transmitter and receiver divides by two independent parts of the node under water of point-to-point optical transmitter and receiver and the node on the bank of point-to-point optical transmitter and receiver and forms, and between two independent parts, by optical cable, connects.
Receiving hydrophone is arranged on lift under water and measures outside floating drum, before signal, amplification module is installed in floating drum, receiving hydrophone is connected with amplification module before signal by wire, the node installation under water of point-to-point optical transmitter and receiver is in seat bottom type watertight electronic compartment, the node on the bank of point-to-point optical transmitter and receiver and computing machine are placed in measures machine room on the bank, before signal, amplification module connection is connected with point-to-point optical transmitter and receiver by wire, the node under water of point-to-point optical transmitter and receiver is connected by optical fiber with the node on the bank of point-to-point optical transmitter and receiver, the node on the bank of point-to-point optical transmitter and receiver is connected with computing machine by Ethernet, hard disc of computer real time record total data.
Described point-to-point optical transmitter and receiver by the point-to-point optical transmitter and receiver of front end under water the node on the bank of the point-to-point optical transmitter and receiver of node and rear end form; Wherein node is by Anti-aliasing Filter Circuits under water for the point-to-point optical transmitter and receiver of front end, and A/D change-over circuit and electricity/light change-over circuit are linked in sequence and form, and the point-to-point optical transmitter and receiver of rear end on the bank node is connected to form by electricity/light change-over circuit and data packing.
Before described signal, amplification module is comprised of signal amplification and signaling conversion circuit.
The digital underwater noise measuring device of the utility model comprises receiving hydrophone, the front amplification module of signal, point-to-point optical transmitter and receiver and the computing machine that real time data shows, recording processing is used.The experimental signal that utilizes the digital underwater noise measuring device storage of the utility model, can carry out later stage signal playback, analysis and processing.Structure as shown in Figure 1.
By technical scheme, develop the hardware device of underwater sound signal remote collection and record analysis device, comprise: receiving hydrophone, front amplification module (signal processing circuit as shown in Figure 3), point-to-point optical transmitter and receiver are (by anti-aliasing filter module, A/D modular converter and electricity/light modular converter, form with light/power conversion circuit figure and data packing, as shown in Fig. 4～Fig. 6), choose high performance multi-purpose computer, be equipped with gigabit ethernet card.There is Sales module in anti-aliasing filter module, A/D modular converter, electricity/light modular converter and light/power conversion circuit figure market.
Installing and connecting apparatus is also laid on measurement waters: wherein receiving hydrophone is arranged on outside the floating drum of lift measurement under water, before signal, amplification module is installed in floating drum, the node installation under water of point-to-point optical transmitter and receiver is in seat bottom type watertight electronic compartment, the node on the bank of point-to-point optical transmitter and receiver and be placed in and measure machine room on the bank for data recording, analysis processing computer, can installation data register in computing machine, for carrying out post-processed, signal analysis and processing software can be installed again.
During signals collecting, device start, logout underwater sound signal data, carry out Real-time Collection, demonstration and the data recording work of underwater sound signal.After collection finishes, carry out late time data and divide folding to process, the examination post analysis that can use noise data interpretation software to carry out data is processed, and draws measurement result and forms test report.
After off-test, people can also pass through specialized signal interpretation software, and the data that are stored in computing machine are carried out to the various researchs such as playback, analysis and deal with data, further obtain Different Results, complete the measurement of underwater noise.Its principle of work as shown in Figure 2.
People can utilize the data of this device storage to carry out post-processed, can be according to original Ethernet data agreement redevelopment some underwater sound signal data logging softwares of design and noise data interpretation software.Wherein data logging software adopts VC++ to develop design, completes the record storage of high speed mass data in conjunction with Windows kernel programming technology such as Network Programming Technology, memory-mapped and multithreadings, and program circuit as shown in Figure 7; Interpretation software can adopt Matlab instrument to develop design, makes full use of late time data playback, processing, analysis and the result that its powerful science is calculated and visualization function completes after examination and shows, program circuit as shown in Figure 8.
The expensive instruments such as oscillograph, datalogger and spectrum analyzer before the work of this device post-processed can substitute with a computer simulation, greatly improved the intelligent level of noise measurement system, simplified the operating process of measuring test, reduced the cost effectiveness in test operation personnel's professional skill requirement and equipment development, use.
The present invention is based on the underwater noise signal measurement scheme that optical fiber and digital transmission and Computer Analysis are processed, develop a kind of digital underwater noise measuring device.This application of installation Fibre Optical Communication Technology is carried out the digital transmission of underwater sound signal, utilize the advantage that the modern high performance operational speed of a computer is fast, hard-disk capacity is large, in conjunction with application software, carry out data stored record and analyzing and processing, complete collection, transmission, record and the analyzing and processing of underwater noise signal.
Claims (3)
1. a digital underwater noise measuring device, it is characterized in that amplification module before noise-measuring system is by receiving hydrophone, signal, point-to-point optical transmitter and receiver and computing machine form, wherein point-to-point optical transmitter and receiver divides by two independent parts of the node under water of point-to-point optical transmitter and receiver and the node on the bank of point-to-point optical transmitter and receiver and forms, and between two independent parts, by optical cable, connects;
Receiving hydrophone is arranged on lift under water and measures outside floating drum, before signal, amplification module is installed in floating drum, receiving hydrophone is connected with amplification module before signal by wire, the node installation under water of point-to-point optical transmitter and receiver is in seat bottom type watertight electronic compartment, the node on the bank of point-to-point optical transmitter and receiver and computing machine are placed in measures machine room on the bank, before signal, amplification module connection is connected with point-to-point optical transmitter and receiver by wire, the node under water of point-to-point optical transmitter and receiver is connected by optical fiber with the node on the bank of point-to-point optical transmitter and receiver, the node on the bank of point-to-point optical transmitter and receiver is connected with computing machine by Ethernet, hard disc of computer real time record total data.
2. digital underwater noise measuring device according to claim 1, it is characterized in that point-to-point optical transmitter and receiver by the point-to-point optical transmitter and receiver of front end under water the node on the bank of the point-to-point optical transmitter and receiver of node and rear end form, the point-to-point optical transmitter and receiver of front end is the connecting by optical cable between node of point-to-point optical transmitter and receiver of node and rear end on the bank under water; Wherein node is by Anti-aliasing Filter Circuits under water for the point-to-point optical transmitter and receiver of front end, and A/D change-over circuit and electricity/light change-over circuit are linked in sequence and form, and the point-to-point optical transmitter and receiver of rear end on the bank node is comprised of light/power conversion circuit and data packing.
3. digital underwater noise measuring device according to claim 1, is characterized in that the front amplification module of signal is amplified by signal and signaling conversion circuit forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434247.XU CN203981270U (en) | 2014-08-04 | 2014-08-04 | A kind of digital underwater noise measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434247.XU CN203981270U (en) | 2014-08-04 | 2014-08-04 | A kind of digital underwater noise measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981270U true CN203981270U (en) | 2014-12-03 |
Family
ID=51978700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420434247.XU Expired - Fee Related CN203981270U (en) | 2014-08-04 | 2014-08-04 | A kind of digital underwater noise measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548993A (en) * | 2015-12-18 | 2016-05-04 | 中国人民解放军海军工程大学 | System and method for preventing measured noise from interference in vessel low-frequency radiation noise measurement |
| CN111693130A (en) * | 2020-06-20 | 2020-09-22 | 王茂法 | Marine environment noise measurement system |
-
2014
- 2014-08-04 CN CN201420434247.XU patent/CN203981270U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548993A (en) * | 2015-12-18 | 2016-05-04 | 中国人民解放军海军工程大学 | System and method for preventing measured noise from interference in vessel low-frequency radiation noise measurement |
| CN111693130A (en) * | 2020-06-20 | 2020-09-22 | 王茂法 | Marine environment noise measurement system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101446571B (en) | Nondestructive detecting device and detecting system | |
| CN109257123A (en) | The portable tester of transponder transmission module | |
| CN207300606U (en) | Transformer information collecting device based on Principles of Acoustics | |
| CN202524395U (en) | General test platform for low-voltage carrier automatic meter reading system | |
| CN102135619A (en) | Biosonar sounding device and method | |
| CN103954890A (en) | DC partial discharge detection device and method for converter transformer | |
| CN106249114A (en) | Multifunctional belt electric detection means based on WIFI transmission and method | |
| CN208872879U (en) | A kind of microseism data collection system | |
| CN104597373A (en) | Acoustic-magnetic synchronous cable fault fixed-point detector based on high-performance DSP | |
| RU2008150234A (en) | METHOD FOR DETERMINING PLACES OF DAMAGE TO ELECTRIC TRANSMISSION AND COMMUNICATION LINES AND DEVICE FOR ITS IMPLEMENTATION | |
| CN203981270U (en) | A kind of digital underwater noise measuring device | |
| CN109186752A (en) | Underwater sound signal acquisition, transmission and detection system based on graphics processor | |
| CN105203937B (en) | A kind of inside transformer discharge mode recognition methods and fault diagnosis system | |
| CN211979058U (en) | CAU performance test device | |
| CN206804881U (en) | digital hydrophone system | |
| CN109150238A (en) | Wireless audio integrated measurement system and method | |
| CN211453973U (en) | Natural source surface wave acquisition system based on virtual instrument | |
| CN103592686B (en) | A kind of marine seismic data acquisition test system | |
| CN105759256B (en) | A kind of underwater sound projector sends response time reversion and focuses on measuring method | |
| CN107064304A (en) | A kind of fruit structure the cannot-harm-detection device and method | |
| CN111308226A (en) | CAU performance test device | |
| CN206594317U (en) | Hydrophone sensitivity detector and its sound pressure signal collecting mechanism | |
| CN115561311A (en) | Low-frequency sound wave remote soil moisture content measuring system and method | |
| CN206095416U (en) | Multichannel hydrophone sensitivity detection device | |
| CN114877986A (en) | External damage prevention monitoring and early warning system based on distributed optical fiber vibration sensing technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20170804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |