CN206192953U - High low frequency sound in vacuum learns measuring device - Google Patents
High low frequency sound in vacuum learns measuring device Download PDFInfo
- Publication number
- CN206192953U CN206192953U CN201621207824.7U CN201621207824U CN206192953U CN 206192953 U CN206192953 U CN 206192953U CN 201621207824 U CN201621207824 U CN 201621207824U CN 206192953 U CN206192953 U CN 206192953U
- Authority
- CN
- China
- Prior art keywords
- sample
- sound wave
- hydrophone
- vacuum
- frequency
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The embodiment of the utility model discloses high low frequency sound in vacuum learns measuring device, include: acoustics transmitting transducer, hydrophone group, the sonic apparatus, sound wave guide pillar and sample cell, acoustics transmitting transducer passes through the sound wave guide pillar and is connected on one side of the sample cell, sample face -to -face coupling in sound wave guide pillar and the sample cell connects, hydrophone group sets up in the sample cell top, and insert the measuring aperture and sample coupled linking at sample cell top, the first output and the acoustics transmitting transducer of sonic apparatus, the first receiving terminal and the hydrophone group link of sonic apparatus, the difficulty of laboratory measurement sample low frequency sound characteristic has been solved, simultaneously can develop the measurement from the low frequency to the high frequency, and the degree of accuracy of result when measuring has been guaranteed to the high low frequency sound of sample characteristic.
Description
Technical field
The utility model is related to acoustic sounding field, more particularly to a kind of vacuum low-and high-frequency acoustic measurement device.
Background technology
Wide rivers,lakes and seas seabed is covered with deposit, and the acoustic characteristic of deposit is the deposit that research is present in water
Most effectual way.By taking bottom sediment as an example, it is the important object of marine physics and engineering research, its Research of Acoustic
The attention of domestic and foreign scholars is enjoyed always, is ships navigation, submarine is moved under water, seabed resources are detected, ocean engineering operation etc. is necessary
The characteristic known and understand.Seabed sediment acoustics characteristic includes two main characterisitic parameters：Rate of sound and attenuation of sound, wherein,
The velocity of sound reflects the speed degree that sound wave is propagated in seabed；Acoustic attenuation reflects sediment to Acoustic Wave Propagation or ground seismic wave function
The influence of distance.
Acoustic measurement to deposit at present mainly has acoustic telemetry, in site measurement and sampled measurements.Due to the frequency for using
Rate section is inconsistent, and the acoustic characteristic that measurement is obtained has larger difference, and theoretical research shows, the velocity of sound of bottom sediment
All it is closely related with measurement frequency with acoustic attenuation, existing various measuring methods are only applicable to respective measurement frequency section, and
The measurement from low frequency (such as 10Hz) to the frequency high frequency (such as 500kHz) cannot be realized.And these three measuring methods mutually it
Between be irreplaceable, it is necessary to three kinds of being compared to each other for measuring method are connected.It is ocean engineering, navigation shipping, ocean
Military affairs, resource exploration etc. are serviced.
Therefore, research influence of the measurement frequency to the acoustic characteristic of bottom sediment is needed badly, so as to by various measuring methods
Measurement result can unite, mutually use for reference.Current in vitro measurement means, because low-frequency noise, sample chi
Very little the problems such as, it is impossible to realize a series of measurement from low to high.
Utility model content
The utility model embodiment discloses a kind of vacuum low-and high-frequency acoustic measurement device, solves laboratory measurement sample
The difficulty of frequency acoustic characteristic, while measurement from low to high can be carried out, and ensure that to sample low-and high-frequency acoustics
The degree of accuracy of result when characteristic is measured.
The utility model embodiment provides a kind of vacuum low-and high-frequency acoustic measurement device, including：
Acoustic emission transducer, hydrophone group, sonic apparatus, sound wave guide pillar and sample cell；
The acoustic emission transducer is connected by the sound wave guide pillar with the sample cell side；
Sample end face in the sound wave guide pillar and the sample cell is of coupled connections；
The hydrophone group is arranged at sample cell top, and inserts the measured hole at the top of sample cell and coupled with sample
Connection；
First output end of the sonic apparatus and the acoustic emission transducer, the first receiving terminal of the sonic apparatus and institute
State the connection of hydrophone group；
Wherein, test waves signal is converted into corresponding low-frequency sound wave or high frequency sound wave by the acoustic emission transducer, and
In injecting testing sample so that the low-frequency sound wave or high frequency sound wave are listened by generating the second sound wave, the water after testing sample
Each hydrophone in device group collects second sound wave and generates corresponding signal and send to sonic apparatus carries out acoustic characteristic solution
Analysis.
Preferably, a kind of vacuum low-and high-frequency acoustic measurement device provided in an embodiment of the present invention also includes：Level is received and changed
Can device；
Described horizontal receive transducer one end is of coupled connections with the sample other end in the sample cell；
The first receiving terminal connection of the horizontal receive transducer other end and the sonic apparatus.
Preferably, a kind of vacuum low-and high-frequency acoustic measurement device provided in an embodiment of the present invention also includes：Vacuum tank；
The hydrophone group, the sample cell, the level receive transducer and the sound wave guide pillar may be contained within it is described
In vacuum tank；
The hydrophone sampling end of the hydrophone group is connected with the sample Radial Coupling in the sample cell.
Preferably, a kind of vacuum low-and high-frequency acoustic measurement device provided in an embodiment of the present invention also includes：Vacuum suction valve
And vavuum pump；
The vacuum suction valve is connected with the vavuum pump；
The vacuum suction valve is arranged on the vacuum tank side.
Preferably, a kind of vacuum low-and high-frequency acoustic measurement device provided in an embodiment of the present invention also includes：Main frame；
Second receiving terminal and the second output end connection of the main frame and the sonic apparatus.
Preferably, the sonic apparatus, for secondary signal to be amplified into treatment, and generates the 3rd signal and sends to described
Main frame, the main frame is parsed according to the 3rd signal and is calculated the acoustic characteristic of sample.
Preferably, the hydrophone group includes pin type hydrophone group and plane hydrophone；
The pin type hydrophone group includes at least 2 pin type hydrophones, and the pin type hydrophone is separated by preset distance two-by-two；
The plane hydrophone is horizontally disposed.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model embodiment provides a kind of vacuum low-and high-frequency acoustic measurement device, including：Acoustic emission transducer,
Hydrophone group, sonic apparatus, sound wave guide pillar and sample cell；The acoustic emission transducer passes through the sound wave guide pillar and the sample
Pipe side connects；Sample end face in the sound wave guide pillar and the sample cell is of coupled connections；The hydrophone group is arranged at institute
Sample cell top is stated, and inserts the measured hole at the top of sample cell and be of coupled connections with sample；First output end of the sonic apparatus
With the acoustic emission transducer, the first receiving terminal of the sonic apparatus is connected with the hydrophone group；Wherein, the acoustics hair
Penetrate transducer and test waves signal is converted into corresponding low-frequency sound wave or high frequency sound wave, and inject testing sample so that be described
Low-frequency sound wave or high frequency sound wave are collected by generating the second sound wave, each hydrophone in the hydrophone group after testing sample
Second sound wave simultaneously generates corresponding signal and sends to sonic apparatus and carry out acoustic characteristic parsing, solves laboratory measurement sample low
The difficulty of frequency acoustic characteristic, while measurement from low to high can be carried out, and ensure that special to sample low-and high-frequency acoustics
The degree of accuracy of result when property is measured.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation of vacuum low-and high-frequency acoustic measurement device that Fig. 1 is provided for the utility model embodiment.
Wherein, marked in figure as described below：
1. the level of 2. sound wave guide pillar of acoustic emission transducer, 3. sample cell 4. receives the sound of 5. hydrophone group of transducer 6.
The vacuum tank of 9. vavuum pump of ripple instrument 7. main frame, 8. vacuum suction valve 10.
Specific embodiment
The utility model embodiment discloses a kind of vacuum low-and high-frequency acoustic measurement device, solves laboratory measurement sample
The difficulty of frequency acoustic characteristic, while measurement from low to high can be carried out, and ensure that to sample low-and high-frequency acoustics
The degree of accuracy of result when characteristic is measured.
Refer to Fig. 1, a kind of vacuum low-and high-frequency acoustic measurement device that the utility model embodiment is provided, including：
Acoustic emission transducer 1, hydrophone group 5, sonic apparatus 6, sound wave guide pillar 2 and sample cell 3；
Acoustic emission transducer 1 is connected by sound wave guide pillar 2 with the side of sample cell 3；
Sample end face in sound wave guide pillar 2 and sample cell 3 is of coupled connections；
Hydrophone group 5 is arranged at the top of sample cell 3, and the measured hole inserted at the top of sample cell 3 is of coupled connections with sample；
First output end of sonic apparatus 6 and acoustic emission transducer 1, the first receiving terminal and the hydrophone group 5 of sonic apparatus 6 connect
Connect.
Wherein, test waves signal is converted into corresponding low-frequency sound wave or high frequency sound wave by acoustic emission transducer 1, and is injected
In testing sample so that low-frequency sound wave or high frequency sound wave by generating the second sound wave after testing sample, each in hydrophone group 5
Hydrophone collects the second sound wave and generates corresponding signal and send to sonic apparatus 6 carries out acoustic characteristic parsing.
In the present embodiment, acoustic emission transducer 1 is based on the electric signal of sonic apparatus 6, and generation is suitable for the low frequency of measurement
With the sound wave of high frequency, in low frequency, (such as below 20kHZ) is magnetostrictive transducer, produces low frequency triggering sound wave；In medium, high frequency
When (such as more than 20kHZ), be piezoelectric ceramic transducer.
Sonic apparatus 6 is used to for the test signal of main frame 7 to be converted into electric signal triggering acoustic emission transducer 1, while by water
The vibration of device group 5 is listened to be converted into electric signal transmission to main frame 7.
A kind of vacuum low-and high-frequency acoustic measurement device that the utility model embodiment is provided also includes：Horizontal receive transducer
4；
The one end of horizontal receive transducer 4 is of coupled connections with the sample other end in sample cell 3；
The first receiving terminal connection of the other end of horizontal receive transducer 4 and sonic apparatus 6.
In the present embodiment, level receives transducer 4 for receiving the acoustic vibration of sample propagation and picking up entrance
To in sonic apparatus 6, for comparing the signal that hydrophone group 5 is received, can be used for correction, contrast and the analysis of whole experiment.
A kind of vacuum low-and high-frequency acoustic measurement device that the utility model embodiment is provided, also includes：Vacuum tank 10；
The one end of sound wave guide pillar 2 is connected by couplant with acoustic emission transducer 1, in other end and vacuum tank 10
The face of sample cell 3 is connected by couplant, and the sound wave conduction for acoustic emission transducer is entered into measurement sample；
Hydrophone group 5, sample cell 3, level receive the harmony waveguide post 2 of transducer 4 and may be contained within 10 in vacuum tank.
A kind of vacuum low-and high-frequency acoustic measurement device that the utility model embodiment is provided, also includes：The He of vacuum suction valve 8
Vavuum pump 9；
Vacuum suction valve 8 is connected with vavuum pump 9；
Vacuum suction valve 8 is arranged on the side of vacuum tank 10.
In the present embodiment, vavuum pump 9 suctions out the air of vacuum tank 10, and gas pressure reaches -0.1 atmospheric pressure,
Isolation sound wave passes through air borne, it is ensured that sound wave spreads into hydrophone from sample.
A kind of vacuum low-and high-frequency acoustic measurement device that the utility model embodiment is provided, also includes：Main frame 7, main frame 7 is wrapped
The memory and display for storing each signal are included, is selected as sonic apparatus operational control, parameter setting and the first signal
The interactive display interface selected, is parsed and is calculated the processor of the acoustic characteristic of deposit for the docking collection of letters number；
Second receiving terminal and the second output end connection of main frame 7 and sonic apparatus 6.
The water of the hydrophone group 5 that a kind of vacuum low-and high-frequency acoustic measurement device that the utility model embodiment is provided is included
Device sampling end is listened to be of coupled connections with the sample Radial Coupling of sample cell 3, hydrophone group includes at least one hydrophone.
In the present embodiment, hydrophone group includes pin type hydrophone group and plane hydrophone；
Pin type hydrophone group includes at least 2 pin type hydrophones, and two two-hand hydrophones are separated by preset distance；
Plane hydrophone is horizontally disposed.
In the present embodiment, hydrophone group 5 can receive the sound wave of the frequency range of 10Hz~500kHz, with stable
Frequency response characteristic, can receive the signal that various researchs need.Hydrophone group is vertically arranged on the prop,
The sampling end of each hydrophone is coupled with sample cell 3 by couplant in group, the sampling end of each hydrophone in hydrophone group 5
It is inserted in the longitudinal end of sample cell 3 and is vertically arranged on measurement support.Wherein, in the hydrophone group comprise at least two into
Certain distance interval, the hydrophone being arranged side by side, and hydrophone are pin type hydrophone, and hydrophone separates cloth according to certain distance
Put, sample is contacted vertically, the acoustic vibration pickup that sample is propagated is entered into sonic apparatus.
In the present embodiment, the carrying of the test waves type generation of the basis that 6 Receiving Host of sonic apparatus 7 sends currently input
There is the first signal of test waves type, and according to the corresponding electric signal triggering acoustic emission transducer 1 of first signal generation,
Test waveform signal is converted into corresponding low-frequency sound wave or during high frequency sound wave spreads into vacuum tank 10 by acoustic emission transducer 1
Testing sample in.
The rising tone that each hydrophone collection low-frequency sound wave or high frequency sound wave in hydrophone group 5 pass through formation after sample
Ripple, and generate corresponding secondary signal and send to sonic apparatus 6, secondary signal is amplified treatment by sonic apparatus 6, and generates the 3rd
Signal is sent to main frame 7, and main frame 7 is based on the 3rd signal of testing sample generation, and the acoustics for being parsed and being calculated deposit is special
Property.
A kind of vacuum low-and high-frequency acoustic measurement device provided by the utility model is described in detail above, for
Those of ordinary skill in the art, the thought of foundation the utility model embodiment, in specific embodiments and applications
Will change, in sum, this specification content should not be construed as to limitation of the present utility model.
Claims (7)
1. a kind of vacuum low-and high-frequency acoustic measurement device, it is characterised in that including：Acoustic emission transducer, hydrophone group, sound wave
Instrument, sound wave guide pillar and sample cell；
The acoustic emission transducer is connected by the sound wave guide pillar with the sample cell side；
Sample end face in the sound wave guide pillar and the sample cell is of coupled connections；
The hydrophone group is arranged at sample cell top, and inserts the measured hole at the top of sample cell company is coupled with sample
Connect；
First output end of the sonic apparatus and the acoustic emission transducer, the first receiving terminal and the water of the sonic apparatus
Device group is listened to connect；
Wherein, test waves signal is converted into corresponding low-frequency sound wave or high frequency sound wave by the acoustic emission transducer, and is injected
In testing sample so that the low-frequency sound wave or high frequency sound wave are by generating the second sound wave, the hydrophone group after testing sample
In each hydrophone collect second sound wave and generate corresponding signal and send to sonic apparatus and carry out acoustic characteristic parsing.
2. vacuum low-and high-frequency acoustic measurement device according to claim 1, it is characterised in that also include：Level is received and changed
Can device；
Described horizontal receive transducer one end is of coupled connections with the sample other end in the sample cell；
The first receiving terminal connection of the horizontal receive transducer other end and the sonic apparatus.
3. vacuum low-and high-frequency acoustic measurement device according to claim 2, it is characterised in that also include：Vacuum tank；
The hydrophone group, the sample cell, the level receive transducer and the sound wave guide pillar may be contained within the vacuum
In case；
The hydrophone sampling end of the hydrophone group is connected with the sample Radial Coupling in the sample cell.
4. vacuum low-and high-frequency acoustic measurement device according to claim 3, it is characterised in that also include：Vacuum suction valve
And vavuum pump；
The vacuum suction valve is connected with the vavuum pump；
The vacuum suction valve is arranged on the vacuum tank side.
5. vacuum low-and high-frequency acoustic measurement device according to claim 4, it is characterised in that also include：Main frame；
Second receiving terminal and the second output end connection of the main frame and the sonic apparatus.
6. vacuum low-and high-frequency acoustic measurement device according to claim 5, it is characterised in that the sonic apparatus, for will
Secondary signal is amplified treatment, and the 3rd signal of generation is sent to the main frame, and the main frame enters according to the 3rd signal
Row is parsed and calculates the acoustic characteristic of sample.
7. vacuum low-and high-frequency acoustic measurement device according to claim 6, it is characterised in that the hydrophone group includes pin
Formula hydrophone group and plane hydrophone；
The pin type hydrophone group includes at least 2 pin type hydrophones, and the pin type hydrophone is separated by preset distance two-by-two；
The plane hydrophone is horizontally disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207824.7U CN206192953U (en) | 2016-11-09 | 2016-11-09 | High low frequency sound in vacuum learns measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207824.7U CN206192953U (en) | 2016-11-09 | 2016-11-09 | High low frequency sound in vacuum learns measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192953U true CN206192953U (en) | 2017-05-24 |
Family
ID=58733754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621207824.7U Expired - Fee Related CN206192953U (en) | 2016-11-09 | 2016-11-09 | High low frequency sound in vacuum learns measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290580A (en) * | 2016-11-09 | 2017-01-04 | 广东工业大学 | A kind of vacuum low-and high-frequency acoustic measurement device and method |
-
2016
- 2016-11-09 CN CN201621207824.7U patent/CN206192953U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290580A (en) * | 2016-11-09 | 2017-01-04 | 广东工业大学 | A kind of vacuum low-and high-frequency acoustic measurement device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106290580A (en) | A kind of vacuum low-and high-frequency acoustic measurement device and method | |
| WO2019237893A1 (en) | In-situ long-term observation apparatus and method for deep-sea base engineering geological environment | |
| CN106018550B (en) | A kind of acoustic characteristic measuring device and method | |
| CN111812711B (en) | Hydrate stratum seismic physical simulation test equipment based on reflection wave field | |
| CN107356666A (en) | A kind of extraction method and system of halmeic deposit parameters,acoustic | |
| CN101975820A (en) | Submarine sediment acoustic parameter in-situ measuring device | |
| CN110160622A (en) | A kind of travelling-wave tubes hydrophone sensitivity consistency on-line calibration method | |
| CN107228903A (en) | A kind of hydrophone linear array detected for concrete dam and preparation method thereof | |
| CN103591975A (en) | Ultrasonic wave sensor index detection method and device | |
| CN103604728B (en) | Based on the sand grain droplet measurement device and method of stream solid Interface Wave | |
| CN115839998A (en) | System and device for testing sound velocity of submarine sediment sample based on broadband transducer | |
| CN206192953U (en) | High low frequency sound in vacuum learns measuring device | |
| CN106769734B (en) | A kind of focusing ultrasonic wave formula river load concentration On-line Measuring Method | |
| Eseller-Bayat et al. | Bender elements and bending disks for measurement of shear and compression wave velocities in large fully and partially saturated sand specimens | |
| LIU et al. | Seismometer-detached broadband ocean bottom seismograph (OBS): Development, test, and data quality analysis | |
| CN206057253U (en) | A kind of acoustic characteristic measurement apparatus | |
| CN206990812U (en) | A kind of detecting system of U-shaped groundwater supply line clogging failure | |
| CN206756749U (en) | The data acquisition device of bottom sediment original position acoustic measurement system | |
| CN106441142A (en) | Depth detection device and method for realizing depth measurement of submarine sediment | |
| CN105759307A (en) | Great earthquake inoculation process based on earthquake sound detection method and impending earthquake monitoring probe | |
| CN109406357B (en) | Detection system and detection method applied to dynamic attenuation characteristics of dust cloud cluster | |
| CN204754918U (en) | Pore -forming grooving detection device | |
| CN216899220U (en) | Noise measurement system with high signal-to-noise ratio and high sensitivity | |
| CN109186735A (en) | The measurement method of structural radiation acoustical power insertion loss based on vector hydrophone | |
| CN206387693U (en) | A kind of focusing distribution of sediment on-line measurement instrument of frequency sweep type ultrasonic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20211109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |