CN109307707A - The passive sound fusion detection method of storage tank bottom plate distributed wireless master - Google Patents
The passive sound fusion detection method of storage tank bottom plate distributed wireless master Download PDFInfo
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- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a kind of passive sound fusion detection methods of storage tank bottom plate distributed wireless master, the detection method passes through a certain number of sonic sensors uniformly distributed at bottom edge board, excite Active Acoustic field wave, active acoustically-driven modulated signal and passive acoustic emission signal are acquired simultaneously, frequency domain and the processing of time-domain information convergence analysis can be completed, the image of storage tank bottom plate defect distribution, size and corrosion active degree (activity) is formed.The present invention changes the point-by-point detection pattern of sensor of conventional ultrasound guided wave technology, using the active acoustically-driven detection method of the fixed sensor array of tank bottom, change acoustical signal incentive mode and defect modulated signal extracting mode, improves detection coverage area, obtain defective locations and size；It merges passive acoustic emission detection method to detect storage tank bottom plate active corrosion, detection efficiency will be greatly improved, while evaluation result is more comprehensively intuitive and reliable.The present invention is using wireless communication module transmission detection data, it can be achieved that long-range monitoring.
Description
Technical field
The invention belongs to storage tank detection technique fields, are related to a kind of passive sound fusion detection of storage tank bottom plate distributed wireless master
Method.
Background technique
Supersonic guide-wave and sound emission can be achieved on the technology for the storage tank bottom plate on-line checking that not can opening does not stop production.Wherein:
Supersonic guide-wave is active audio technology, and test macro shows as sensor being placed on the bottom edge board polished,
Under the control of guided wave transceiver, sensor actively issues pulse signal and excites Lamb wave into tank bottom, when Lamb wave encounters
When defect, echo is formed, can relatively accurately calculate the position of defect by analyzing echo-signal.So by sensor edge
Bottom edge board run one week, detected point by point, obtain the detection data of multiple directions, number is finally completed by computer again
According to Macro or mass analysis, formed tank bottom defect distribution image, the established corrosion damage of bottom plate can be characterized.
Sound emission is passive audio technology, and test macro shows as uniformly distributed a certain number of sensings at the nearly bottom plate of storage tank outer wall
Device be connected on Acoustic radiating instrument by coaxial cable by interesting to listen to sound, handled data by host computer, receive sound by each sensor
Emit the time difference comprehensive estimate sound source position of signal, understands the corrosion condition in each region of tank bottom, the corrosion of qualitative evaluation bottom plate
Activated state.
As it can be seen that supersonic guide-wave and acoustic emission system can be by detecting storage tank bottom plate in bottom placement sensor.
Ultrasonic guided wave detecting is corrosion default that storage tank bottom plate has been formed, it is therefore intended that detects that bottom plate has formed corrosion default portion
Position；The active degree of corrosion location is occurring for acoustic emission detection storage tank bottom plate, it is therefore intended that finds out corrosion and is occurring
Position qualitative evaluation activity.The emphasis of two kinds of detection techniques is different with obtained result, but final purpose is clearly to store up
The state safety work of tank.The position for having formed defect is not necessarily being corroded, and corrodes active position not necessarily
Residual thickness is small.
Since supersonic guide-wave system in the prior art can only detect the position that tank bottom has corrosion default, can't obtain
The size of defect, and acoustic emission system is only capable of detection bottom corrosion activity, in utilization supersonic guide-wave and acoustic emission system to storage tank
Bottom plate carries out being likely to occur the incomplete problem of evaluation result when on-line checking.
Further, since supersonic guide-wave technology needs along bottom edge board to run sensor one week, detected point by point,
Therefore supersonic guide-wave technology have monitoring efficiency it is low, because of the limitations such as acoustic attenuation detection coverage area is smaller.
Summary of the invention
It is an object of the invention to propose a kind of passive sound fusion detection method of storage tank bottom plate distributed wireless master, to improve
The detection coverage area and detection efficiency of detection method, while making evaluation result more comprehensively intuitive and reliable.
To achieve the goals above, the present invention adopts the following technical scheme:
The passive sound fusion detection method of storage tank bottom plate distributed wireless master, the main quilt of storage tank bottom plate distributed wireless used
Dynamic sound fusion detection system includes sonic sensor, capture card and host computer；
Capture card is used to receive the data of sonic sensor, is handled the data and is wirelessly transmitted to host computer；
The sonic sensor has multiple；
Active Acoustic excitation module, data acquisition module, central processing unit and wireless communication module are integrated on capture card；
Wherein:
Active Acoustic excitation module and data acquisition module are connect with central processing unit respectively；
Central processing unit is connect with wireless communication module；
It is equipped with radio network gateway between wireless communication module and host computer and is connected by the radio network gateway；
The passive sound fusion detection method of storage tank bottom plate distributed wireless master includes the following steps:
S1, installation process
The sensor array being made of multiple sonic sensors is arranged on the bottom edge board outside storage tank first；
S2, detection process
S2.1, first host computer issue acquisition instructions, and wireless communication module, which receives, to be instructed and pass to central processing unit；
Central processing unit issues firing command to Active Acoustic excitation module, by Active Acoustic excitation module excitation sound wave sensing
Device generates Active Acoustic field wave in tank bottom；
S2.2, Active Acoustic the field wave trigger sensor after the modulation of tank bottom defect obtain active acoustically-driven modulated signal, by
Bottom corrosion active defects issue passive acoustic emission wave trigger sensor and obtain passive acoustic emission signal；
Active acoustically-driven modulated signal and passive acoustic emission signal are received by sonic sensor；
Active acoustically-driven modulated signal and passive acoustic emission signal are sent to data acquisition module by s2.3, sonic sensor
Block；
Collected signal progress digitized processing is then forwarded to central processing unit by s2.4, data acquisition module；
S2.5, central processing unit handle received signal, obtain the tank bottom defect information data of storage tank, then
The defect information data are sent to host computer by wireless communication module；
S2.6, host computer are by carrying out demodulation process analysis to the defect information data received, to obtain bottom of storage tank
The defect distribution and corrosion area distribution is occurring that plate corrodes；
Host computer reads storage tank technological parameter simultaneously, realizes comprehensive analysis and evaluation to storage tank bottom plate etch state.
Preferably, it in the step s1, is fitted closely between sonic sensor and bottom edge board by couplant.
Preferably, in the step s1, each built-in capture card of sonic sensor difference.
Preferably, in the step s1, tank bottom of first polishing is needed before sensor array is arranged in bottom edge board
The position of margin plate arrangement sonic sensor.
Preferably, in the step s2.1, the frequency range of Active Acoustic field wave is 20kHz-500kHz.
Preferably, in the step s2.6, storage tank technological parameter is stored in storage tank industrial control system.
Preferably, the storage tank technological parameter includes liquid level and temperature parameter.
Preferably, in the step s2.6, host computer demodulates defect information data:
The position that defect is determined by Energy distribution of the demodulated signal in each detection node, not by detection wave signal
The basic size of regular propagation condition, waveform parameter and spectrum morphology identification defect.
Preferably, in the step s2.6, host computer carries out active acoustically-driven modulated signal and passive acoustic emission signal
The signal fused of frequency domain and time domain carries out image weight to the signal that each sonic sensor receives by chromatography imaging technique
It builds, obtains the defective locations and size of storage tank bottom plate corrosion, corruption is occurring by location algorithm, according to the acquisition of locating events number
Lose the distribution of zonal corrosion active degree.
The present invention has the advantage that
The present invention excites Active Acoustic field wave, together by a certain number of sonic sensors uniformly distributed at bottom edge board
When acquisition active acoustically-driven modulated signal and passive acoustic emission signal, complete frequency domain and the processing of time-domain information convergence analysis, formed
The image of storage tank bottom plate defect distribution and corrosion active degree (activity).The present invention changes the sensing of conventional ultrasound guided wave technology
The point-by-point detection pattern of device changes acoustical signal incentive mode using the active acoustically-driven detection method of the fixed sensor array of tank bottom
And defect modulated signal extracting mode, detection coverage area is improved, defective locations and size are obtained；Merge passive sound emission inspection
Survey method detects storage tank bottom plate active corrosion, will greatly improve detection efficiency, while evaluation result more comprehensively intuitively may be used
It leans on.In addition, the present invention transmits detection data, it can be achieved that long-range monitor, and can carry out long-term round-the-clock using wireless communication module
Monitoring.
Detailed description of the invention
Fig. 1 is the structural block diagram that the passive sound of storage tank bottom plate distributed wireless master merges detection system in the embodiment of the present invention 1；
Fig. 2 is the structural block diagram of radio network gateway in the embodiment of the present invention 1；
Fig. 3 is the arragement construction figure of sonic sensor in the embodiment of the present invention 1；
Fig. 4 is the top view of sonic sensor arragement construction in Fig. 3；
Fig. 5 is the flow diagram of the passive sound fusion detection method of storage tank bottom plate distributed wireless master in the embodiment of the present invention 4；
Fig. 6 is the defect distribution of storage tank bottom plate and corrosion active degree distribution map in the present invention；
Wherein: 1- sonic sensor, 2- capture card, 3- host computer, 4- Active Acoustic excitation module, 5- data acquisition module,
6- central processing unit, 7- storage tank industrial control system, 8- storage tank, 9- bottom edge board；
10- wireless communication module, 11- radio network gateway, 12- wireless communication module, 13-TCP/IP protocol conversion module.
Specific embodiment
With reference to the accompanying drawing and specific embodiment invention is further described in detail:
Embodiment 1
As shown in connection with fig. 1, the passive sound of storage tank bottom plate distributed wireless master merges detection system, including sonic sensor 1, adopts
Truck 2 and host computer 3.
Sonic sensor 1 in the present embodiment 1 has multiple, and each sonic sensor 1 is evenly arranged in the tank outside storage tank 8
In Bottom Edge Board 9, as shown in Figure 3 and Figure 4.Sonic sensor 1 has the function of reception and transmitting sound wave simultaneously.
By arrange above-mentioned sonic sensor can the defect situation to tank bottom carry out main passive acoustic wave detection.
Capture card 2 is used to receive the data of sonic sensor 1, is handled the data and is wirelessly transmitted to host computer 3.
Active Acoustic excitation module 4, data acquisition module 5, central processing unit 6 and wireless telecommunications are integrated on capture card 2
Module 10.Wherein, Active Acoustic excitation module 4 and data acquisition module 5 are connect with central processing unit 6 respectively.
Central processing unit 6 is connect with wireless communication module 10.
It is equipped with radio network gateway 11 between wireless communication module 10 and host computer 3 and is connected by the radio network gateway.
Due to the setting of above-mentioned wireless communication module 10 and radio network gateway 11, sensor 1 and acquisition channel are changed one by one
It is corresponding, eliminate a large amount of coaxial cables for needing to arrange between sonic sensor 1 and capture card 2, and eliminate capture card 2 with
The signal wire for needing to connect between host computer 3 is, it can be achieved that long-range monitor, and can carry out long-term round-the-clock monitoring.
As shown in Fig. 2, radio network gateway includes wireless communication module 12 and ICP/IP protocol conversion module 13, wherein wireless
Wireless telecommunications are established between communication module 12 and wireless communication module 10, ICP/IP protocol conversion module 13 is connected with host computer.
Active Acoustic excitation module 4 is configurable for excitation sonic sensor 1 and generates Active Acoustic field wave in tank bottom.It generates
Active Acoustic field wave include low-frequency sound wave and high frequency sound wave, specifically depending on the structure of storage tank and specification.
Sonic sensor 1 is configurable for receiving active acoustically-driven modulated signal and passive acoustic emission signal.Wherein:
Active acoustically-driven modulated signal is that Active Acoustic field wave triggering sonic sensor 1 after the modulation of tank bottom defect obtains
's；
Passive acoustic emission signal is that the passive acoustic emission wave trigger sensor 1 issued by bottom corrosion active defects obtains
's.
Data acquisition module 5 is configurable for acquisition via the received active acoustically-driven modulated signal of sonic sensor 1
With passive acoustic emission signal, central processing unit 6 is sent to after collected signal is then carried out digitized processing.
Central processing unit 6 is configurable for control Active Acoustic excitation module 4 and data acquisition module 5, carries out simultaneously
Signal processing analysis obtains defect information data, is then uploaded to corresponding defect information data by wireless communication module
Position machine.
Herein, central processing unit 6 is mainly worth basic filtering to the processing analysis of signal.
Wherein, defect information data can in host computer analysis processed, obtain position distribution, the size of defect with
And corrosion activity of defect etc..
Host computer 3 is configurable for demodulating received defect information data:
The position that defect is determined by Energy distribution of the demodulated signal in each detection node, not by detection wave signal
The basic size of regular propagation condition, waveform parameter and spectrum morphology identification defect.
Each detection node corresponds to the sonic sensor 1 arranged on the bottom edge board of storage tank.
Simultaneously host computer 3 be additionally configured to for acquisition active acoustically-driven modulated signal and passive acoustic emission signal into
The signal fused in line frequency domain and time domain carries out image weight to the signal that each sonic sensor receives by chromatography imaging technique
It builds, obtains the defective locations and size of storage tank bottom plate corrosion, corruption is occurring by location algorithm, according to the acquisition of locating events number
Lose the distribution of zonal corrosion active degree；
Wherein, the process of master's passive acoustic emission signal fusion is exactly carried out these signals at analysis according to time domain sequences
Reason, while to the process that frequency domain is analyzed, by believing the active acoustically-driven modulated signal of defect and passive sound emission
Number melt and to gather for one, so that all aggregate signals to the defect carry out qualitative and quantitative analysis, to obtain the activity of defect
And size.
Host computer 3 reads storage tank technological parameter simultaneously, realizes comprehensive analysis and evaluation to storage tank bottom plate etch state.
Storage tank technological parameter in the present embodiment 1 is stored in storage tank industrial control system 7, and host computer 3 is by way of reading
Storage tank technological parameter is obtained from storage tank industrial control system, storage tank technological parameter includes the parameters such as liquid level, temperature.
Preferably, it is fitted closely between sonic sensor 1 and bottom edge board by couplant, to improve detection effect.
For exemplary tank specification, the present embodiment 1 also separately designs different sizes, the sound wave sensing of different loop constructions
Device carries out the test of different frequency acoustic wave excitation, to select the good sonic sensor of detection effect and driving frequency.
Detection system in the present embodiment 1 has the advantage that compared with the prior art
1, sonic sensor 1 is evenly arranged on bottom edge board, carries out the hair and receipts of Active Acoustic pumping signal, while to passive
Acoustic emission signal is received, and is changed the point-by-point detection pattern of sensor of conventional ultrasound guided wave system, is improved detection efficiency.
2, preferably sensor parameters and Active Acoustic driving frequency, improve active acoustically-driven detection system coverage area.
3, the main passive sound of fusion forms tank floor inspection system, merges by frequency domain and the main passive acoustic signal of time domain,
Image reconstruction is carried out to the signal that sonic sensor each on bottom edge board receives by chromatography imaging technique, obtains storage tank
The defect distribution of Corrosion of base plate can obtain additionally by location algorithm and corrosion area distribution is occurring；
4. using wireless communication mode transmission detection data, it can be achieved that long-range monitor, and long-term round-the-clock monitoring can be carried out.
The present embodiment 1 can obtain position, size and the corrosion activity of storage tank bottom plate corrosion default, and evaluation result is more intuitive
Reliably.
Embodiment 2
The present embodiment 2 has addressed a kind of passive sound fusion detection system of storage tank bottom plate distributed wireless master, which removes
Except following technical characteristic and 1 difference of above-described embodiment, remaining technical characteristic can refer to above-described embodiment 1.
It, can be with using multiple narrowband excitation signals as field wave since sound wave modal number increases with the increase of frequency
Inhibit to reduce the complexity of monitoring by the multi-modal of field wave.Frequency range is 20kHz-500kHz, this model in the present embodiment 2
Excitation wave attenuation in enclosing is slower, and frequency range of the frequency range as Active Acoustic field wave may be selected.
Embodiment 3
The present embodiment 3 has addressed a kind of passive sound fusion detection system of storage tank bottom plate distributed wireless master, which removes
Except following technical characteristic and 1 difference of above-described embodiment, remaining technical characteristic can refer to above-described embodiment 1.
Each built-in capture card 2 of the difference of sonic sensor 1, so that each sonic sensor can be motivated and be received.
Embodiment 4
The present embodiment 4 has addressed a kind of passive sound fusion detection method of storage tank bottom plate distributed wireless master, and this method uses
Detection system the passive sound fusion detection system of storage tank bottom plate distributed wireless master in above-described embodiment 1,2 or 3 such as can be used.
As shown in figure 5, the passive sound fusion detection method of storage tank bottom plate distributed wireless master includes following step in the present embodiment 4
It is rapid:
One, installation process:
The sensor array being made of multiple sonic sensors 1 is arranged on the bottom edge board polished first, is led to
Overcoupling agent fits closely；
Two, detection process:
1. host computer issues acquisition instructions first, wireless communication module, which receives, to be instructed and passes to central processing unit, in
Central Processing Unit 6 issues firing command to Active Acoustic excitation module 4, excites sonic sensor 1 in tank by Active Acoustic excitation module 4
Bottom generates Active Acoustic field wave；
2. above-mentioned Active Acoustic field wave obtains active acoustically-driven modulated signal after the modulation of tank bottom defect, and by bottom corrosion
Active defects can be sent out passive acoustic emission signal, both signals are received by sonic sensor 1；
3. active acoustically-driven modulated signal and passive acoustic emission signal are sent to data acquisition module 5 by sonic sensor 1；
4. collected signal progress digitized processing is then forwarded to central processing unit 6 by data acquisition module 5；
5. central processing unit 6 handles received signal, the tank bottom defect information data of storage tank are obtained, then will
The defect information data are sent to host computer 3 by wireless communication module 10；
6. host computer 3 demodulates defect information data, pass through energy of the demodulated signal in each detection node point
Cloth determines the position of defect, and the basic size of defect is identified by detection wave signal irregular scattering situation；
Host computer 3 also carries out frequency domain and time domain to the active acoustically-driven modulated signal of acquisition and passive acoustic emission signal simultaneously
Signal fused, the signal received by chromatography imaging technique to each sonic sensor carries out image reconstruction, obtains storage tank
By location algorithm, according to the acquisition of locating events number corrosion area corrosion is occurring for the defective locations and size of Corrosion of base plate
Active degree distribution, as shown in Figure 6: where the grey cloud atlas of plane be exactly formed defect distribution grey histogram be corrosion
The distribution of active degree, the direction " X ", the direction " Y " are respectively two coordinate directions of horizontal plane locating for storage tank bottom plate, event number table
Show corrosion active degree, " N# " indicates the sensor that number is N, and the value of N is natural number.
Host computer 3 reads storage tank technological parameter simultaneously, realizes comprehensive analysis and evaluation to storage tank bottom plate etch state.
The present embodiment 4 passes through while acquiring active acoustically-driven modulated signal and passive acoustic emission signal, can complete frequency domain
It is handled with time-domain information convergence analysis, to form storage tank bottom plate defect distribution and corrode the image of active degree (activity).
The present invention, which efficiently solves supersonic guide-wave technology in the prior art, can only detect the existing corrosion default position of tank bottom, and
Acoustic emission system is only capable of detection tank bottom just in the activity of corrosion area, caused by on-line checking is carried out to storage tank bottom plate may go out
The point-by-point detection efficiency of the existing incomplete problem of evaluation result and supersonic guide-wave technology is low and acoustic attenuation detection range is small
Problem.It detection data is transmitted using wireless communication module, changes sensor and channel and corresponds, solve and be largely routed
Drawback.
Certainly, described above is only that presently preferred embodiments of the present invention is answered the present invention is not limited to enumerate above-described embodiment
When explanation, anyone skilled in the art is all equivalent substitutes for being made, bright under the introduction of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be by protection of the invention.
Claims (10)
1. the passive sound fusion detection method of storage tank bottom plate distributed wireless master, the storage tank bottom plate distributed wireless master used is passive
It includes sonic sensor, capture card and host computer that sound, which merges detection system,；It is characterized in that,
Capture card is used to receive the data of sonic sensor, is handled the data and is wirelessly transmitted to host computer；
The sonic sensor has multiple；
Active Acoustic excitation module, data acquisition module, central processing unit and wireless communication module are integrated on capture card；Its
In:
Active Acoustic excitation module and data acquisition module are connect with central processing unit respectively；
Central processing unit is connect with wireless communication module；
It is equipped with radio network gateway between wireless communication module and host computer and is connected by the radio network gateway；
The passive sound fusion detection method of storage tank bottom plate distributed wireless master includes the following steps:
S1, installation process
The sensor array being made of multiple sonic sensors is arranged on the bottom edge board outside storage tank first；
S2, detection process
S2.1, first host computer issue acquisition instructions, and wireless communication module, which receives, to be instructed and pass to central processing unit；
Central processing unit issues firing command to Active Acoustic excitation module, is existed by Active Acoustic excitation module excitation sonic sensor
Tank bottom generates Active Acoustic field wave；
S2.2, Active Acoustic the field wave trigger sensor after the modulation of tank bottom defect obtain active acoustically-driven modulated signal, by tank bottom
Corrosion activity defect issues passive acoustic emission wave trigger sensor and obtains passive acoustic emission signal；
Active acoustically-driven modulated signal and passive acoustic emission signal are received by sonic sensor；
Active acoustically-driven modulated signal and passive acoustic emission signal are sent to data acquisition module by s2.3, sonic sensor；
Collected signal progress digitized processing is then forwarded to central processing unit by s2.4, data acquisition module；
S2.5, central processing unit handle received signal, obtain the tank bottom defect information data of storage tank, then should
Defect information data are sent to host computer by wireless communication module；
S2.6, host computer are by carrying out demodulation process analysis to the defect information data received, to obtain storage tank bottom plate corruption
The defect distribution of erosion and occurring corrosion area distribution；
Host computer reads storage tank technological parameter simultaneously, realizes comprehensive analysis and evaluation to storage tank bottom plate etch state.
2. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 1, which is characterized in that institute
It states in step s1, is fitted closely between sonic sensor and bottom edge board by couplant.
3. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 1, which is characterized in that institute
It states in step s1, each built-in capture card of sonic sensor difference.
4. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 2, which is characterized in that institute
It states in step s1, each built-in capture card of sonic sensor difference.
5. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 1, which is characterized in that institute
It states in step s1, before sensor array is arranged in bottom edge board, the portion for bottom edge board placement sensor of first polishing
Position.
6. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 1, which is characterized in that institute
It states in step s2.1, the frequency range of Active Acoustic field wave is 20kHz-500kHz.
7. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 1, which is characterized in that institute
It states in step s2.6, storage tank technological parameter is stored in storage tank industrial control system.
8. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 1 or claim 7, feature exist
In the storage tank technological parameter includes liquid level and temperature parameter.
9. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 1, which is characterized in that institute
It states in step s2.6, host computer demodulates received defect information data:
The position that defect is determined by Energy distribution of the demodulated signal in each detection node, it is irregular by detection wave signal
The basic size of propagation condition, waveform parameter and spectrum morphology identification defect.
10. the passive sound fusion detection method of storage tank bottom plate distributed wireless master according to claim 9, which is characterized in that
In the step s2.6, host computer carries out the signal of frequency domain and time domain to active acoustically-driven modulated signal and passive acoustic emission signal
Fusion carries out image reconstruction to the signal that each sonic sensor receives by chromatography imaging technique, obtains storage tank bottom plate corruption
The defective locations and size of erosion are occurring corrosion area corrosion by location algorithm, according to the acquisition of locating events number and are enlivening journey
Degree distribution.
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| CN113051325A (en) * | 2021-03-25 | 2021-06-29 | 陕西延长石油（集团）有限责任公司 | Storage tank detection data display analysis method, system, medium, equipment and application |
| CN113695600A (en) * | 2021-08-11 | 2021-11-26 | 电子科技大学 | 3D prints intelligent bottom plate |
| CN113866820A (en) * | 2021-10-25 | 2021-12-31 | 辽宁工程技术大学 | Rockfall impact positioning method and device based on micro-seismic monitoring system |
| CN114965705A (en) * | 2022-04-29 | 2022-08-30 | 南通俊朗智能科技有限公司 | Temperature interference resistant ultrasonic detection method and system for corrosion of oil storage tank |
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| CN113866820A (en) * | 2021-10-25 | 2021-12-31 | 辽宁工程技术大学 | Rockfall impact positioning method and device based on micro-seismic monitoring system |
| CN113866820B (en) * | 2021-10-25 | 2024-03-26 | 辽宁工程技术大学 | Method and device for positioning falling rocks by impact based on microseismic monitoring system |
| CN114965705A (en) * | 2022-04-29 | 2022-08-30 | 南通俊朗智能科技有限公司 | Temperature interference resistant ultrasonic detection method and system for corrosion of oil storage tank |
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