CN109917019A - A kind of steel frame polyethylene compound pipe phased array imaging detection device and method - Google Patents
A kind of steel frame polyethylene compound pipe phased array imaging detection device and method Download PDFInfo
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- CN109917019A CN109917019A CN201910120512.4A CN201910120512A CN109917019A CN 109917019 A CN109917019 A CN 109917019A CN 201910120512 A CN201910120512 A CN 201910120512A CN 109917019 A CN109917019 A CN 109917019A
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Abstract
A kind of steel frame polyethylene compound pipe phased array imaging detection device and method, ultrasonic phase array detector and phased array linear array probe；Ultrasonic phase array detector includes computer, signal acquisition module and display module, and phased array linear array probe is connected with ultrasonic phase array detector；Computer is connected with phased array linear array probe, and phased array linear array probe is connected with signal acquisition module, and signal acquisition module is connected with computer, and computer is connected with display module；It sweeps channel and is switched fast in the detection process by the way that two lines are arranged to form two B and sweep image, then form new fusion B after computer disposal and sweep image, and retain related A and sweep signal.According to detection imaging results, the online Real-time Imaging to steel frame polyethylene compound pipe rapidly and efficiently is realized, and greatly improve check frequency problem from detection technique.At the same time it can also carry out the operation such as positioning analysis and data preservation to steel frame polyethylene compound pipe tube wall internal flaw.
Description
Technical field
The present invention relates to a kind of steel frame polyethylene compound pipe phased array imaging detection device and methods, can be directed to this kind
The pipeline tube body of labyrinth carries out ultrasonic phased array imaging detection, belongs to Ultrasonic Nondestructive technical field.
Background technique
Steel skeleton polyethylene plastic composite pipe is using mild steel wire as reinforced phase, with high density polyethylene (HDPE) (HDPE) for base
Body, by filling in synchronous progress with plastic extrusion to steel wire spot welding networking, the two-sided anti-corrosion of continuous extrusion in the production line
Pressure pipeline.Polyethylene is linked together by metal mesh opening, and pipe structure is similar to armored concrete.Both at home and abroad to no reinforcing bar
The PE pipe welding point ultrasound detection of frame and phased array ultrasonic detection technical research are relatively more, but only demonstrate PE tubing mostly
The feasibility of the ultrasonic phase array detection of material, electro-fusion welding or thermofussion welding welding point；And steel frame polyethylene compound pipe is engineering
Using the emerging product of pipeline, pipe structure is complicated in addition, and conventional lossless detection method is difficult to apply, not mature lossless inspection
Survey technology and technique.
Referring to fig. 2, steel frame polyethylene compound pipe 3 includes PE material 12, is provided with axial steel skeleton 11 in PE material 12,
Circumferential steel skeleton 10 is provided on the outside of axial steel skeleton 11.
Compared with common polythene tubing, the complex forming technology of steel frame polyethylene compound pipe, steel wire spot welding networking with
Plastic extrusion fills in synchronous progress, therefore the probability that mass defect occurs in tube body increases, so very it is necessary to carry out nothing to it
Damage detection；On the other hand, structure is complicated for steel frame polyethylene compound pipe, if using conventional ultrasonic phased array technology into
Row non-destructive testing, then axial and circumferential steel-wire carcass present in tube body can cause strong reflection to ultrasonic wave, and then be formed very big
Check frequency, as shown in Figure 3 and Figure 4, therefore cannot achieve non-destructive testing by conventional technical means.
Summary of the invention
To solve the above problems, the object of the present invention is to provide a kind of detections of steel frame polyethylene compound pipe phased array imaging
Device and method, this method is based on time-delay for phased array focus deflection technology and two angle fusion lines sweep imaging technique, for steel
Framework polyethylene multiple-unit tube carries out disposable ultrasonic fast imaging detection.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of steel frame polyethylene compound pipe phased array imaging detection device, including for multiple to steel skeleton polyethylene to be measured
Close ultrasonic phase array detector and phased array linear array probe that pipe is checked；The ultrasonic phase array detector includes meter
Calculation machine, signal acquisition module and display module, it is compound that the phased array linear array probe is placed in steel skeleton polyethylene to be measured
Tube outer surface, phased array linear array probe are connected with ultrasonic phase array detector；Computer and phased array linear array probe
Be connected, phased array linear array probe is connected with signal acquisition module, and signal acquisition module is connected with computer, computer with show
Show that module is connected；Wherein, the phased array linear array probe is one dimensional linear array probe, includes 64 chips.
A further improvement of the present invention lies in that chip frequency is 2MHz, wafer size 1mm × 8mm.
A further improvement of the present invention lies in that phased array linear array probe and steel frame polyethylene compound pipe to be measured are axial
Direction is parallel and extraction wire, the conducting wire of extraction are connected with ultrasonic phase array detector.
A further improvement of the present invention lies in that the phased array linear array probe is along steel frame polyethylene compound pipe to be measured
Outer surface, it is parallel with pipeline axial direction.
A further improvement of the present invention lies in that the ultrasonic phase array detector is by being arranged in computer (4)
FPGA carries out data acquisition using focusing rule, and it is effective to acquire extraction after data carry out signal processing by A/D converter
Signal is transmitted to display module after useful signal is then carried out image co-registration processing by pci bus.
A further improvement of the present invention lies in that the computer of the ultrasonic phase array detector is by phased linear probe
64 chip number consecutivelies are No. 1-64, are divided into one group with every 8 chips and successively carry out excitation ultrasound wave, when 1-8 chip is opened
After beginning excitation ultrasound wave, 2-9 chip is one group and is excited, and so on, it is axial along steel frame polyethylene compound pipe to be measured
Each group wafer cycles transmitting ultrasonic signal passes through control then under the premise of not moving phased array linear array probe on direction
Ultrasonic signal processed carries out the deflection and different depths of different angle on steel frame polyethylene compound pipe tube wall depth direction to be measured
The focusing of degree, switching A, which is swept, to be swept two kinds of lines with B and sweeps mode, finally, compound in steel skeleton polyethylene to be measured according to the ultrasonic signal
The flaw echoes generated when tube wall internal communication, formation B sweeps image after carrying out data processing, while being retained in different angles
A under degree sweeps wave mode signal；
The computer sweeps that the A formed under channel sweeps wave mode signal and after B sweeps image, calculating is being worked as receiving two lines
The additional space range of the covering detection zone under the premise of parameter is arranged in the first two channel；In overlay area twice, for same
Two amplitude signals on one spatial position are chosen larger amplitude signal and are responded as the sound pressure amplitude of the position；Finally, with this
Analogize to form new detection sound field and form new B after processing and sweep image, and judges the quality of steel frame polyethylene compound pipe.
A further improvement of the present invention lies in that the display module includes that 24 true colour display screen display screen, USB and Ethernet connect
Mouthful, display and output for testing result.
A kind of steel frame polyethylene compound pipe phased array imaging detection method, it is compound according to steel skeleton polyethylene to be measured first
Two lines that ultrasonic phase array detector is respectively set in pipe sweep the detection parameters in channel, and two of them channel is set as certain angle
Linear scanning mode, the contrary setting of angular deflection；Wherein, angle is no more than 20 °；
In steel frame polyethylene compound pipe road to be measured outer surface, detection faces, which are uniformly applied, spreads ultrasonic wave-coupled agent, by phased array
Probe placement on having applied the detection faces for wiping couplant, place along multiple tube axial direction by phased array linear array probe；
The B for opening ultrasonic phase array detector sweeps mode, detects skill by steel frame polyethylene compound pipe phased array imaging
Art forms the fusion B that two angle lines are swept and sweeps image checking as a result, sweeping image checking result according to B come to the poly- second of steel skeleton to be measured
Alkene multiple tube quality makes evaluation.
A further improvement of the present invention lies in that being formed by steel frame polyethylene compound pipe phased array imaging detection technique
The fusion B that two angle lines are swept sweeps image checking result, and detailed process is as follows:
64 chip number consecutivelies of phased linear probe are No. 1-64 by ultrasonic phase array detector, with every 8 crystalline substances
Piece is divided into one group and successively carries out excitation ultrasound wave, and after 1-8 chip starts excitation ultrasound wave, 2-9 chip is one group of progress
Excitation, and so on, each group wafer cycles emit ultrasonic signal along steel frame polyethylene compound pipe axial direction to be measured,
Under the premise of not moving phased array linear array probe, by control ultrasonic signal in steel frame polyethylene compound pipe pipe to be measured
The deflection of different angle and the focusing of different depth are carried out on wall depth direction, switching A, which is swept, to be swept two kinds of lines with B and sweeps mode, finally,
According to the flaw echoes that the ultrasonic signal is generated in steel frame polyethylene compound pipe tube wall internal communication to be measured, carry out
The A that B sweeps image, while being retained under different angle is formed after data processing sweeps wave mode signal；
Computer is swept wave mode signal and after B sweeps image, is calculated current two receiving two lines and sweep the A formed under channel
The additional space range of covering detection zone under the premise of a channel setting parameter；In overlay area twice, for same sky
Between two amplitude signals on position choose larger amplitude signal and responded as the sound pressure amplitude of the position；Finally, and so on
It forms new detection sound field and forms fusion B after processing and sweep image checking result.
Compared with prior art, surpass the invention has the benefit that being directed to existing steel frame polyethylene compound pipe
Sound detection difficult point and blind zone problem are swept the present invention provides a kind of two angle lines based on phased array detection technique and are fused into image space
Method.This method sweeps channel and is switched fast in the detection process by the way that two lines are arranged to form two B and sweep image, then by meter
New fusion B is formed after the processing of calculation machine and sweeps image, and is retained related A and swept signal.According to detection imaging results, may be implemented to steel
The online Real-time Imaging of framework polyethylene multiple-unit tube rapidly and efficiently, and greatly improve check frequency from detection technique and ask
Topic.At the same time it can also carry out the operation such as positioning analysis and data preservation to steel frame polyethylene compound pipe internal flaw.
Further, phased array linear array probe is along steel frame polyethylene compound pipe outer surface to be measured, with pipeline axial direction
Direction is parallel, it is ensured that acoustic beam scanning face is perpendicular to pipeline axial direction.
Further, switched in the present invention by both of which, can show in single angle scanning image and be hidden by steel skeleton
The shade position of gear, more fully display defect signal.
Detailed description of the invention
Fig. 1 is detection schematic diagram of the invention.
Fig. 2 is to detect tube body structural schematic diagram using the prior art.
Fig. 3 is the signal imitation figure using prior art detection tube body.
Fig. 4 is the actually detected result using prior art detection tube body.
Rule acoustic beam is focused when Fig. 5 is vertical incidence of the invention covers schematic diagram.
Rule acoustic beam is focused when Fig. 6 is oblique incidence of the invention covers schematic diagram.
Fig. 7 is test method flow chart of the invention.
Fig. 8 is ultrasonic phase array detector schematic block diagram of the invention.
In figure, 1 is ultrasonic phase array detector, and 2 be phased array linear array probe, and 3 is multiple for steel skeleton polyethylene to be measured
Pipe is closed, 4 be computer, and 5 be signal acquisition module, and 6 be display module, and 7 be FPGA, and 8 be A/D converter, and 9 be pci bus, 10
It is axial steel skeleton for circumferential steel skeleton, 11,12 be PE material.
Specific embodiment
The technical solution in the present invention will be clearly and completely described below, it is clear that described embodiment is only
A part of the embodiments of the present invention, for those of ordinary skill in the art, institute without creative efforts
Other all embodiments obtained, shall fall within the protection scope of the present invention.Ultrasonic phase array detector, steel skeleton polyethylene to be measured
Composite pipe structure is existing.
Referring to Fig. 1 and Fig. 7, a kind of steel frame polyethylene compound pipe phased array imaging detection device, it is main include for pair
The ultrasonic phase array detector 1 and phased array linear array probe 2 that steel frame polyethylene compound pipe to be measured is checked, the phase
It controls linear array probe 2 and is placed in 3 outer surface of steel frame polyethylene compound pipe to be measured, with steel frame polyethylene compound pipe to be measured
3 axial directions are parallel and extraction wire, the conducting wire of extraction are connected with ultrasonic phase array detector 1.Referring to Fig. 8, the ultrasound phase
Controlling battle array detector 1 includes computer 4, signal acquisition module 5 and display module 6, and the computer 4 is visited with phased array linear array
First 2 are connected, and phased array linear array probe 2 is connected with signal acquisition module 5, and signal acquisition module 5 is connected with computer 4, meter
Calculation machine 4 is connected with display module 6.
The phased array linear array probe 2 is one dimensional linear array probe, includes 64 chips, and chip frequency is 2MHz,
Wafer size 1mm × 8mm.
The phased array linear array probe 2 is along 3 outer surface of steel frame polyethylene compound pipe to be measured, with pipeline axial direction
In parallel, it is ensured that acoustic beam scanning face is perpendicular to pipeline axial direction.I.e. probe is placed along multiple tube axial direction, it is ensured that acoustic beam scanning
Face is perpendicular to multiple tube axial direction.
The steel frame polyethylene compound pipe to be measured 3 is using mild steel wire as reinforced phase, with high density polyethylene (HDPE) (HDPE)
For matrix, by filling in synchronous progress with plastic extrusion to steel wire spot welding networking, continuous extrusion is two-sided in the production line
Anti-corrosion pressure pipeline.
The display module 6 includes 24 true colour display screen display screen, USB and Ethernet interface, the display for testing result
And output.
The ultrasonic phase array detector 1 is the phased array detector with 32/64 receiving channels of transmitting.It can set respectively
The detection technique parameter for setting different angle and the depth of focus, for the steel skeleton construction feature of the multiple tube, by two channels
It is set as the linear scanning mode of certain angle, angular deflection direction should be reversed.
The computer 4 of the ultrasonic phase array detector 1 is by focusing rule, by 64 crystalline substances of phased linear probe 2
Piece number consecutively is No. 1-64, is divided into one group with every 8 chips and successively carries out excitation ultrasound wave, when 1-8 chip starts to excite
After ultrasonic wave, 2-9 chip be one group excited, and so on along 3 axial direction of steel frame polyethylene compound pipe to be measured
Each group wafer cycles emit ultrasonic signal, then under the premise of not needing mobile phased array linear array probe 2, pass through control
Ultrasonic signal carries out deflection and the different depth of different angle on 3 tube wall depth direction of steel frame polyethylene compound pipe to be measured
Focusing, to reach the testing goal for carrying out linear scanning at a certain angle.Finally, according to the ultrasonic signal in the steel to be measured
The flaw echoes generated when 3 tube wall internal communication of framework polyethylene multiple-unit tube, formation B sweeps image after carrying out data processing,
The A under different angle, which sweeps signal, simultaneously should also retain.
1 function of ultrasonic phase array detector includes two mutually independent linear scanning parameter setting channels.Its function
There are two the linear scannings of independent-angle for energy.The detection technique parameter of different angle and the depth of focus can be respectively set, for
The steel skeleton construction feature of the multiple tube sets two channels to the linear scanning mode of a certain angle, angular deflection side
To should be reversed.
The signal acquisition module 5 carries out under the premise of phased array linear array probe 2 does not move during scanning
Two kinds of lines sweep being switched fast back and forth for mode, retain and are formed by that B sweeps image and corresponding A sweeps wave under two linear scanning channels
Type signal.
The computer 4 sweeps wave mode signal and after B sweeps image, calculates and exist receiving two lines and sweep the A formed under channel
The additional space range of covering detection zone under the premise of parameter is arranged in the first two channel.In overlay area twice, for
Two amplitude signals on the same space position are chosen larger amplitude signal and are responded as the sound pressure amplitude of the position.Finally, with
This, which analogizes to form new detection sound field and form new B afterwards after further treatment, sweeps image, is shown in instrument as testing result
On display module.The result can show the shade position blocked in single angle scanning image by steel skeleton, more fully show
Flaw indication.The feature of flaw indication and steel skeleton signal is evaluated, and judges the quality of steel frame polyethylene compound pipe 3.
Referring to Fig. 7, ultrasonic phase array detector 1 is mainly used by the FPGA 7 being arranged in computer 4 and focuses rule
Data acquisition is carried out, and extracts useful signal after sampled data is carried out signal processing by A/D converter 8, it then will be effective
Signal is transmitted to display module 6 after carrying out image co-registration processing by pci bus 9.
Specifically, the test method based on above-mentioned apparatus is as follows:
Prepare steel skeleton polyethylene (PE) compound pipeline complex pipeline 3 to be measured and the one-dimensional linear array phased array probe 2.
The debugging of ultrasonic phase array detector: two lines have been respectively set according to steel frame polyethylene compound pipe 3 to be measured first
The detection parameters in channel are swept, two of them channel is set as the linear scanning mode of certain angle, and angular deflection direction should be opposite
Setting.It should be noted that certain angle is not to be exceeded 20 °.
It is uniformly applied in 3 outer surface detection faces of steel frame polyethylene compound pipe road to be measured and spreads ultrasonic wave-coupled agent, it will be one-dimensional
Linear array phased array probe 2, which is placed on, have been applied in the detection faces for wiping couplant, keeps its coupling good by pressing probe, really
Protect One-dimension Phased Array linear array probe 2 along multiple tube axial direction place, linear acoustic beam scanning face perpendicular to it is tubular axle combined to
Direction.
The B for opening ultrasonic phase array detector 1 sweeps mode, detects skill by steel frame polyethylene compound pipe phased array imaging
Art forms the fusion B that two angle lines are swept and sweeps image checking as a result, being shown on the display module, and retains related A and sweep letter
Number.
Image checking result, which is swept, according to B makes evaluation to treat test tube weight.
Referring to figs. 5 and 6, the present invention provides a kind of multi-angle lines based on phased array detection technique to sweep fusion of imaging skill
Art.The technology sweeps channel by the way that multiple lines are arranged and is switched fast in the detection process to form multiple B and sweep image, then by meter
New fusion B is formed after the processing of calculation machine and sweeps image, and is retained related A and swept signal to be detected.First with ultrasonic phase array
Detector line sweeps detection technique and recycles transmitting ultrasonic signal on multiple tube axial direction, this kind of scanning mode can not need
Under the premise of mobile probe, control ultrasonic signal carries out the deflection and difference of different angle on compound tube wall depth direction
The focusing of depth, to reach the testing goal for carrying out linear scanning at a certain angle.Finally, according to the ultrasonic signal it is described to
The flaw echoes generated when surveying compound tube wall internal communication, formation B sweeps image after carrying out data processing, while in difference
A under angle, which sweeps signal, should also retain.
Signal acquisition module 5 carries out three kinds of lines under the premise of probe does not move and sweeps mode back and forth during scanning
It is switched fast, retains and be formed by that B sweeps image and corresponding A sweeps wave mode signal under three linear scanning channels.Ultrasonic phase array
Mainly focusings rule progress data acquisition is arranged by FPGA7 in detector 1, and by sampled data pass through A/D converter 8 into
Useful signal is extracted after row signal processing, it is then that useful signal is aobvious by being transmitted to after the progress image co-registration processing of pci bus 9
Show module 6, as shown in Figure 7.
Secondly it should be set comprising three mutually independent linear scanning parameters for the focusing rule of connector to be measured in the present invention
Set channel.The detection technique parameter of different angle and the depth of focus can be respectively set, examined for the composite tube welding connector
It surveys and requires, set 0 ° of vertical line for one of them linear scanning channel and sweep, as shown in figure 5, other two channel is set as one
Determine the linear scanning mode of angle, angular deflection direction should be reversed, wherein certain angle is not to be exceeded 20 °, such as Fig. 6 institute
Show.
Claims (9)
1. a kind of steel frame polyethylene compound pipe phased array imaging detection device, which is characterized in that including for reinforcing bar to be measured
The ultrasonic phase array detector (1) and phased array linear array probe (2) that frame polyethylene compound pipe (3) is checked；It is described super
Sound phased array detector (1) includes computer (4), signal acquisition module (5) and display module (6), the phased linear battle array
Column probe (2) is placed in steel frame polyethylene compound pipe to be measured (3) outer surface, phased array linear array probe (2) and ultrasonic phase
Battle array detector (1) is controlled to be connected；Computer (4) is connected with phased array linear array probe (2), phased array linear array probe (2)
It is connected with signal acquisition module (5), signal acquisition module (5) is connected with computer (4), computer (4) and display module (6) phase
Even；Wherein, the phased array linear array probe (2) is one dimensional linear array probe, includes 64 chips.
2. a kind of steel frame polyethylene compound pipe phased array imaging detection device according to claim 1, which is characterized in that
Chip frequency is 2MHz, wafer size 1mm × 8mm.
3. a kind of steel frame polyethylene compound pipe phased array imaging detection device according to claim 1, which is characterized in that
Phased array linear array probe (2) simultaneously extraction wire parallel with steel frame polyethylene compound pipe to be measured (3) axial direction, extraction
Conducting wire is connected with ultrasonic phase array detector (1).
4. a kind of steel frame polyethylene compound pipe phased array imaging detection device according to claim 1, which is characterized in that
The phased array linear array probe (2) is flat with pipeline axial direction along steel frame polyethylene compound pipe to be measured (3) outer surface
Row.
5. a kind of steel frame polyethylene compound pipe phased array imaging detection device according to claim 1, which is characterized in that
The ultrasonic phase array detector (1) is adopted by the FPGA (7) being arranged in computer (4) using rule progress data are focused
Collection, and acquisition data are passed through after A/D converter (8) carry out signal processing and extract useful signal, then useful signal is passed through
Pci bus (9) is transmitted to display module (6) after carrying out image co-registration processing.
6. a kind of steel frame polyethylene compound pipe phased array imaging detection device according to claim 1, which is characterized in that
64 chip number consecutivelies of phased linear probe (2) are 1-64 by the computer (4) of the ultrasonic phase array detector (1)
Number, it is divided into one group with every 8 chips and successively carries out excitation ultrasound wave, after 1-8 chip starts excitation ultrasound wave, 2-9 crystalline substance
Piece is excited for one group, and so on, each group wafer cycles are sent out along steel frame polyethylene compound pipe to be measured (3) axial direction
Ultrasonic signal is penetrated, then under the premise of not moving phased array linear array probe (2), by control ultrasonic signal to be measured
The deflection of different angle and the focusing of different depth are carried out on steel frame polyethylene compound pipe (3) tube wall depth direction, switching A is swept
Two kinds of lines are swept with B and sweep mode, finally, being passed inside steel frame polyethylene compound pipe to be measured (3) tube wall according to the ultrasonic signal
The flaw echoes that sowing time generates, formation B sweeps image after carrying out data processing, while the A being retained under different angle sweeps wave
Type signal；
The computer (4) sweeps that the A formed under channel sweeps wave mode signal and after B sweeps image, calculating is being worked as receiving two lines
The additional space range of the covering detection zone under the premise of parameter is arranged in the first two channel；In overlay area twice, for same
Two amplitude signals on one spatial position are chosen larger amplitude signal and are responded as the sound pressure amplitude of the position；Finally, with this
Analogize to form new detection sound field and form new B after processing and sweep image, and judges the matter of steel frame polyethylene compound pipe (3)
Amount.
7. a kind of steel frame polyethylene compound pipe phased array imaging detection device according to claim 1, which is characterized in that
The display module (6) includes 24 true colour display screen display screen, USB and Ethernet interface, display and output for testing result.
8. a kind of steel frame polyethylene compound pipe phased array imaging detection method, which is characterized in that first according to steel skeleton to be measured
Two lines that ultrasonic phase array detector (1) is respectively set in polyethylene compound pipe (3) sweep the detection parameters in channel, and two of them are logical
Road is set as the linear scanning mode of certain angle, the contrary setting of angular deflection；Wherein, angle is no more than 20 °；
In steel frame polyethylene compound pipe road (3) outer surface to be measured, detection faces, which are uniformly applied, spreads ultrasonic wave-coupled agent, by phased array
Probe placement on having applied the detection faces for wiping couplant, place along multiple tube axial direction by phased array linear array probe (2)；
The B for opening ultrasonic phase array detector (1) sweeps mode, detects skill by steel frame polyethylene compound pipe phased array imaging
Art forms the fusion B that two angle lines are swept and sweeps image checking as a result, sweeping image checking result according to B come to the poly- second of steel skeleton to be measured
Alkene multiple tube (3) quality makes evaluation.
9. a kind of steel frame polyethylene compound pipe phased array imaging detection method according to claim 8, which is characterized in that
By steel frame polyethylene compound pipe phased array imaging detection technique, forms the fusion B that two angle lines are swept and sweep image checking result
Detailed process is as follows:
64 chip number consecutivelies of phased linear probe (2) are No. 1-64 by ultrasonic phase array detector (1), with every 8
Chip is divided into one group and successively carries out excitation ultrasound wave, after 1-8 chip starts excitation ultrasound wave, 2-9 chip be one group into
Row excitation, and so on, each group wafer cycles transmitting ultrasonic wave letter along steel frame polyethylene compound pipe to be measured (3) axial direction
Number, under the premise of not moving phased array linear array probe (2), by control ultrasonic signal in steel skeleton polyethylene to be measured
The deflection of different angle and the focusing of different depth are carried out on multiple tube (3) tube wall depth direction, switching A, which is swept, sweeps two kinds of lines with B
Mode is swept, finally, lacking according to what the ultrasonic signal was generated in steel frame polyethylene compound pipe to be measured (3) tube wall internal communication
Echo-signal is fallen into, the A that B sweeps image, while being retained under different angle is formed after progress data processing and sweeps wave mode signal；
Computer (4) is swept wave mode signal and after B sweeps image, is calculated current two receiving two lines and sweep the A formed under channel
The additional space range of covering detection zone under the premise of a channel setting parameter；In overlay area twice, for same sky
Between two amplitude signals on position choose larger amplitude signal and responded as the sound pressure amplitude of the position；Finally, and so on
It forms new detection sound field and forms fusion B after processing and sweep image checking result.
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| CN112686846A (en) * | 2020-12-23 | 2021-04-20 | 北京航天特种设备检测研究发展有限公司 | Imaging processing method, equipment and computer readable storage medium |
| CN112686846B (en) * | 2020-12-23 | 2024-05-28 | 北京航天特种设备检测研究发展有限公司 | Imaging processing method, device and computer readable storage medium |
| CN116559297A (en) * | 2023-07-06 | 2023-08-08 | 汕头市超声检测科技有限公司 | Ultrasonic phased array defect image fusion method |
| CN116559297B (en) * | 2023-07-06 | 2023-09-12 | 汕头市超声检测科技有限公司 | Ultrasonic phased array defect image fusion method |
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