CN205643254U - A phase place adds weight vector and focuses on image device entirely that is used for forging crackle ration to discern - Google Patents
A phase place adds weight vector and focuses on image device entirely that is used for forging crackle ration to discern Download PDFInfo
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- CN205643254U CN205643254U CN201620133663.5U CN201620133663U CN205643254U CN 205643254 U CN205643254 U CN 205643254U CN 201620133663 U CN201620133663 U CN 201620133663U CN 205643254 U CN205643254 U CN 205643254U
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Abstract
The utility model provides a phase place adds weight vector and focuses on image device entirely that is used for forging crackle ration to discern, phased array detector one end and computer link, the other end is connected with the phased array transducer, the phased array transducer with wait to detect the test piece and carry out the coupling through coupling medium. Waiting to detect the test piece and placing on waiting to detect the test piece platform, it has two draw -in grooves that intersect vertically to wait to detect to open on the test piece platform, installs movable clamping head in the draw -in groove, and movable clamping head can follow the draw -in groove and freely adjust, waits to detect the test piece and carries out the chucking through movable clamping head and fix, waiting the bottom of detecting the test piece platform and installing the connecting block, the bottom of connecting block is passed through screw -thread fit and is linked to each other with the lead screw, the lead screw is installed on the mobile support of four group's symmetries, and mobile support is connected with the connecting rod, and the connecting rod is the ascending elevating system of vertical side, and driving motor is connected with the connecting rod through the reduction gear, the position of waiting to detect the test piece can freely be adjusted to this device, carries out freely fixing flexible operation, convenience to this test piece.
Description
Technical field
This utility model relates to a kind of vector total focus imaging device based on phase weighting, quantitatively knows especially for forging crack
Other supersonic array detects, and belongs to field of non destructive testing.
Background technology
Forging be country major technologies and equipment and Important Project necessary to important foundation part, its nuclear power station pressure vessel,
The low pressure rotor of generating set and the core component of various heavy-duty machinery are all widely used.Along with national economy
Fast development, the demand of large forgings is also by increasing.In practical engineering application, due to work under bad environment, large-scale
Forging is often subjected to stress, impact shock and the heavy burden load of complexity.Simultaneously as the production process of large forgings is many, production
Cycle is long, therefore the factor affecting its quality is the most more, and this makes large forgings will inevitably occur so in process of production
Such defect, in forging, existing defects is greatly reduced its mechanical property, the most in use it also occur that rupture,
Cause serious safety and quality accident.
Crack defect is one of defect common in forging, and owing to crackle has directivity, and the crackle of different directions is to structure
Hazardness is not quite similar, and when direction of check and structural bearing are perpendicular, the harm of crackle is maximum, and structure easily occurs the most disconnected
Split.Therefore, in time crack defect in structure is detected and direction discernment, for life-span, the on-call maintenance of pre-geodesic structure
Or replacing parts, guarantee equipment have great importance safely.
Ultrasonic phase array detection technique uses the array energy transducer being made up of multiple (generally higher than 16) array element, by electronics skill
Art controls the ultrasonic action reception delay of each array element, it is achieved acoustic beam deflects in the orientation within test specimen and focuses on.Utilize commercial phased
Battle array detecting system can carry out realtime imaging to component very easily, it is achieved to the A type of echo-signal, Type B, electronics Type B,
C-type, D type and S type detect imaging in real time, but while ensureing imaging real-time, its accuracy of detection and defect characterize ability
But it is extremely limited.
In recent years, along with the development of computer technology, ultrasonic phase array post processing imaging technique has obtained significant progress.Ultrasonic
Phased array post processing imaging technique, by the array data collected is carried out processed offline, obtains high-precision imaging effect,
Belong to a kind of non real-time detection formation method.By phased array detection data are carried out post processing imaging, ultrasonic phase can be improved
The precision of control battle array detection and defect recognition ability.Chinese scholars has carried out a large amount of Zhuo to phased array complete matrix data post processing method
Fruitful research.Such as, 2009 journal article " Phase coherence imaging " divided by the phase place of arrayed data
Cloth is analyzed, it is proposed that a kind of suppressed sidelobes and graing lobe, and the supersonic array formation method phase place improving imaging resolution adds
Power formation method, the method can only carry out detection and localization to defect in structure, but can not realize the feature identification of defect.2014
In Master's thesis " supersonic array defect identification method based on vector total focus research and application " complete to vector based on amplitude
Focal imaging and influence factor thereof conduct in-depth research, the optimal detection parameter of optimization, it is achieved that the direction of crackle is known
Not, length measurment.Journal article " Defect characterization using an ultrasonic array to measure the in 2008
Scattering coefficient matrix " by defect scattering coefficient matrix is analyzed, it is proposed that defect based on scattering coefficient matrix
Characteristic recognition method, it is achieved that to hole and the differentiation of crackle and crack defect direction, the mensuration of size.Entirely gather for conventional vector
Focusing imaging method is merely with signal amplitude information, and its image quality big feature affected by noise, this utility model comprehensive utilization is complete
The amplitude of matrix data and phase information, propose a kind of vector total focus formation method based on phase weighting, it is achieved split in forging
Stricture of vagina direction discernment and quantitative-length are measured.
Summary of the invention
The purpose of this utility model is to propose a kind of vector total focus based on phase weighting for forging crack quantitative judge
Formation method.First, the phase information of complete matrix data is analyzed, extracts phase property parameter phase one reason
Son (PCF)；Then, full array is divided into some subarrays, utilizes the phase property parameter the proposed one-tenth to each subarray
Film size value is weighted, and asks for weighting amplitude Characteristics vector；Finally, the weighted feature vector of all subarrays is synthesized,
Obtain the vector total focus imaging of phase weighting, and therefrom extract the characteristic information such as direction of check and size.
For realizing said method, first build this ultrasonic phase array detection device, as shown in Figure 1.This ultrasonic phase array detects
Device include computer 1, phased array detector 2, phase array transducer 3, test specimen to be detected 4, movable chuck 5, draw-in groove 6,
Test specimen platform 7 to be detected, contiguous block 8, leading screw 9, movable bearing support 10, connecting rod 11, driving motor 12, base 13；
Wherein, phased array detector 2 one end is connected with computer 1, and the other end is connected with phase array transducer 3, phase array transducer
3 are coupled by couplant with test specimen 4 to be detected.
Test specimen 4 to be detected is placed on test specimen platform 7 to be detected, and test specimen platform 7 to be detected has two cards intersected vertically
Groove 6, is provided with movable chuck 5 in draw-in groove 6, movable chuck 5 freely can regulate along draw-in groove 6, and test specimen 4 to be detected passes through
Movable chuck 5 carries out card and fastens；The bottom of test specimen platform 7 to be detected is provided with contiguous block 8, and the bottom of contiguous block 8 is passed through
Threaded engagement is connected with leading screw 9；Leading screw 9 is arranged on four groups of symmetrical movable bearing supports 10, movable bearing support 10 and connecting rod
11 are connected, and connecting rod 11 is the elevating mechanism on vertical direction, drive motor 12 to be connected with connecting rod 11 by decelerator
Connect；Motor 12, connecting rod 11 is driven to be installed in base 13.
The probe of described phase array transducer 3 is made up of 32 array elements.
The excitation in phased array detector 2 under the control of computer 1/receiver module produces pumping signal, is changed by phased array
Ultrasonic signal can be motivated by device 3 (the linear array phased array probes of 32 array element compositions), propagate along test specimen 4 to be detected, and lead to
Cross phase array transducer 3 and receive the ultrasonic signal of reflection, then encourage/receive mould by the signal in phased array detector 2
Block is transferred in computer 1, can gather time-domain signal by acquisition software matched in computer.
Compared with prior art, this device can freely regulate the position of test specimen to be detected, carries out freely fixing to this test specimen, behaviour
Make flexibly, convenient, the significant increase detection level of this device.
Accompanying drawing explanation
Fig. 1 is detection device block diagram of the present utility model
In figure: 1, computer, 2, phased array detector, 3, phase array transducer, 4, test specimen to be detected, 5, active card
Head, 6, draw-in groove, 7, test specimen platform to be detected, 8, contiguous block, 9, leading screw, 10, movable bearing support, 11, connecting rod, 12,
Drive motor, 13, base.
Detailed description of the invention
When utilizing the method to detect forging, its detecting system is that ultrasonic phase array detects device, as shown in Figure 1.This surpasses
Sound phased array detection device includes computer 1, phased array detector 2, phase array transducer 3, test specimen to be detected 4, active card
5, draw-in groove 6, test specimen platform 7 to be detected, contiguous block 8, leading screw 9, movable bearing support 10, connecting rod 11, drive motor
12, base 13；Wherein, phased array detector 2 one end is connected with computer 1, and the other end is connected with phase array transducer 3,
Phase array transducer 3 is coupled by couplant with test specimen 4 to be detected.
Test specimen 4 to be detected is placed on test specimen platform 7 to be detected, and test specimen platform 7 to be detected has two cards intersected vertically
Groove 6, is provided with movable chuck 5 in draw-in groove 6, movable chuck 5 freely can regulate along draw-in groove 6, and test specimen 4 to be detected passes through
Movable chuck 5 carries out card and fastens；The bottom of test specimen platform 7 to be detected is provided with contiguous block 8, and the bottom of contiguous block 8 is passed through
Threaded engagement is connected with leading screw 9；Leading screw 9 is arranged on four groups of symmetrical movable bearing supports 10, movable bearing support 10 and connecting rod
11 are connected, and connecting rod 11 is the elevating mechanism on vertical direction, drive motor 12 to be connected with connecting rod 11 by decelerator
Connect；Motor 12, connecting rod 11 is driven to be installed in base 13.
The probe of described phase array transducer 3 is made up of 32 array elements.
The excitation in phased array detector 2 under the control of computer 1/receiver module produces pumping signal, is changed by phased array
Ultrasonic signal can be motivated by device 3 (the linear array phased array probes of 32 array element compositions), propagate along test specimen 4 to be detected, and lead to
Cross phase array transducer 3 and receive the ultrasonic signal of reflection, then encourage/receive mould by the signal in phased array detector 2
Block is transferred in computer 1, can gather time-domain signal by acquisition software matched in computer.
Claims (2)
1. the phase weighting vector total focus imaging device for forging crack quantitative judge, it is characterised in that: this device
Including computer (1), phased array detector (2), phase array transducer (3), test specimen to be detected (4), movable chuck (5),
Draw-in groove (6), test specimen platform to be detected (7), contiguous block (8), leading screw (9), movable bearing support (10), connecting rod (11),
Drive motor (12), base (13)；Wherein, phased array detector (2) one end is connected with computer (1), the other end with
Phase array transducer (3) connects, and phase array transducer (3) is coupled by couplant with test specimen to be detected (4)；
Test specimen to be detected (4) is placed on test specimen platform (7) to be detected, and test specimen platform (7) to be detected has vertical phase
Two clamp bar slots (6) handed over, are provided with movable chuck (5) in draw-in groove (6), movable chuck (5) can along draw-in groove (6) certainly
By regulating, test specimen to be detected (4) carries out card by movable chuck (5) and fastens；The bottom of test specimen platform (7) to be detected
Being provided with contiguous block (8), the bottom of contiguous block (8) is connected with leading screw (9) by threaded engagement；Leading screw (9) is arranged on
On four groups of symmetrical movable bearing supports (10), movable bearing support (10) is connected with connecting rod (11), and connecting rod (11) is perpendicular
Nogata elevating mechanism upwards, drives motor (12) to be connected with connecting rod (11) by decelerator, driving motor (12),
Connecting rod (11) is installed in base (13).
A kind of phase weighting vector total focus imaging for forging crack quantitative judge the most according to claim 1 fills
Put, it is characterised in that: the probe of described phase array transducer (3) is made up of 32 array elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620133663.5U CN205643254U (en) | 2016-02-22 | 2016-02-22 | A phase place adds weight vector and focuses on image device entirely that is used for forging crackle ration to discern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620133663.5U CN205643254U (en) | 2016-02-22 | 2016-02-22 | A phase place adds weight vector and focuses on image device entirely that is used for forging crackle ration to discern |
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| Publication Number | Publication Date |
|---|---|
| CN205643254U true CN205643254U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620133663.5U Expired - Fee Related CN205643254U (en) | 2016-02-22 | 2016-02-22 | A phase place adds weight vector and focuses on image device entirely that is used for forging crackle ration to discern |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093204A (en) * | 2016-02-22 | 2016-11-09 | 南京兰博瑞达检测技术有限公司 | A kind of phase weighting vector total focus imaging device for forging crack quantitative judge and method |
-
2016
- 2016-02-22 CN CN201620133663.5U patent/CN205643254U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093204A (en) * | 2016-02-22 | 2016-11-09 | 南京兰博瑞达检测技术有限公司 | A kind of phase weighting vector total focus imaging device for forging crack quantitative judge and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20180222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |