CN112345566A - Portable building wall connection neutron scattering imaging system for quality detection - Google Patents
Portable building wall connection neutron scattering imaging system for quality detection Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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Abstract
The invention discloses a neutron scattering imaging system for convenient building wall connection quality detection, which relates to the technical field of nondestructive detection and comprises a support, wherein the support is composed of two Y-axis bidirectional driving assemblies and two transverse bars, and also comprises an X-axis bidirectional driving assembly, a Z-axis bidirectional driving assembly is also installed on a driving platform of the X-axis bidirectional driving assembly, a neutron detector is fixedly installed on the driving platform of the Z-axis bidirectional driving assembly, a supporting wall support is fixedly installed at the end part of each Y-axis bidirectional driving assembly, one side wall at the top end of each Y-axis bidirectional driving assembly is rotatably connected with a supporting rod, a control host connected with the neutron detector is arranged between the two supporting rods, an inclined support is rotatably connected on the side wall at the bottom end of each Y-axis bidirectional driving assembly respectively, and the control host is further connected with a remote control end through signals; the invention can effectively detect the connection quality of buildings, has high reliability, can realize remote operation, does not need an external circuit and has strong applicability.
Description
Technical Field
The invention relates to the field of nondestructive testing, in particular to a neutron transmission imaging system for testing an assembled building wall.
Background
The grouting saturation of the fabricated concrete wall structure and the connection quality between walls thereof, such as sleeve connection and grout anchor connection, directly affects the safety of the structure. At present, the quality of the connection node of the prefabricated concrete structure lacks of an effective detection means. In recent years, more and more attention is paid to methods for detecting grouting fullness of connecting joints of sleeves of prefabricated concrete structures, and various methods and patents are shown in the eight figures and appear in the eight hundreds of thousands of stories, but a reliable and effective detection method cannot be achieved. The problems of lacking of ribs, cavities, unqualified concrete marks and the like exist in the wall structure.
The mainstream detection methods available in the literature currently include: ultrasonic flaw detection, electromagnetic wave (radar), impact echo, and X-ray. When the ultrasonic flaw detection method is used for detecting the internal structure of the concrete, the detection result is greatly influenced by the coupling of the transducer, and the diffraction and scattering of ultrasonic waves in the internal structure of the concrete cause the result to have high multiplicity. When the electromagnetic wave method (radar method) is used for detecting the grouting saturation of the concrete inner sleeve, the inner condition cannot be detected due to the shielding of the metal material of the sleeve. The mechanism of the impulse echo method is to use pulse mechanical wave to impact a detection point and measure the echo. Similar to the ultrasonic method, the echo of the impact echo method has great ambiguity, and the conclusion of the grouting quality of the sleeve cannot be reliably obtained. The X-ray method is a new method applied to the detection of construction engineering in recent years, and is characterized in that imaging is performed by transmitting a subject. However, the X-ray method has the problem of limited depth of penetration into the metal object, and has a general effect of imaging the detail difference inside the metal tube, and specific element components cannot be respectively extracted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a convenient neutron scattering imaging system for detecting the connection quality of a building wall, so as to solve the technical problem that no equipment for detecting the quality of the wall by using a neutron transmission technology exists in the prior art.
The invention is realized by the following technical scheme:
the invention provides a convenient neutron scattering imaging system for building wall connection quality detection, which comprises a support, wherein the support is composed of two Y-axis bidirectional driving assemblies which are parallel to each other and are vertically arranged, two cross bars, the top ends and the bottom ends of the two Y-axis bidirectional driving assemblies are respectively connected through one cross bar, the neutron scattering imaging system also comprises an X-axis bidirectional driving assembly, two ends of the X-axis bidirectional driving assembly are respectively and fixedly arranged on a driving platform of the Y-axis bidirectional driving assembly, a Z-axis bidirectional driving assembly is also arranged on the driving platform of the X-axis bidirectional driving assembly, a neutron detector is fixedly arranged on the driving platform of the Z-axis bidirectional driving assembly, a supporting wall support is fixedly arranged on the side wall of the end part of each Y-axis bidirectional driving assembly, which is on the same side as the neutron detector, in the top end part of each Y-axis bidirectional driving assembly, a supporting rod is rotatably connected on the side wall of each Y-axis bidirectional driving assembly, which is far away, two be provided with the main control system who is connected with neutron detector between the vaulting pole, main control system and two vaulting poles are respectively through connecting piece fixed connection, every rotate respectively on the lateral wall that Y axle bidirectional drive assembly bottom deviates from neutron detector and be connected with the bracing, every the other end of bracing rotates with the vaulting pole middle part of homonymy respectively and is connected, main control system still signal connection has the remote control end.
Furthermore, the neutron detector comprises a detector mainboard, and a neutron source module and a thermal neutron detection module which are respectively connected with the detector mainboard, wherein the detector mainboard is connected with the control host through a 485 bus.
Further, the control host comprises a first lithium battery power supply, a motor driving module, a first wireless transceiver module and an embedded core mainboard, wherein the first lithium battery power supply, the motor driving module and the first wireless transceiver module are respectively connected with the embedded core mainboard, and the detector mainboard is connected with the embedded core mainboard through a 485 bus.
Furthermore, the remote control end comprises a control mainboard, a display, a second wireless transceiver module and a second lithium battery power supply, wherein the display, the second wireless transceiver module and the second lithium battery power supply are respectively connected with the control mainboard.
Furthermore, a pointed grabbing foot is fixedly installed at the bottom end of each support rod.
Furthermore, the middle part of each scattering brace rod is provided with a waist-shaped groove used for adjusting the connecting position of the corresponding inclined strut, and each inclined strut is rotatably installed in the corresponding waist-shaped groove through an adjusting piece and is adjusted in the position of the waist-shaped groove through the adjusting piece.
Furthermore, each supporting wall support is composed of a connecting bolt and a supporting seat, one end of the connecting bolt is in threaded connection with the corresponding Y-axis bidirectional driving assembly, and the other end of the connecting bolt is in threaded connection with the corresponding supporting seat.
Further, the stay bar is of a telescopic structure.
Compared with the prior art, the invention has the following advantages:
1) compared with the equipment using an ultrasonic method and an impact echo method, the invention adopts a neutron transmission technology, thereby avoiding the defects of the traditional X-ray technology;
2) the invention does not need other pre-embedded sensors and other auxiliary processes, does not interfere the construction process and has good applicability;
3) this practical equipment simple structure can realize the multizone and detect, and it is convenient to remove simultaneously, the remote control of being convenient for.
Drawings
FIG. 1 is a schematic view of the structure of an apparatus in embodiment 1;
fig. 2 is a schematic diagram of connection of circuit elements in the system according to embodiment 1;
FIG. 3 is a schematic structural view of a joint between a base plate and a wall in example 3;
FIG. 4 is a calibration image of the area A1 without any structure inside in example 3;
FIG. 5 is a calibration image of the area A2 containing the standard sleeve and the steel bar inside but no slurry in example 3;
FIG. 6 is a calibration image of the area A3 containing the standard sleeve, steel bars and slurry inside in example 3;
FIG. 7 is an image P' finally formed of the detection region in example 3;
fig. 8 is an image P' finally formed in the inspection area formed for another adapter sleeve according to embodiment 3.
In the figure: 1. a Y-axis bidirectional drive assembly; 2. horizontal bars; 3. an X-axis bidirectional drive assembly; 4. a Z-axis bidirectional drive assembly; 5. a neutron detector; 6. a wall bracing support; 7. a stay bar; 8. a control host; 9. bracing; 10. a remote control end; 11. a detector main board; 12. a neutron source module; 13. a thermal neutron detection module; 14. a first lithium battery power supply; 15. a motor drive module; 16. a first wireless transceiving module; 17. an embedded core motherboard; 18. a control main board; 19. a display; 20. a second wireless transceiver module; 21. a second lithium battery power supply; 22. a sharp-end claw; 23. a waist-shaped groove; 24. an adjustment member; 25. a connecting bolt; 26. and (4) supporting the base.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
With reference to fig. 1, this embodiment provides a neutron scattering imaging system for connection quality detection of portable building wall, including a support, for the convenience of equipment transportation and attached on the wall that is surveyed, for the convenience of equipment's removal simultaneously, in this embodiment, the support specifically comprises two Y axle bidirectional drive assemblies 1 that are parallel to each other and vertical setting (also can set up two Y axle bidirectional drive assemblies 1 to one, another is the slide bar alright, can set up as required) and two whippletrees 2, connect through a whippletree 2 respectively between the top of two Y axle bidirectional drive assemblies 1 and the bottom (namely two Y axle bidirectional drive assemblies 1 and two whippletrees 2 constitute a rectangle stable structure), still include an X axle bidirectional drive assembly 3, the both ends of X axle bidirectional drive assembly 3 are fixed mounting respectively on the drive platform of a Y axle bidirectional drive assembly 1 (thereby two or a Y axle bidirectional drive assembly 1 can effectively drive X axle bidirectional drive assembly 1 The axial bidirectional assembly 3 moves up and down in the whole, specifically 1Y-axis bidirectional driving assembly 1 in the embodiment, and the other one is replaced by a sliding rod), a Z-axis bidirectional driving assembly 4 is further installed on a driving platform of the X-axis bidirectional driving assembly 3, and a neutron detector 5 is fixedly installed on the driving platform of the Z-axis bidirectional driving assembly 4, namely, the neutron detector 5 can effectively realize limited movement in a three-dimensional space through the arrangement; in order to keep the formed rectangular stable structure parallel to the measured wall and thus to keep the neutron detector 5 stable, in this embodiment, the side walls of the two end parts of each Y-axis bidirectional driving assembly 1 on the same side as the neutron detector 5 are fixedly provided with a supporting wall support 6, by which the rectangular structure can be effectively kept parallel to the measured wall, so that the neutron detector 5 can be always kept parallel to the measured wall when the vertical surface reciprocates, and simultaneously, in order to be stable when the rectangular structure is vertically arranged, in this embodiment, the side wall of the top end of each Y-axis bidirectional driving assembly 1 away from the neutron detector 5 is rotatably connected with a supporting rod 7, the side wall of the bottom end of each Y-axis bidirectional driving assembly 1 away from the neutron detector 5 is respectively rotatably connected with an inclined strut 9, and the other end of each inclined strut 9 is respectively rotatably connected with the middle part of the supporting rod 7 on the same side, therefore, after the rectangular structure is adjusted, the whole rectangular structure can be effectively supported through the support rods 7 and the inclined supports 9, and the purpose of stabilizing equipment is achieved; meanwhile, in order to facilitate later-stage carrying and transferring of equipment, a control host 8 connected with the neutron detector 5 is arranged between the two support rods 7, the control host 8 and the two support rods 7 are fixedly connected through connecting pieces respectively, and the control host 8 is further connected with a remote control end 10 in a signal mode; through the arrangement, the neutron detector 5 can be effectively controlled through the remote control end 10 through the control host 8, and meanwhile, the acquired data can be effectively acquired.
The working principle is as follows:
before the equipment works, firstly, a rectangular structure formed by a Y-axis bidirectional driving assembly 1 and a cross bar 2 is vertically placed, then, after a wall supporting support 6 is attached to a tested wall body, a support rod 7 is opened to move to a position capable of stably supporting the rectangular structure and then be fixed, a support rod 7 can be effectively supported by an inclined support 9, after the equipment is installed, a remote control end 10 controls the actions of a neutron detector 5, the Y-axis bidirectional driving assembly 1, an X-axis bidirectional driving assembly 3 and a Z-axis bidirectional driving assembly 4 through a control host 8, and meanwhile, feedback information is received; wherein all drive assemblies are set up as the hold-in range linear die set slip table in this embodiment.
After the equipment is installed, firstly, the control host 8 controls the Z-axis bidirectional driving assembly 4 to drive the neutron detector 5 to move to a set distance from a measured wall body, then the control host 8 controls the Y-axis bidirectional driving assembly 1 and the X-axis bidirectional driving assembly 3 to drive the neutron detector 5 to move on a two-position vertical surface according to the setting, neutron emission and thermal neutron receiving are carried out by the neutron detector 5 to obtain corresponding neutron distribution density and feed back to the remote control end 10, through continuous scanning, the remote control end 10 can carry out corresponding judgment according to the comparison of the received information and standard data (namely, data obtained by detecting grouting saturated materials), and can also make the detected data into neutron distribution images, when the neutron image distribution density detected at a certain position is obviously lower than the neutron density under the same condition, the unsaturated problem in the region can be judged, and the unsaturation degree is given, so that the effective detection of the building connection quality is realized.
The principle of the invention for detection is that neutrons are not charged and can easily penetrate through an electron layer, so that when the neutrons irradiate a precast concrete plate (as shown in figure 3) containing reinforcing steel bars and reinforcing steel bar sleeves inside, the neutrons can easily penetrate through the reinforcing steel bar sleeves, collide with hydrogen atoms contained in grouting materials inside the sleeves to form scattering, finally are moderated into thermal neutrons, and the thermal neutrons scatter around, and can obtain the distribution density of the neutrons by receiving the scattered thermal neutrons; under automatic and continuous emission and reception, a neutron scattering image of the detection area can be formed, and the quality of the interior of the structure can be obtained according to comparison with a standard component.
Particularly, in this embodiment, the neutron detector 5 includes a detector motherboard 11, and a neutron source module 12 and a thermal neutron detection module 13 respectively connected to the detector motherboard 11, where the detector motherboard 11 is connected to the control host 8 through a 485 bus;
specifically, in this embodiment, the control host 8 includes a first lithium battery power supply 14, a motor driving module 15, a first wireless transceiver module 16, and an embedded core motherboard 17, the first lithium battery power supply 14, the motor driving module 15, and the first wireless transceiver module 16 are respectively connected to the embedded core motherboard 17, and the detector motherboard 11 is connected to the embedded core motherboard 17 through a 485 bus.
Specifically, in the present embodiment, the remote control terminal 10 includes a control main board 18, a display 19, a second wireless transceiver module 20, and a second lithium battery power supply 21, and the display 19, the second wireless transceiver module 20, and the second lithium battery power supply 21 are respectively connected to the control main board 18.
In particular, in order to be able to stably fix the struts 7, a pointed catch foot 22 is fixedly mounted at the bottom end of each strut 7 in the present embodiment.
In particular, in order to avoid that the struts 7 cannot accurately support the rectangular structure when being unfolded at a fixed angle, in this embodiment, a waist-shaped groove 23 for adjusting the connection position of the corresponding strut 9 and the corresponding strut 7 is formed in the middle of each strut 7, each strut 9 is rotatably installed in the corresponding waist-shaped groove 23 through an adjusting piece 24, and the position of each strut in the corresponding waist-shaped groove 23 is adjusted through the adjusting piece 24, the adjusting piece 24 can be a combination of a bolt and a butterfly nut, and the support point of the strut 9 can be adjusted through the waist-shaped groove 23 and the adjusting piece 24, so that the unfolding angle of the strut 7 can be conveniently adjusted, and the defects are avoided.
In particular, in order to avoid the detection process error caused by uneven wall, in this embodiment, each supporting wall support 6 is composed of a connecting bolt 25 and a supporting seat 26, one end of the connecting bolt 25 is in threaded connection with the corresponding Y-axis bidirectional driving assembly 1, the other end of the connecting bolt is in threaded connection with the corresponding supporting seat 26, the distance between the corresponding supporting seat 26 and the rectangular structure can be effectively adjusted by adjusting the connecting bolt 25, so that the supporting wall can be adapted to, and the rectangular frame can be always kept vertical or kept on one surface when the neutron detector 5 moves in two dimensions.
In particular, in order to further improve the adjustability of the stay 7, in the present embodiment the stay 7 is embodied as a telescopic structure.
Particularly, all the motherboards in this embodiment are STM32F103 embedded ARM main control units, and all the wireless transceiver modules are 433MHz wireless transceiver units.
Example 2
The embodiment provides a method for detecting grouting saturation of an inner sleeve of an assembly type building wall by using the equipment, which specifically comprises the following steps:
firstly, the device in the embodiment 1 is installed on one side of the wall body of the prefabricated building to be detected, and then the following steps are carried out:
s1, determining the following parameters and inputting the parameters into the remote control terminal 10: the thickness d of the detected assembled building wall, the burial depth h of the sleeve in the detection area, the outer diameter R of the sleeve and the inner diameter R of the sleeve1Radius of reinforcement r2；
S2, establishing a coordinate system: the right lower part of the exposed opening of the sleeve is an original point, the horizontal direction is an x axis, the vertical direction is an upward y axis, the two sides of the x axis are expanded by L/2, L is 3-5 times of R, the y axis extends upwards by H, and a delineation detection area is S (LXH);
s3, according to the established coordinate system, the neutron detector 5 moves to two sides of the lower left point of the S area under the coordination of the Y-axis bidirectional driving assembly 1 and the X-axis bidirectional driving assembly 3 (wherein the neutron detector 5 is driven to move to the set distance from the wall to be detected through the Z-axis bidirectional driving assembly 4 before the operation and keeps unchanged, and all equipment runs through the remote control end 10 and then sends control commands to all driving assemblies through the control host 8), then the neutron detector 5 performs primary thermal neutron scattering and acquisition to obtain a thermal neutron single scattering diagram of the section of the probe of the neutron detector 5Like p11；
S4, moving the neutron detector 5 upwards by a dH distance, performing neutron irradiation and scattering acquisition again, and acquiring a thermal neutron single scattering image p12The dH is U/2, and U is the side length of the square cross section of the probe of the neutron detector 5;
s5, moving the dH distance upwards again, repeating neutron detection until the height scanning of the y axis H is completed, and forming a continuous thermal neutron scattering image sequence p1m，m＝1～M，M＝H/dH+1；
S6, moving dL to the right, and repeating steps S4 and S5 to form a2 nd continuous neutron scattering image p2m；
S7, scanning from left to right to form N columns of thermal neutron scattering image arrays { pNM}；
S8, constructing a new blank image P with the size of (N +1) X (M +1) Xd (H/2)2Dividing it into M +1 rows and N +1 columns of sub-blocks, P for sub-blockijI is 1 to N +1, and j is 1 to M + 1;
s9, scattering all the columns of neutron images { pNMDividing each subgraph in the four-equal subgraph, and p at the upper leftij,ltLower left is pij,lbAnd p at the upper rightij,rtAnd p at the bottom rightij,rb；
S10, taking the 1 st column P of the new subgraph1j
S11, column i Pij，1＜i＜N+1
S11, column N + 1P(N+1)j
And S13, forming a new image P, performing two-dimensional filtering to form a final image P ', and identifying the sleeve grouting saturation in the detection area through the image P'.
Specifically, the method further comprises the steps of setting a neutron radiation dose before the formal detection, uniformly using the dose in the detection process, and performing neutron scattering calibration on a standard sample on site before or after the S1-13 is performed on the fabricated building wall to obtain a standard value of scattering data of the standard sample, wherein the standard sample comprises: the concrete test block without any structure inside, the test block with the standard sleeve, the steel bar and the slurry inside, and the test block without the slurry inside with the standard sleeve and the steel bar; the step S1-13 is specifically as follows:
s13.1, observing the uniformity of the non-sleeve area of the image P', comparing the transmission data with a corresponding standard value, and if the image is not uniform and the value of the transmission data of the non-uniform area of the image is smaller than the corresponding standard value, determining that an internal cavity is abnormal in the corresponding non-sleeve area;
s13.2, observing the uniformity of the sleeve area of the image P', comparing the transmission data with a corresponding standard value, and if the image is not uniform and the value of the transmission data of the non-uniform image area is smaller than the corresponding standard value, determining that the non-sleeve area has grouting unsaturation abnormality.
Example 3
The following experiments were performed using the apparatus and method described above:
1) the method of embodiment 2 is used for detecting the connection quality of the bottom plate and the wall body shown in fig. 3 by using the equipment shown in embodiment 1, and specifically comprises the following steps:
2) the thickness d of the wall body is 200 mm. The equipment is used for carrying out calibration sampling on each part of a wall sample plate with the thickness of 200mm, and the wall sample plate comprises a region A1 without any structure inside, a region A2 with standard sleeves, steel bars and no slurry inside, and a region A3 with standard sleeves, steel bars and slurry inside. Forming a calibration image PA1(FIG. 4) PA2(FIG. 5) PA3(FIG. 6).
3) As an implementation example, one of the connecting sleeves in FIG. 3 is selected, the detection area is defined, and the area 1 is divided into N rowsAn equally divided grid of M rows. According to the equal grid step length, continuously and automatically scanning the area to form a neutron scattering graph sequence { pNM}。
4) Scattering neutrons into a map pNMData processing using the data processing technique of example 2 results in a composite continuous neutron scatter image P' as shown in fig. 7. As can be seen from the image P', there is unsaturation in the sleeve, and the unsaturation q is 14.09%, which is calculated according to the following formula:
s is the picture PA1Neutron density mean, PA1S is 1.682e5/m2；
spiNeutron density at the point of unsaturation in the inspected image, S at the sampling point of the abnormal region in FIG. 7pi＝1.445e5/m2。
5) Similarly, another connecting sleeve is selected for detection, fig. 8 is a composite continuous neutron scattering image P, and an abnormal area exists on the left side of the middle of the image P, and a sampling point s of the abnormal area in the abnormal area is foundpi＝1.445e5/m2The unsaturation degree q is 29.43%
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a neutron scattering imaging system for quality testing is connected to portable building wall, includes the support, its characterized in that, the support specifically comprises two Y axle bidirectional drive assembly (1) and two whippletree (2) that are parallel to each other and vertical setting respectively through one between the top of Y axle bidirectional drive assembly (1) and the bottom whippletree (2) are connected, still include an X axle bidirectional drive assembly (3), fixed mounting is on the drive platform of a Y axle bidirectional drive assembly (1) respectively at the both ends of X axle bidirectional drive assembly (3), still install Z axle bidirectional drive assembly (4) on the drive platform of X axle bidirectional drive assembly (3), fixed mounting has neutron detector (5) on the drive platform of Z axle bidirectional drive assembly (4), every equal fixed mounting has the wall that props on the lateral wall of neutron detector (5) homonymy in Y axle bidirectional drive assembly (1) both ends tip and the lateral wall Support (6), every all rotate on the lateral wall that deviates from neutron detector (5) in Y axle bidirectional drive assembly (1) top and be connected with a vaulting pole (7), two be provided with host computer (8) of being connected with neutron detector (5) between vaulting pole (7), host computer (8) and two vaulting poles (7) are respectively through connecting piece fixed connection, every Y axle bidirectional drive assembly (1) bottom rotates respectively on deviating from the lateral wall of neutron detector (5) and is connected with bracing (9), every the other end of bracing (9) rotates with vaulting pole (7) middle part of homonymy respectively and is connected, host computer (8) signal connection still has remote control end (10).
2. The neutron scattering imaging system for the convenient building wall connection quality detection according to claim 2, wherein the neutron detector (5) comprises a detector main board (11), and a neutron source module (12) and a thermal neutron detection module (13) which are respectively connected with the detector main board (11), and the detector main board (11) is connected with the control host (8) through a 485 bus.
3. The neutron scattering imaging system for the connection quality detection of the portable building wall according to claim 2, wherein the control host (8) comprises a first lithium battery power supply (14), a motor driving module (15), a first wireless transceiver module (16) and an embedded core motherboard (17), the first lithium battery power supply (14), the motor driving module (15) and the first wireless transceiver module (16) are respectively connected with the embedded core motherboard (17), and the detector motherboard (11) is connected with the embedded core motherboard (17) through a 485 bus.
4. The neutron scattering imaging system for the connection quality detection of the portable building wall according to claim 3, wherein the remote control terminal (10) comprises a control main board (18), a display (19), a second wireless transceiver module (20) and a second lithium battery power supply (21), and the display (19), the second wireless transceiver module (20) and the second lithium battery power supply (21) are respectively connected with the control main board (18).
5. The neutron scattering imaging system for the connection quality detection of the portable building walls as claimed in claim 4, wherein a pointed grabbing foot is fixedly installed at the bottom end of each supporting rod (7).
6. The neutron scattering imaging system for the connection quality detection of the portable building wall according to claim 5, wherein a waist-shaped groove (23) for adjusting the connection position of the corresponding inclined strut (9) is formed in the middle of each scattering strut (7), each inclined strut (9) is rotatably installed in the corresponding waist-shaped groove (23) through an adjusting piece (24), and the position of each inclined strut in the waist-shaped groove (23) is adjusted through the adjusting piece (24).
7. The neutron scattering imaging system for the connection quality detection of the portable building walls as claimed in claim 6, wherein each of the supporting wall supports (6) is composed of a connecting bolt (25) and a supporting seat (26), one end of the connecting bolt (25) is in threaded connection with the corresponding Y-axis bidirectional driving assembly (1), and the other end of the connecting bolt is in threaded connection with the corresponding supporting seat (26).
8. The neutron scattering imaging system for the connection quality detection of the portable building walls according to claim 7, characterized in that the brace rod (7) is a telescopic structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011334066.6A CN112345566A (en) | 2020-11-25 | 2020-11-25 | Portable building wall connection neutron scattering imaging system for quality detection |
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| CN202011334066.6A CN112345566A (en) | 2020-11-25 | 2020-11-25 | Portable building wall connection neutron scattering imaging system for quality detection |
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| CN202011334066.6A Pending CN112345566A (en) | 2020-11-25 | 2020-11-25 | Portable building wall connection neutron scattering imaging system for quality detection |
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