CN113588657A - Device and method for accurately measuring concrete surface cracks - Google Patents
Device and method for accurately measuring concrete surface cracks Download PDFInfo
- Publication number
- CN113588657A CN113588657A CN202110802117.1A CN202110802117A CN113588657A CN 113588657 A CN113588657 A CN 113588657A CN 202110802117 A CN202110802117 A CN 202110802117A CN 113588657 A CN113588657 A CN 113588657A
- Authority
- CN
- China
- Prior art keywords
- laser
- concrete surface
- receiver
- laser receiver
- direction laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 238000010586 diagram Methods 0.000 claims abstract description 18
- 238000003384 imaging method Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000002310 reflectometry Methods 0.000 claims description 5
- 239000011378 shotcrete Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000000691 measurement method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000005336 cracking Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000001579 optical reflectometry Methods 0.000 description 3
- 238000002076 thermal analysis method Methods 0.000 description 3
- 238000001931 thermography Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
A device and a method for accurately measuring concrete surface cracks relate to the field of crack detection. The device for accurately measuring the concrete surface cracks comprises a support frame, an X-direction laser transmitter capable of moving along the X direction to transmit laser to the concrete surface, an X-direction laser receiver for receiving reflected laser transmitted by the X-direction laser transmitter, a Y-direction laser transmitter capable of moving along the Y direction to transmit laser to the concrete surface, a Y-direction laser receiver for receiving reflected laser transmitted by the Y-direction laser transmitter, a spray header and an imaging analysis system; the spray header is used for spraying liquid to the surface of the concrete; the imaging analysis system is used for receiving laser signals of the X-direction laser receiver and the Y-direction laser receiver and outputting a signal distribution diagram of an average value of the laser signals received by the X-direction laser receiver and the Y-direction laser receiver. The device and the method for accurately measuring the concrete surface cracks can effectively improve the precision of detecting and identifying the concrete surface cracks.
Description
Technical Field
The application relates to the field of crack detection, in particular to a device and a method for accurately determining concrete surface cracks.
Background
Concrete is a traditional material widely applied to various foundation constructions, concrete cracking is a common problem occurring in concrete structures, if micro cracks formed in the early stage of concrete are not observed, found and repaired in time, the micro cracks may be expanded into macro cracks to further reduce the mechanical properties of buildings, and if cracking occurs, the corrosion degree of the concrete and steel bars is increased, so that the bearing capacity and durability of the foundation are affected. Therefore, the method has great significance for building quality guarantee by detecting and treating concrete cracking.
However, the concrete cracks are usually inspected by adopting a manual measurement mode, but the manual measurement has high cost and tedious operation, measurement errors are easily introduced, and the measurement accuracy cannot meet the evaluation of the tiny cracks. Therefore, there are patents and literature that propose various solutions such as: optical measurement methods, acoustic measurement methods, thermal analysis measurement methods, and the like. The optical measurement method is similar to the acoustic measurement method, and the width depth and the size of the crack are determined through reflection and scattering of the wave; the thermal analysis measuring method is to analyze the width and depth of the crack through different specific heat capacities of different mediums on the surface of the concrete.
However, the methods have limitations, wherein when the optical measurement method and the acoustic measurement method are used for detection, the waveform signal collection is affected due to the irregular crack shape and the unevenness of the concrete surface, so that the actual crack cannot be accurately reflected by factors such as industrial design and the like of the wall surface; the thermal analysis measuring method has the defects of insufficient thermal imaging analysis precision, so that the whole measurement has larger errors and the requirement of crack detection precision is difficult to meet.
Disclosure of Invention
The application aims to provide a device and a method for accurately measuring concrete surface cracks, which can effectively improve the precision of concrete surface crack detection and identification.
The embodiment of the application is realized as follows:
the embodiment of the application provides a device of accurate survey concrete surface crack, it includes:
a support frame;
the X-direction laser emitter is movably connected to the support frame along the X direction and used for emitting laser to the surface of the concrete;
the X-direction laser receiver is movably connected to the support frame along the X direction and used for receiving the laser reflected by the X-direction laser transmitter after being transmitted to the surface of the concrete;
the Y-direction laser emitter is movably connected to the support frame along the Y direction and used for emitting laser to the surface of the concrete;
the Y-direction laser receiver is movably connected to the support frame along the Y direction and used for receiving the laser reflected by the Y-direction laser transmitter after being transmitted to the surface of the concrete;
the spray header is used for spraying liquid to the surface of the concrete;
and the imaging analysis system is used for receiving laser signals of the X-direction laser receiver and the Y-direction laser receiver and outputting a signal distribution diagram of an average value of the laser signals received by the X-direction laser receiver and the Y-direction laser receiver.
In some optional embodiments, the support frame is provided with two parallel X-direction sliders and an X-direction driving device for driving the two X-direction sliders to move along the X direction, and the X-direction laser transmitter and the X-direction laser receiver are respectively connected to the two X-direction sliders.
In some optional embodiments, the support frame is provided with two Y-direction sliders arranged in parallel and a Y-direction driving device for driving the two Y-direction sliders to move along the Y-direction, and the Y-direction laser emitter and the Y-direction laser receiver are respectively connected to the two Y-direction sliders.
In some alternative embodiments, the showerhead is configured to be movably coupled to the support frame in the X-direction and the Y-direction.
The application also provides a method for accurately measuring the concrete surface cracks, which comprises the following steps:
spraying high-reflectivity liquid on the surface of the concrete;
the method comprises the following steps of (1) using an X-direction laser transmitter to move along the X direction and simultaneously transmit laser to the sprayed concrete surface, and using an X-direction laser receiver to receive corresponding reflected laser;
the Y-direction laser transmitter is used for transmitting laser to the sprayed concrete surface while moving along the Y direction, and the Y-direction laser receiver is used for receiving the corresponding reflected laser;
and using an imaging analysis system to receive the laser signals of the X-direction laser receiver and the Y-direction laser receiver and output a signal distribution diagram of the average value of the laser signals received by the X-direction laser receiver and the Y-direction laser receiver.
In some alternative embodiments, the high reflectance liquid is water or alcohol.
In some optional embodiments, the angle between the laser emitted by the X-direction laser emitter and the laser emitted by the Y-direction laser emitter to the surface of the concrete is 45-65 degrees.
In some alternative embodiments, the distance between the X-direction laser transmitter, the X-direction laser receiver, the Y-direction laser transmitter and the Y-direction laser receiver and the surface of the concrete is 40-60 cm.
The beneficial effect of this application is: the device and the method for accurately measuring the concrete surface cracks provided by the embodiment are that a reflective film is formed by spraying high-reflectivity liquid on the concrete surface, then the X-direction laser emitter and the Y-direction laser emitter which move along the X direction and the Y direction which are perpendicular to each other are used for emitting laser to the concrete surface, and the corresponding X-direction laser receiver and the corresponding Y-direction laser receiver are used for receiving laser signals reflected by the reflective film so as to analyze and identify the sizes of the cracks, so that the precision of crack detection and identification is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of an apparatus for accurately determining cracks on a concrete surface according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of an apparatus for accurately determining cracks on a concrete surface according to an embodiment of the present disclosure, which uses an X-direction laser transmitter and an X-direction laser receiver to detect concrete having a reflective water film on the surface;
FIG. 3 is a schematic diagram of an apparatus for accurately determining cracks on a concrete surface according to an embodiment of the present disclosure, which uses a Y-direction laser transmitter and a Y-direction laser receiver to detect concrete having a reflective water film on the surface;
FIG. 4 is a laser signal distribution diagram of an X-direction laser receiver output by an imaging analysis system after a concrete surface with a reflective water film is detected by the device for accurately determining concrete surface cracks provided by the embodiment of the application;
FIG. 5 is a laser signal distribution diagram of a Y-direction laser receiver output by an imaging analysis system after a concrete surface with a reflective water film is detected by the device for accurately determining concrete surface cracks provided by the embodiment of the application;
FIG. 6 is a signal distribution diagram of an average value of laser signals received by an X-direction laser receiver and a Y-direction laser receiver output by an imaging analysis system after a concrete with a reflective water film on the surface is detected by the device for accurately determining concrete surface cracks provided by the embodiment of the application.
In the figure: 100. a support frame; 110. an X-direction laser emitter; 120. an X-direction laser receiver; 130. a Y-direction laser emitter; 140. a Y-direction laser receiver; 150. a shower head; 151. spraying rodless cylinders in the X direction; 152. a fixed sliding block is sprayed in the X direction; 153. a screw rod; 154. a guide bar; 155. a spray seat; 156. a spray motor; 157. a spray hose; 160. an imaging analysis system; 170. an X-direction sliding block; 171. an X-direction rodless cylinder; 180. a Y-direction sliding block; 181. y-direction rodless cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The characteristics and properties of the apparatus and method for accurately measuring cracks on a concrete surface according to the present application will be described in further detail with reference to the following examples.
As shown in fig. 1, 2 and 3, the present embodiment provides an apparatus for accurately determining cracks on a concrete surface, which includes a supporting frame 100, an X-direction laser transmitter 110 and an X-direction laser receiver 120 movably connected to the supporting frame 100 along an X direction, a Y-direction laser transmitter 130 and a Y-direction laser receiver 140 movably connected to the supporting frame 100 along a Y direction, a spray header 150 and an imaging analysis system 160, wherein the X-direction laser transmitter 110 is used for transmitting laser to the concrete surface, and the X-direction laser receiver 120 is used for receiving laser reflected by the X-direction laser transmitter 110 after being transmitted to the concrete surface; the Y-direction laser transmitter 130 is used for transmitting laser to the surface of the concrete; the Y-direction laser receiver 140 is used for receiving laser reflected by the Y-direction laser transmitter 130 after being transmitted to the surface of the concrete; the spray header 150 is used for spraying liquid to the concrete surface; the imaging analysis system 160 is electrically connected to the X-direction laser receiver 120 and the Y-direction laser receiver 140 through data lines, and is configured to receive laser signals of the X-direction laser receiver 120 and the Y-direction laser receiver 140 and output a signal distribution diagram of an average value of the laser signals received by the X-direction laser receiver 120 and the Y-direction laser receiver 140; the X-direction is along the length of the stand 100 and the Y-direction is along the width of the stand 100.
Wherein, the two sides of the bottom of the supporting frame 100 are respectively provided with an X-direction rodless cylinder 171 extending along the length direction, namely the X direction, and an X-direction slider 170 slidably arranged on the corresponding X-direction rodless cylinder 171, and the X-direction laser transmitter 110 and the X-direction laser receiver 120 are respectively connected to the two X-direction sliders 170. Two ends of the bottom of the supporting frame 100 are respectively provided with a Y-direction rodless cylinder 181 extending along the width direction thereof, i.e., the Y direction, and a Y-direction slider 180 slidably disposed on the corresponding Y-direction rodless cylinder 181, and the Y-direction laser transmitter 130 and the Y-direction laser receiver 140 are respectively connected to the two Y-direction sliders 180.
Two sides of the top of the support frame 100 are respectively provided with an X-direction spraying rodless cylinder 151 and an X-direction spraying fixed sliding block 152 slidably arranged on the two X-direction spraying rodless cylinders 151, a screw rod 153 extending along the Y direction is connected between the two X-direction spraying fixed sliding blocks 152, two ends of the screw rod 153 are respectively and rotatably connected to the two X-direction spraying fixed sliding blocks 152, a spraying seat 155 is sleeved on the screw rod 153 through threads, a guide rod 154 parallel to the screw rod 153 is connected between the two X-direction spraying fixed sliding blocks 152, the guide rod 154 slidably penetrates through the spraying seat 155, one X-direction spraying fixed sliding block 152 is connected with a spraying motor 156 for driving the screw rod 153 to rotate, the bottom of the spraying seat 155 is connected with a spraying head 150, and the spraying head 150 is connected with a spraying hose 157. The included angle between the laser emitted to the concrete surface by the X-direction laser emitter 110 and the laser emitted to the concrete surface by the Y-direction laser emitter 130 and the concrete surface is 45 degrees, and the distance between the X-direction laser emitter 110, the X-direction laser receiver 120, the Y-direction laser emitter 130 and the Y-direction laser receiver 140 and the concrete surface is 50 cm.
The embodiment also provides a method for accurately measuring the concrete surface cracks, which is implemented by adopting the device for accurately measuring the concrete surface cracks and comprises the following steps:
specifically, a spray motor 156 is controlled to start a driving screw rod 153 to rotate to drive a spray seat 155 to move along screw rods 153 and Y directions, so that the spray head 150 connected with the bottom of the spray seat 155 is driven to move along the Y direction to spray on the surface of the concrete, then two X-direction spray rodless cylinders 151 are controlled to drive two X-direction spray fixed sliders 152 to move along the X direction, and therefore the screw rod 153, the guide rod 154, the spray seat 155 and the spray head 150 connected with the two X-direction spray fixed sliders 152 are driven to move along the X direction, the spray head 150 is driven to move along the X direction to spray, and finally the spray head 150 is controlled to move along the X direction and the Y direction to comprehensively spray on the surface of the concrete;
the X-direction laser emitter 110 is used for emitting laser to the concrete surface after watering, the X-direction laser receiver 120 is used for receiving corresponding reflected laser, and then the two X-direction rodless cylinders 171 are controlled to respectively drive the two X-direction sliders 170 to move along the X direction, so that the X-direction laser emitter 110 is controlled to emit laser to the concrete surface along the X direction, and the X-direction laser receiver 120 is used for synchronously receiving the corresponding reflected laser;
the Y-direction laser transmitter 130 is used for transmitting laser to the concrete surface after watering, the Y-direction laser receiver 140 is used for receiving corresponding reflected laser, and then the two Y-direction rodless cylinders 181 are controlled to respectively drive the two Y-direction sliding blocks 180 to move along the Y direction, so that the Y-direction laser transmitter 130 is controlled to transmit laser to the concrete surface along the Y direction, and the Y-direction laser receiver 140 is used for synchronously receiving the corresponding reflected laser;
the imaging analysis system 160 is used to receive the laser signal values of the X-direction laser receiver 120 and the Y-direction laser receiver 140 and output the signal distribution diagrams of the average values of the laser signals received by the X-direction laser receiver 120 and the Y-direction laser receiver 140, wherein the signal distribution diagram of the laser signals received by the X-direction laser receiver 120 and the Y-direction laser receiver 140 output by the imaging analysis system 160 is shown in fig. 4, the signal distribution diagram of the laser signals received by the Y-direction laser receiver 140 output by the imaging analysis system 160 is shown in fig. 5, and the signal distribution diagram of the average values of the laser signals received by the X-direction laser receiver 120 and the Y-direction laser receiver 140 output by the imaging analysis system 160 is shown in fig. 6.
In this embodiment, the signal distribution diagram is obtained by sequentially arranging the values of the laser signals received by the laser receiver at intervals of 0.1mm along the length direction and the width direction, and the maximum value of the laser signals is output when the value of the laser signals received by the laser receiver is more than 90% of the maximum value of the laser signals, that is, a threshold value is set to 90% to avoid error-induced crack misjudgment, that is, more than 90% of the maximum value of the signals received by the laser receiver is judged as a perfect plane by the system.
The device and method for accurately measuring the concrete surface cracks provided by the embodiment spray water with high reflectivity on the concrete surface, so as to form a reflective water film on the concrete surface, the light reflectivity of the water film is about 1.35, and the light reflectivity of the concrete surface is about 0.25, which can effectively avoid the problem that the detection precision is not high due to insufficient light reflectivity of the concrete surface and insufficient light intensity reception, and simultaneously, the flatness of the water film is higher than that of the diffuse reflection generated by unevenness of the concrete surface due to surface tension, and then the X-direction laser transmitter 110 and the Y-direction laser transmitter 130 which move along the X direction and the Y direction are respectively used for transmitting laser to the concrete surface, and after the X-direction laser receiver 120 and the Y-direction laser receiver 140 which move correspondingly are used for receiving the reflected laser, the imaging analysis system 160 is used for outputting a laser signal diagram obtained by arranging the average values of the laser signals received by the X-direction laser receiver 120 and the Y-direction laser receiver 140, the problem of low recognition degree of a single-axial system caused by parallel concrete cracks of incident light is solved by superposing X-direction and Y-direction laser scanning results. The device and the method for accurately measuring the concrete surface cracks can effectively reduce detection errors and improve the crack measurement precision compared with an acoustic wave and thermal imaging method.
In other alternative embodiments, the signal distribution map may be obtained by sequentially arranging the values of the laser signals received by the laser receiver at a fixed distance along the length direction and the width direction, respectively; alternatively, the fixed distance may be 0.1mm to 1 mm.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
Claims (8)
1. An apparatus for accurately determining cracks in a concrete surface, comprising:
a support frame;
an X-direction laser emitter configured to be movably connected to the support frame in an X-direction for emitting laser to a concrete surface;
the X-direction laser receiver is movably connected to the supporting frame along the X direction and used for receiving laser reflected by the X-direction laser transmitter after being transmitted to the concrete surface;
a Y-direction laser emitter configured to be movably connected to the support frame in a Y-direction for emitting laser to a concrete surface;
the Y-direction laser receiver is movably connected to the supporting frame along the Y direction and used for receiving laser reflected by the Y-direction laser transmitter after being transmitted to the concrete surface;
the spray header is used for spraying liquid to the concrete surface;
and the imaging analysis system is used for receiving the laser signals received by the X-direction laser receiver and the Y-direction laser receiver and outputting a signal distribution diagram of the average value of the laser signals received by the X-direction laser receiver and the Y-direction laser receiver.
2. The apparatus according to claim 1, wherein the support frame is provided with two X-directional sliders arranged in parallel and an X-directional driving device for driving the two X-directional sliders to move along the X direction, and the X-directional laser transmitter and the X-directional laser receiver are respectively connected to the two X-directional sliders.
3. The apparatus according to claim 1, wherein the support frame is provided with two Y-direction sliders arranged in parallel and a Y-direction driving device for driving the two Y-direction sliders to move along the Y-direction, and the Y-direction laser transmitter and the Y-direction laser receiver are respectively connected to the two Y-direction sliders.
4. The apparatus of claim 1, wherein the spray head is configured to be movably coupled to the support frame in the X-direction and the Y-direction.
5. A method for accurately determining concrete surface cracks is characterized by comprising the following steps:
spraying high-reflectivity liquid on the surface of the concrete;
the method comprises the following steps of (1) using an X-direction laser transmitter to move along the X direction and simultaneously transmit laser to the sprayed concrete surface, and using an X-direction laser receiver to receive corresponding reflected laser;
the Y-direction laser transmitter is used for transmitting laser to the sprayed concrete surface while moving along the Y direction, and the Y-direction laser receiver is used for receiving the corresponding reflected laser;
and using an imaging analysis system to receive the laser signals received by the X-direction laser receiver and the Y-direction laser receiver and output a signal distribution diagram of the average value of the laser signals received by the X-direction laser receiver and the Y-direction laser receiver.
6. The method for accurately determining the cracks on the concrete surface according to claim 5, wherein the high-reflectivity liquid is water or alcohol.
7. The method for accurately determining the cracks on the concrete surface according to claim 5, wherein the included angle between the laser emitted by the X-direction laser emitter and the laser emitted by the Y-direction laser emitter to the concrete surface and the concrete surface is 45-65 degrees.
8. The method for accurately determining the cracks on the concrete surface according to claim 5, wherein the distance between the X-direction laser transmitter, the X-direction laser receiver, the Y-direction laser transmitter and the Y-direction laser receiver and the concrete surface is 40-60 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110802117.1A CN113588657A (en) | 2021-07-15 | 2021-07-15 | Device and method for accurately measuring concrete surface cracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110802117.1A CN113588657A (en) | 2021-07-15 | 2021-07-15 | Device and method for accurately measuring concrete surface cracks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113588657A true CN113588657A (en) | 2021-11-02 |
Family
ID=78247552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110802117.1A Pending CN113588657A (en) | 2021-07-15 | 2021-07-15 | Device and method for accurately measuring concrete surface cracks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113588657A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021592A (en) * | 2021-04-19 | 2021-06-25 | 四川兴事发门窗有限责任公司 | Production process method of wood fireproof door core board |
| CN116699113A (en) * | 2023-06-27 | 2023-09-05 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete crack detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63169542A (en) * | 1987-01-07 | 1988-07-13 | Tokyu Constr Co Ltd | Inspecting method for surface abnormality of concrete structure |
| JPH10289852A (en) * | 1997-04-14 | 1998-10-27 | Toray Ind Inc | Method for measuring clearance and device therefor and exposing method and device therefor |
| CN101701919A (en) * | 2009-11-20 | 2010-05-05 | 长安大学 | Pavement crack detection system based on image and detection method thereof |
| CN102778461A (en) * | 2012-08-21 | 2012-11-14 | 深圳市华星光电技术有限公司 | Detection method and detection device of glass substrate in liquid crystal display |
| RU2012147712A (en) * | 2012-11-09 | 2014-05-20 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский государственный университет нефти и газа имени И.М. Губкина" | METHOD FOR DIAGNOSTIC OF DEFECTS ON METAL SURFACES |
| JP2016008871A (en) * | 2014-06-24 | 2016-01-18 | 公益財団法人鉄道総合技術研究所 | Spray surface monitoring method, and spray surface monitoring system |
| CN112912718A (en) * | 2018-10-25 | 2021-06-04 | 耐克斯特森斯有限责任公司 | Device and method for inspecting a reflective surface |
-
2021
- 2021-07-15 CN CN202110802117.1A patent/CN113588657A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63169542A (en) * | 1987-01-07 | 1988-07-13 | Tokyu Constr Co Ltd | Inspecting method for surface abnormality of concrete structure |
| JPH10289852A (en) * | 1997-04-14 | 1998-10-27 | Toray Ind Inc | Method for measuring clearance and device therefor and exposing method and device therefor |
| CN101701919A (en) * | 2009-11-20 | 2010-05-05 | 长安大学 | Pavement crack detection system based on image and detection method thereof |
| CN102778461A (en) * | 2012-08-21 | 2012-11-14 | 深圳市华星光电技术有限公司 | Detection method and detection device of glass substrate in liquid crystal display |
| RU2012147712A (en) * | 2012-11-09 | 2014-05-20 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский государственный университет нефти и газа имени И.М. Губкина" | METHOD FOR DIAGNOSTIC OF DEFECTS ON METAL SURFACES |
| JP2016008871A (en) * | 2014-06-24 | 2016-01-18 | 公益財団法人鉄道総合技術研究所 | Spray surface monitoring method, and spray surface monitoring system |
| CN112912718A (en) * | 2018-10-25 | 2021-06-04 | 耐克斯特森斯有限责任公司 | Device and method for inspecting a reflective surface |
Non-Patent Citations (1)
| Title |
|---|
| 孟庆林: "《建筑表面被动蒸发冷却》", 28 February 2001, 华南理工大学出版社, pages: 29 - 37 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021592A (en) * | 2021-04-19 | 2021-06-25 | 四川兴事发门窗有限责任公司 | Production process method of wood fireproof door core board |
| CN113021592B (en) * | 2021-04-19 | 2022-11-25 | 四川兴事发门窗有限责任公司 | Production process method of wood fireproof door core plate |
| CN116699113A (en) * | 2023-06-27 | 2023-09-05 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete crack detection device |
| CN116699113B (en) * | 2023-06-27 | 2024-04-05 | 中国水利水电第十二工程局有限公司 | Basalt fiber concrete crack detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113588657A (en) | Device and method for accurately measuring concrete surface cracks | |
| CN101175986B (en) | Glass inspection systems and methods for using same | |
| CN108956761B (en) | Steel plate full-coverage ultrasonic detection device and method | |
| CN108801914B (en) | Method and system for detecting forming defects of multi-groove profile plate | |
| WO2019029524A1 (en) | Shear wave oblique probe reflected/diffracted/deformed wave detection method | |
| CN109765295B (en) | Laser ultrasonic rapid detection method and device for concrete surface microcracks | |
| CN107271370A (en) | A kind of laser ultrasonic detection system and its method detected based on material internal defect | |
| CN101135673A (en) | Method for the nondestructive material testing of highly pure polycrystalline silicon | |
| CN107561091A (en) | A kind of detecting system and detection method of oblique fire formula solid wood board face crack | |
| CN106123789A (en) | The identification device of a kind of wooden boards burr and recognition methods | |
| US7204147B2 (en) | Ultrasonic inspection method for weld zone | |
| CN204504169U (en) | A kind of device utilizing laser detection secondary cooling area for continuous casting nozzle operation situation | |
| CN106706759B (en) | Method for evaluating defects of welding joint of P92 steel main steam pipeline of ultra-supercritical generator set | |
| CN108802202A (en) | A kind of ultrasonic wave tandem probe apparatus and method | |
| KR100975330B1 (en) | Multi Channel Ultrasonic Welding Inspection System and Control Method | |
| KR101351231B1 (en) | Method and Apparatus For Spectroscopic Characterization Of Samples Using A Laser-Ultrasound System | |
| CN105510442A (en) | Dynamic linkage focus detection method adopting multiple phased array probes | |
| CN203069556U (en) | Ultrasonic detection device for highway steel bridge | |
| CN1077287A (en) | Ultrasonic detection method for concrete piles | |
| CN110907537A (en) | A-scanning nondestructive testing method for R area of composite culvert casing and tool medium | |
| CN203117167U (en) | Ultrasonic detector for road steel bridge | |
| CN114280156B (en) | Sub-surface crack length and depth measuring method based on laser ultrasound | |
| KR101867704B1 (en) | Ultrasonic testing apparatus | |
| CN104722735A (en) | Detecting device of nozzle operating condition in continuous casting secondary cooling area with laser | |
| CN113203373B (en) | Method for detecting internal size of mortise and tenon joint based on ultrasonic waves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |