CN110849306A - Crack dislocation displacement measurement system and measurement method - Google Patents
Crack dislocation displacement measurement system and measurement method Download PDFInfo
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- CN110849306A CN110849306A CN201911273373.5A CN201911273373A CN110849306A CN 110849306 A CN110849306 A CN 110849306A CN 201911273373 A CN201911273373 A CN 201911273373A CN 110849306 A CN110849306 A CN 110849306A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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Abstract
The invention relates to the technical field of engineering detection, in particular to a crack dislocation displacement measuring system and a crack dislocation displacement measuring method, which comprise a first fixing component fixedly arranged on a first monitoring surface, a stay wire type crack meter arranged on the first fixing component, a pulley rotatably arranged on the first fixing component and a second fixing component fixedly arranged on a second monitoring surface; the pull-wire type crack meter comprises a body, a flexible pull wire, a sensor and an information module, wherein one end of the flexible pull wire is connected with the body in a sliding mode, the sensor is arranged in the body and used for monitoring the moving distance of the flexible pull wire, and the information module is used for performing data interaction and parameter setting with the outside. The fracture dislocation displacement measuring system can monitor dislocation displacement of a monitored object in the direction parallel to the fracture surface.
Description
Technical Field
The invention relates to the technical field of engineering detection, in particular to a crack dislocation displacement measuring system and a measuring method.
Background
At present, a guyed crack meter is the most commonly used device for measuring the crack displacement, and is mainly used for measuring the dynamic and static strain of a structure and a component and the crack, and measuring the crack expansion amount when the crack appears. The device has the characteristics of small volume, simple connection, easy installation, convenient operation and the like, and becomes a commonly applied technical device.
However, after cracks are generated in most dangerous rocks, retaining walls, buildings, roads and artificial slopes, the monitoring object is dislocated and displaced in a direction parallel to the crack surface under the influence of various factors such as internal stress release, external pressure change or earthquake disturbance. Especially, when the dislocation displacement reaches a certain degree, serious disasters such as structural fracture, dangerous rock falling, slope or retaining wall collapse and the like can be generated. The common crack meter can only measure the variation of the crack opening degree in the direction perpendicular to the crack surface, but cannot measure the dislocation displacement of the monitored object in the direction parallel to the crack surface, so that the measurement result has limitation.
Disclosure of Invention
In order to overcome the defects of the prior art, the first object of the invention is to provide a fracture dislocation displacement measuring system, which can monitor the dislocation displacement of a monitored object in the direction parallel to the fracture surface.
The second purpose of the invention is to provide a method for measuring the fracture dislocation displacement, which can effectively monitor the fracture dislocation displacement for a long time.
The first purpose of the invention is realized by the following technical scheme:
a crack dislocation displacement measurement system comprises a first fixing component fixedly arranged on a first monitoring surface, a stay wire type crack meter arranged on the first fixing component, a pulley rotatably arranged on the first fixing component and a second fixing component fixedly arranged on a second monitoring surface;
the pull-wire type crack meter comprises a body, a flexible pull wire, a sensor and an information module, wherein one end of the flexible pull wire is connected with the body in a sliding mode, the sensor is arranged in the body and used for monitoring the moving distance of the flexible pull wire, and the information module is used for performing data interaction and parameter setting with the outside.
Further, the information module comprises an information acquisition module for acquiring flexible stay wire displacement information monitored by the sensor, a main control unit for setting parameters and storing data information acquired by the information acquisition module, a communication module for sending the data information acquired by the information acquisition module to the main control unit, and a power module for controlling the sensor, the information acquisition module, the main control unit and the communication module to start or stop working.
Furthermore, first fixed subassembly is including locating the first bracing piece on the first monitoring face, locate the first monitoring face and be located the second bracing piece between first bracing piece and the second monitoring face and be used for being fixed in first retaining member and second retaining member on the first monitoring face with first bracing piece and second bracing piece respectively, the one end that the second retaining member was kept away from to the second bracing piece is to the direction slope that is close to the second monitoring face and stride across the crack and be located one side of second monitoring face, the stay-supported crack meter is fixed to be located on the first bracing piece, the pulley is located on the second bracing piece.
Further, first retaining member is including fixed first fixing base of locating first bracing piece and keeping away from stay-wire formula crack meter one end and the first inflation screw with first fixing base sliding connection, the second retaining member is including fixed second fixing base of locating second bracing piece and keeping away from stay-wire formula crack meter one end and the second inflation screw with second fixing base sliding connection.
Further, the first fixing component further comprises a connecting rod, and two ends of the connecting rod are fixedly connected with the first supporting rod and the second supporting rod respectively.
Further, first fixing base, first bracing piece, connecting rod, second bracing piece and second fixing base integrated into one piece.
Furthermore, the second fixing assembly comprises a fixing piece, a fixing screw connected with the fixing piece in a sliding mode and a connecting ring arranged on one side, far away from the second monitoring surface, of the fixing piece, and the flexible pull wire is connected with the connecting ring.
Further, the flexible stay wire is a steel stay wire.
The second purpose of the invention is realized by the following technical scheme:
a crack dislocation displacement measurement method utilizes the crack dislocation displacement measurement system to carry out measurement;
the measuring method comprises the following steps:
firstly, setting parameters of a monitoring time interval, a data sending time interval and a displacement threshold of the stay wire type crack meter through an information module, and storing the parameters in the information module;
step two, receiving initial displacement data of the flexible stay wire monitored by a sensor through an information module to obtain initial crack dislocation measurement data, and storing the initial crack dislocation measurement data in the information module;
step three, the information module receives displacement data generated by the flexible stay wire at the current measurement time and monitored by a sensor according to a preset measurement time interval, and then obtains crack dislocation measurement data at the current measurement time, and the information module synchronously stores the crack dislocation measurement data at the current measurement time;
the information module uploads the current measuring time and the crack dislocation measuring data of the current measuring time to a server;
step five, the information module compares the fracture dislocation measurement data of the current measurement time with the initial fracture dislocation measurement data, and calculates to obtain the fracture dislocation displacement change rate;
step six, judging the threshold value of the crack dislocation displacement change rate according to the preset displacement threshold value; when the change rate of the dislocation displacement of the crack is judged to be smaller than the set threshold value, finishing monitoring, and waiting for the next preset measurement time to start the monitoring step again; otherwise, returning to the operation of the third step.
The invention has the beneficial effects that:
(1) the adopted measuring system has the advantages of simple structure, convenient installation and layout, small operation difficulty and low investment cost.
(2) The adopted measuring system has reasonable design and good use effect, visually reflects the dislocation displacement condition of the monitored object in the direction parallel to the crack surface, and overcomes the defect that the traditional crack measuring device can only measure the deformation in the direction vertical to the crack surface.
(3) The adopted measuring method has simple steps, reasonable design, convenient realization and good use effect, can simply and conveniently acquire the crack dislocation displacement information of the monitoring objects at different measuring time, synchronously stores the crack dislocation displacement information according to different measuring time, and is convenient for later inquiry and use; and the data of the change rate is automatically acquired and the threshold value is judged by comparing the data with the measurement information of different measurement time, so that the monitoring reliability is improved.
In conclusion, the invention has the advantages of reasonable design, simple and convenient monitoring and good use effect, can quickly and simply complete the real-time monitoring of the fracture dislocation displacement information of the monitored object, and has intuitive and reliable monitoring result.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a side view of the measurement system of the present invention after installation;
FIG. 2 is a top view of the measurement system of the present invention after installation;
fig. 3 is a flow chart of a measurement method of the present invention.
Description of reference numerals: 10. a first monitoring surface; 11. a second monitoring surface; 20. a first fixed component; 21. a first support bar; 22. a second support bar; 23. a first locking member; 231. a first fixed seat; 232. a first fixing hole; 24. a second locking member; 241. a second fixed seat; 242. a second fixing hole; 25. a connecting rod; 30. a stay wire type crack meter; 31. a body; 32. a flexible pull wire; 40. a pulley; 50. a second fixed component; 51. a fixing member; 52. a connecting ring; 53. and a third fixing hole.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Example 1
A crack dislocation displacement measuring system is shown in fig. 1-2, and comprises a first fixing component 20 fixedly arranged on a first monitoring surface 10, a stay wire type crack meter 30 arranged on the first fixing component 20, a pulley 40 rotatably arranged on the first fixing component 20, and a second fixing component 50 fixedly arranged on a second monitoring surface 11.
The guyed crack meter 30 includes body 31, one end and body 31 sliding connection's flexible 32 of acting as go-between, locate the body 31 in be used for monitoring flexible 32 of acting as go-between displacement's sensor and be used for carrying out the information module of data interaction and parameter setting with the external world, flexible 32 of acting as go-between is around locating on the pulley 40, just flexible 32 of acting as go-between keeps away from the one end of body 31 and is connected with the fixed subassembly 50 of second, is located the perpendicular second monitoring face 11 of flexible 32 of acting as go-between the fixed subassembly 50 of pulley 40 and second.
Specifically, after dangerous rock, retaining wall, building (structure), road and artifical slope produced the crack, the crack both sides formed the comparatively stable part of structure and the unstable part of structure respectively, first monitoring face 10 is the plane of stable part of structure, second monitoring face 11 is the plane of unstable part of structure.
According to the invention, the first fixing component 20 is arranged on the first monitoring surface 10, the pull-wire type crack meter 30 and the pulley 40 are arranged on the first fixing component 20, the flexible pull wire 32 of the pull-wire type crack meter 30 is wound around the pulley 40 and fixed on the second fixing component 50 on the second monitoring surface 11, the flexible pull wire 32 between the pulley 40 and the second fixing component 50 is perpendicular to the second monitoring surface 11, the flexible pull wire 32 between the pulley 40 and the second fixing component 50 is parallel to the crack surface, when the second monitoring surface 11 moves in a dislocation direction towards the parallel crack surface, the second monitoring surface 11 can drive the second fixing component 50 and the flexible pull wire 32 to move, the flexible pull wire 32 on the body 31 of the pull-wire type crack meter 30 is displaced, and the displacement data of the flexible pull wire 32 monitored by the sensor and the displacement data of the information module are collected and received, so that the dislocation displacement of the monitoring surface parallel to the crack surface is measured and monitored by the sensor The defect that the traditional crack measuring device can only measure the deformation in the direction vertical to the crack surface is overcome.
Specifically, the height of the outlet of the stay wire type crack meter 30 is equal to the height of the pulley 40, so that the flexible stay wire 32 between the body 31 and the pulley 40 is in a horizontal state, and the flexible stay wires 32 at the two ends of the pulley 40 are at a right angle of 90 °.
Further, the information module includes the information acquisition module that is used for the flexible 32 displacement information of acting as go-between that the collection sensor monitored, the main control unit that is used for setting up the parameter and stores the data message that the information acquisition module was gathered, the communication module that is used for sending the data message that the information acquisition module was gathered to the main control unit and be used for controlling sensor, information acquisition module, main control unit and communication module and start or stop work's power module.
By arranging the information module, the measuring system can realize real-time monitoring, data collection and data transmission of the dislocation displacement parallel to the fracture surface, can also simply and conveniently acquire the fracture dislocation displacement information of monitoring objects at different measuring times, synchronously stores the fracture dislocation displacement information according to different measuring times, is convenient for later-stage query and use, and has visual and reliable monitoring results.
Specifically, the flexible stay wire 32 is a steel stay wire, which has high strength and is not easy to break or deform, and is beneficial to improving the accuracy of the measurement result.
Further, the first fixing component 20 includes a first supporting rod 21 disposed on the first monitoring surface 10, a second supporting rod 22 disposed on the first monitoring surface 10 and located between the first supporting rod 21 and the second monitoring surface 11, and a first locking member 23 and a second locking member 24 respectively used for fixing the first supporting rod 21 and the second supporting rod 22 on the first monitoring surface 10, one end of the second supporting rod 22 away from the second locking member 24 is inclined to the direction close to the second monitoring surface 11 and crosses the crack to be located on one side of the second monitoring surface 11, the stay wire type crack meter 30 is fixedly disposed on the first supporting rod 21, and the pulley 40 is disposed on the second supporting rod 22.
The second support rod 22 disposed obliquely will not contact or rub the flexible pull wire 32, so as to prevent the support rod from obstructing the movement of the flexible pull wire 32 and prolong the service life of the flexible pull wire 32.
Specifically, the first supporting rod 21 is perpendicular to the first monitoring surface 10, and the first supporting rod 21 with a short length can be vertically arranged to fix the stay-supported crack meter 30 at a proper height from the first monitoring surface 10, so that the use of materials is reduced, and the cost is saved.
Further, the first locking member 23 includes a first fixing seat 231 fixedly disposed at an end of the first supporting rod 21 away from the pull-wire type crack meter 30 and a first expansion screw (not shown) slidably connected to the first fixing seat 231, and the second locking member 24 includes a second fixing seat 241 fixedly disposed at an end of the second supporting rod 22 away from the pull-wire type crack meter 30 and a second expansion screw (not shown) slidably connected to the second fixing seat 241.
Specifically, a plurality of first fixing holes 232 are arranged at intervals on the peripheral edge of the first fixing seat 231, the first expansion screws are arranged in the first fixing holes 232, and the number of the first expansion screws corresponds to the number of the first fixing holes 232. A plurality of second fixing holes 242 are formed in the peripheral edge of the second fixing seat 241 at intervals, second expansion screws are arranged in the second fixing holes 242, and the number of the second expansion screws corresponds to the number of the second fixing holes 242.
According to the invention, the first fixing seat 231 and the second fixing seat 241 are fixed by the first expansion screw and the second expansion screw, so that the connection stability of the first fixing seat 231 and the second fixing seat 241 with the first monitoring surface 10 is improved, the support stability of the first supporting rod 21 and the second supporting rod 22 to the stay wire type crack meter 30 and the pulley 40 is further improved, and the inaccurate measurement result caused by the shaking of the first supporting rod 21 and the second supporting rod 22 during measurement is avoided.
Further, the first fixing assembly 20 further includes a connecting rod 25 having two ends respectively fixedly connected to the first supporting rod 21 and the second supporting rod 22. The arrangement of the connecting rod 25 further improves the supporting strength of the first supporting rod 21 and the second supporting rod 22, and avoids the first supporting rod 21 and the second supporting rod 22 from deforming, on the other hand, the connecting rod 25 connects the first supporting rod 21 and the second supporting rod 22 together, so that the positions of the first supporting rod 21 and the second supporting rod 22 are relatively fixed, and further, when a worker installs the measuring system of the present invention, the worker does not need to respectively determine the positions of the first supporting rod 21 and the second supporting rod 22 and respectively install the first supporting rod 21 and the second supporting rod 22, which is beneficial to improving the installation efficiency of the measuring system of the present invention.
Further, in order to further improve the strength of the first support rod 21 and the second support rod 22, the first fixing seat 231, the first support rod 21, the connection rod 25, the second support rod 22 and the second fixing seat 241 are integrally formed.
Further, the second fixing assembly 50 includes a fixing member 51, a fixing screw (not shown) slidably connected to the fixing member 51, and a connecting ring 52 disposed on a side of the fixing member 51 away from the second monitoring surface 11, and the flexible wire 32 is connected to the connecting ring 52. Specifically, a plurality of third fixing holes 53 are formed in the peripheral edge of the fixing member 51 at intervals, the fixing screws are arranged in the third fixing holes 53, and the number of the fixing screws corresponds to the number of the third fixing holes 53. The fixing screw is a third expansion screw, which is beneficial to improving the connection stability of the fixing member 51 and the second monitoring surface 11.
Example 2
A fracture dislocation displacement measuring method, as shown in fig. 3, using the fracture dislocation displacement measuring system described in embodiment 1.
The measuring method comprises the following steps:
firstly, setting parameters of a monitoring time interval, a data sending time interval and a displacement threshold of the stay wire type crack meter through a main control unit of an information module, and storing the parameters in the main control unit of the information module;
acquiring and receiving initial displacement data of the flexible stay wire monitored by a sensor through an information acquisition module of the information module to obtain initial crack dislocation measurement data, and sending the initial crack dislocation measurement data to a main control unit of the information module through a communication module for storage;
step three, an information acquisition module of the information module receives displacement data generated by flexible stay wires at the current measurement time and monitored by a sensor according to a preset measurement time interval to obtain fracture dislocation measurement data at the current measurement time, and a main control unit of the information module synchronously stores the fracture dislocation measurement data at the current measurement time;
the information module uploads the current measuring time and the crack dislocation measuring data of the current measuring time to a server through a communication module, and the current measuring time and the crack dislocation measuring data of the current measuring time can be directly displayed through a display screen of the server;
fifthly, the main control unit of the information module compares the fracture dislocation measurement data of the current measurement time with the initial fracture dislocation measurement data, and calculates out the fracture dislocation displacement change rate;
step six, judging the threshold value of the crack dislocation displacement change rate according to the preset displacement threshold value; when the change rate of the dislocation displacement of the crack is judged to be smaller than the set threshold value, finishing monitoring, and waiting for the next preset measurement time to start the monitoring step again; otherwise, returning to the operation of the third step.
The measuring method adopted by the invention has the advantages of simple steps, reasonable design, convenient realization and good use effect, can simply and conveniently acquire the crack dislocation displacement information of the monitoring objects at different measuring time, synchronously stores the crack dislocation displacement information according to different measuring time, and is convenient for later-stage query and use; and the data of the change rate is automatically acquired and the threshold value is judged by comparing the data with the measurement information of different measurement time, so that the monitoring reliability is improved.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A crack dislocation displacement measurement system is characterized in that: the device comprises a first fixing component fixedly arranged on a first monitoring surface, a stay wire type crack meter arranged on the first fixing component, a pulley rotatably arranged on the first fixing component and a second fixing component fixedly arranged on a second monitoring surface;
the pull-wire type crack meter comprises a body, a flexible pull wire, a sensor and an information module, wherein one end of the flexible pull wire is connected with the body in a sliding mode, the sensor is arranged in the body and used for monitoring the moving distance of the flexible pull wire, and the information module is used for performing data interaction and parameter setting with the outside.
2. A fracture dislocation displacement measuring system as claimed in claim 1, wherein: the information module comprises an information acquisition module, a main control unit, a communication module and a power module, wherein the information acquisition module is used for acquiring displacement information of the flexible stay wire monitored by the sensor, the main control unit is used for setting parameters and storing data information acquired by the information acquisition module, the communication module is used for sending the data information acquired by the information acquisition module to the main control unit, and the power module is used for controlling the sensor, the information acquisition module, the main control unit and the communication module to start or stop working.
3. A fracture dislocation displacement measuring system as claimed in claim 1, wherein: first fixed subassembly is including locating first bracing piece on the first monitoring face, locate first monitoring face and be located the second bracing piece between first bracing piece and the second monitoring face and be used for being fixed in first retaining member and second retaining member on the first monitoring face with first bracing piece and second bracing piece respectively, the one end that the second retaining member was kept away from to the second bracing piece is to the direction slope that is close to the second monitoring face and stride the crack and be located one side of second monitoring face, the fixed locating on first bracing piece of stay wire formula crack meter, the pulley is located on the second bracing piece.
4. A fracture dislocation displacement measuring system as claimed in claim 3, wherein: first retaining member is including fixed first fixing base of locating first bracing piece and keeping away from stay-supported crack meter one end and the first inflation screw with first fixing base sliding connection, second retaining member is including fixed second bracing piece of locating keep away from the second fixing base of stay-supported crack meter one end and the second inflation screw with second fixing base sliding connection.
5. A fracture dislocation displacement measurement system according to claim 4, wherein: the first fixing component further comprises a connecting rod, wherein two ends of the connecting rod are fixedly connected with the first supporting rod and the second supporting rod respectively.
6. A fracture dislocation displacement measurement system according to claim 5, wherein: the first fixing seat, the first supporting rod, the connecting rod, the second supporting rod and the second fixing seat are integrally formed.
7. A fracture dislocation displacement measuring system as claimed in claim 1, wherein: the second fixing assembly comprises a fixing piece, a fixing screw in sliding connection with the fixing piece and a connecting ring arranged on one side, far away from the second monitoring surface, of the fixing piece, and the flexible pull wire is connected with the connecting ring.
8. A fracture dislocation displacement measuring system as claimed in claim 1, wherein: the flexible stay wire is a steel stay wire.
9. A crack dislocation displacement measurement method is characterized in that: the measurement method is used for measuring by using the fracture dislocation displacement measurement system of any one of claims 1-8;
the measuring method comprises the following steps:
firstly, setting parameters of a monitoring time interval, a data sending time interval and a displacement threshold of the stay wire type crack meter through an information module, and storing the parameters in the information module;
step two, receiving initial displacement data of the flexible stay wire monitored by a sensor through an information module to obtain initial crack dislocation measurement data, and storing the initial crack dislocation measurement data in the information module;
step three, the information module receives displacement data generated by the flexible stay wire at the current measurement time and monitored by a sensor according to a preset measurement time interval, and then obtains crack dislocation measurement data at the current measurement time, and the information module synchronously stores the crack dislocation measurement data at the current measurement time;
the information module uploads the current measuring time and the crack dislocation measuring data of the current measuring time to a server;
step five, the information module compares the fracture dislocation measurement data of the current measurement time with the initial fracture dislocation measurement data, and calculates to obtain the fracture dislocation displacement change rate;
step six, judging the threshold value of the crack dislocation displacement change rate according to the preset displacement threshold value; when the change rate of the dislocation displacement of the crack is judged to be smaller than the set threshold value, finishing monitoring, and waiting for the next preset measurement time to start the monitoring step again; otherwise, returning to the operation of the third step.
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| CN201911273373.5A CN110849306A (en) | 2019-12-12 | 2019-12-12 | Crack dislocation displacement measurement system and measurement method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293807A (en) * | 2021-12-30 | 2022-04-08 | 中铁十四局集团有限公司 | Leakage stopping method for basement concrete dynamic cracks |
| CN114353670A (en) * | 2022-01-07 | 2022-04-15 | 深圳市北斗云信息技术有限公司 | Method for measuring cracks through visual multi-parameter intelligent crack meter |
| CN114705146A (en) * | 2022-03-17 | 2022-07-05 | 国网四川省电力公司 | Crack monitoring devices with precision is adjusted |
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2019
- 2019-12-12 CN CN201911273373.5A patent/CN110849306A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293807A (en) * | 2021-12-30 | 2022-04-08 | 中铁十四局集团有限公司 | Leakage stopping method for basement concrete dynamic cracks |
| CN114353670A (en) * | 2022-01-07 | 2022-04-15 | 深圳市北斗云信息技术有限公司 | Method for measuring cracks through visual multi-parameter intelligent crack meter |
| CN114705146A (en) * | 2022-03-17 | 2022-07-05 | 国网四川省电力公司 | Crack monitoring devices with precision is adjusted |
| CN114705146B (en) * | 2022-03-17 | 2023-06-30 | 国网四川省电力公司 | Crack monitoring device with precision adjustment |
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