CN115060792A - Ultra-high-definition detection probe, data acquisition system and pipeline detection device - Google Patents

Ultra-high-definition detection probe, data acquisition system and pipeline detection device Download PDF

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Publication number
CN115060792A
CN115060792A CN202210654308.2A CN202210654308A CN115060792A CN 115060792 A CN115060792 A CN 115060792A CN 202210654308 A CN202210654308 A CN 202210654308A CN 115060792 A CN115060792 A CN 115060792A
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data acquisition
data
detection
probe
sensor
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赵春田
李红梅
连军营
姜长林
解增勇
张仕忠
张京华
张�杰
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Weihai Huateng Ocean Engineering Technology Co ltd
Yichang Huateng Pipeline Engineering Co ltd
Sichuan University
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Weihai Huateng Ocean Engineering Technology Co ltd
Yichang Huateng Pipeline Engineering Co ltd
Sichuan University
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Priority to CN202210654308.2A priority Critical patent/CN115060792A/en
Publication of CN115060792A publication Critical patent/CN115060792A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/12Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

The invention discloses an ultra-high-definition detection probe, a data acquisition system and a pipeline detection device. The probe comprises a probe shell and a PCB (printed circuit board) substrate, wherein the PCB substrate is arranged in the probe shell, at least one sensor array group is arranged on the PCB substrate, and a reasonable staggered arrangement layout is formed in a sensor array group mode so as to eliminate the limitation of the physical size of the sensor and improve the density of data acquisition points. The data acquisition system comprises at least one detection probe, and when a plurality of conformal probes are spliced and used jointly, the data acquisition system can allow relative movement among the probes on the basis of ensuring the density of sampling points and improving the detection coverage and the detection efficiency. The ultrahigh-definition parameter distribution cloud image generation method is applied to pipeline detection, data with ultrahigh sampling point density can be acquired in the process that the probe axially runs along a pipeline, an ultrahigh-definition parameter distribution cloud image can be generated after data processing is completed, the detection accuracy and precision are improved, and ultrahigh-definition inversion imaging can be generated when the ultrahigh-definition parameter distribution cloud image generation method is used for detecting defects or stress.

Description

Ultra-high definition detection probe, data acquisition system and pipeline detection device
Technical Field
The invention relates to the technical field of nondestructive testing and pipeline testing, in particular to an ultra-high-definition testing probe, a data acquisition system and a pipeline testing device.
Background
When detecting and collecting data, it is often desired to increase the density of data collecting points, so as to achieve the purpose of improving the definition and precision of detection. For example, in the detection of pipe defects and stress anomalies, a pipe inspection robot (PIG) moves along the axis of the pipe in one direction with the medium in the pipe forward, and the axial data acquisition point density depends on the moving speed and sampling frequency of the PIG, but the circumferential data acquisition point density depends on the tightness of the sensor arrangement in or between probes. Conventional probes or data acquisition sensors are typically arranged in a circumferential row or line, where the minimum circumferential spacing between data acquisition points in the test is determined by the physical dimensions of the data acquisition sensor. To improve the clarity and accuracy of detection, i.e., to improve the density of data acquisition points, the physical size of the sensor must be reduced. In a certain period, the size of the sensor element becomes smaller and smaller due to successful miniaturization of the sensor element, but the physical size of the sensor element cannot be reduced infinitely, so that the density of detected data acquisition points is limited due to the limitation of the physical size of the sensor element, and the improvement of the detection imaging definition and the detection precision are directly influenced.
Disclosure of Invention
The invention aims to provide an ultra-high-definition detection probe, a data acquisition system and a pipeline detection device aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the ultrahigh-definition detection probe comprises a probe shell, a PCB (printed circuit board) substrate and at least one sensor array group, wherein the PCB substrate is arranged in the probe shell, all the sensor array groups are arranged on one side of two surfaces of the PCB substrate, all the sensor array groups are in consistent staggered array arrangement, and all the sensor array groups are electrically connected with the PCB substrate.
Further, the sensor array group comprises a data acquisition module, a data receiving and processing module and a data communication and transmission module, the data acquisition module comprises a plurality of data acquisition sensors arranged in an array, each data acquisition sensor comprises a detection surface and an installation surface, each data acquisition sensor passes through the installation surface and is installed on the detection surface of the PCB substrate, the PCB substrate is further provided with the data receiving and processing module and the data communication and transmission module, and the data acquisition module, the data receiving and processing module and the data communication and transmission module are electrically connected with the PCB substrate.
Furthermore, the data acquisition modules in each sensor array group are arranged in a staggered array arrangement mode by a plurality of data acquisition sensors, the staggered array arrangement mode comprises a mode of presenting in any one or more of parallelogram, S-shaped, trapezoid or triangle and the like which can be arranged conformally, two adjacent sensor array groups and the data acquisition sensors therein are arranged conformally in a staggered mode, and the consistency of integral staggered arrangement is kept.
Further, the data acquisition sensor comprises a magnetic sensor.
Furthermore, including fixing in the probe shell base, probe lid and the waterproof sealing joint of cable of PCB base plate, probe lid detachable with base sealing connection, be provided with on the base with the joint hole that the waterproof sealing joint of cable corresponds, data communication and transmission module's data output port with the waterproof sealing joint of cable is connected and is used for data transmission.
Furthermore, the probe shell material comprises any one or combination of ferromagnetic materials or non-ferromagnetic materials such as silicon steel sheets, ferrites, stainless steel, ceramics, aluminum alloys, titanium alloys and plastics, and the wear-resistant strip is arranged on one surface of the probe box cover contacting the detection target.
The second purpose of the invention is to provide a data acquisition system, which comprises a data storage and at least one detection probe, wherein two adjacent detection probes are arranged conformally, so that the data acquisition sensors in the two adjacent detection probes are still kept in overall consistent staggered array arrangement, the data storage is composed of a multi-channel high-speed data communication interface, a data storage control module and a data storage unit, and the multi-channel high-speed data communication interface is electrically connected with a data output port of the detection probe.
Furthermore, the data acquisition sensors in two adjacent detection probes acquire data corresponding to physical parameters on spatially staggered array acquisition points at a certain moment in the moving process of the detection probes, and the influence of ultrahigh data acquisition density, which is obtained by replacing the spatial distribution of the data acquisition sensors in the array distribution, on the detection precision is eliminated by considering the compensation of different arrangement position differences of each data acquisition sensor during data processing and the spatial distribution imaging of the acquired data, so that the ultrahigh detection precision corresponding to the ultrahigh data acquisition density is maintained.
Further, a gap is allowed to be designed and arranged between two adjacent conformal detection probes, so that relative movement (namely, transverse or circumferential extrusion and a direction perpendicular to a plane formed by the movement direction and the normal direction of the contact surface) in a direction perpendicular to the gap arrangement can exist between the adjacent detection probes, so that the passing caliber is allowed or adapted to be reduced caused by changes or abnormalities such as the diameter of a pipeline or the inner surface (namely, the contact surface) of the pipeline, the detection probes are protected from being damaged after extrusion, and the adaptability of the detection data acquisition system to detection environment changes is provided.
The third purpose of the invention is to provide a pipeline detection device, which comprises the detection probe and the data acquisition system.
The technical scheme provided by the invention has the beneficial effects that:
(1) the invention discloses an ultra-high-definition detection probe, which comprises a probe shell, a PCB (printed circuit board) substrate and at least one sensor array group, wherein the PCB substrate is arranged in the probe shell, all the sensor array groups are arranged on detection surfaces on two surfaces of the PCB substrate, and all the sensor array groups and sensors in the sensor array groups are in staggered array arrangement in a uniform whole. By adopting the sensor array group and the formed layout, high-density data acquisition distribution and ultrahigh data acquisition efficiency are obtained by array arrangement in a sensor space, so that the interval between data acquisition points is not limited by the physical sizes of the sensor and a circuit board any more, and further, when the sensor array group is applied to pipeline inspection, the circumferential interval between the detected data acquisition points can be far smaller than the physical size of the sensor, so that the aims of eliminating the limitation of the physical size of the sensor and improving the circumferential density of the pipeline detected data acquisition points are fulfilled. Therefore, the probe can acquire data with ultrahigh circumferential sampling point density in the process of running along the axial direction of the pipeline, and generates an ultrahigh-definition parameter distribution cloud picture after data processing is completed, so that the detection accuracy and precision are improved, the limitation of the physical size of the sensor can be overcome in the pipeline defect detection, ultrahigh-definition defect inversion imaging is generated, and the defect form is displayed.
(2) The data acquisition system comprises a data storage and at least one detection probe, wherein a plurality of detection probes can be combined and used after being conformally spliced so as to improve the coverage range and the detection efficiency of detection, the spacing between data acquisition points is far smaller than the physical size of the sensor by combining high-frequency signal or data acquisition and storage, and the aim of further improving the detection definition and the detection precision is fulfilled by compensating different array positions of the sensor when the stored data is processed.
(3) The pipeline detection device comprises the data acquisition system, the probe can acquire data with ultrahigh sampling point density in the process of running along the axial direction of the pipeline, and an ultrahigh-definition parameter distribution cloud picture can be generated after data processing is finished, so that the detection accuracy and precision are improved, and ultrahigh-definition inversion imaging can be generated when the device is used for detecting defects or stress.
Drawings
FIG. 1 is a schematic diagram of a PCB substrate structure of the present invention;
FIG. 2 is a schematic diagram of a data acquisition sensor according to the present invention;
FIG. 3 is a side view of the probe housing of the present invention;
FIG. 4 is a front view of the probe housing of the present invention;
FIG. 5 is a schematic diagram of a data acquisition system of a single inspection probe according to the present invention;
FIG. 6 is a schematic diagram of a data acquisition system for multiple inspection probes in accordance with the present invention;
FIG. 7 is a schematic view of the working principle of the magnetic sensor of the data acquisition sensor of the detection probe of the present invention, wherein (a) is a defect-free principle and (b) is a defect-free principle;
FIG. 8 is a schematic diagram showing an array layout of detecting sensors of an ultra high definition detecting probe according to example 1;
FIG. 9 is a schematic view of the overall layout of all sensors in two conformal inspection probes during normal operation;
fig. 10 is a schematic diagram of the overall layout of all sensors in two conformal inspection probes in a squeeze mode of operation.
1. A probe housing; 11. a base; 12. a probe box cover; 121. wear resistant strips; 13. a cable water joint; 14. a joint hole; 2. a PCB substrate; 3. a sensor array group; 31. a data acquisition module; 311. a data acquisition sensor; 3111. detecting a surface; 3112. a mounting surface; 32. a data receiving and processing module; 33. a data communication and transmission module; 4. detecting a probe; 5. a data storage; 51. a multi-channel high-speed data communication interface; 52. a data storage control module; 53. and a data storage unit.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the ultra-high-definition detection probe provided by the invention comprises a probe shell 1, a PCB substrate 2 and at least one sensor array group 3, wherein the PCB substrate 2 is arranged in the probe shell 1, all the sensor array groups 3 are arranged on a detection surface on two surfaces of the PCB substrate 2, and all the sensor array groups 3 and sensors 311 therein are arranged in a staggered array; all the sensor array groups 3 are electrically connected with the PCB substrate 2. Through adopting the sensor array group, form the sensor arrangement overall arrangement with the dislocation distribution mode to make the interval between the data acquisition point no longer receive the restriction of sensor and circuit board circumference physical dimension, and then make the interval that detects between the data acquisition point can be far less than the physical dimension of sensor itself, reach the restriction that eliminates sensor physical dimension, promote the density of data acquisition point. When the ultrahigh-definition defect inversion imaging device is applied to pipeline detection, the probe can acquire data with ultrahigh circumferential sampling point density in the process of moving along the axial direction of a pipeline, and generates an ultrahigh-definition parameter distribution cloud picture after data processing is completed, so that the detection accuracy and precision can be improved.
In some embodiments, by reasonably arranging the sensor array group 3, the probe of the invention realizes ultrahigh-definition data acquisition density and acquisition efficiency, as shown in fig. 2, the sensor array group 3 may include a data acquisition module 31, a data receiving and processing module 32 and a data communication and transmission module 33, the data acquisition module 31 includes a plurality of data acquisition sensors 311 arranged in an array, the data acquisition sensors 311 include a detection surface 3111 and a mounting surface 3112, the data acquisition sensors 311 are mounted on the detection surface of the PCB substrate 2 through the mounting surface 3111, the data receiving and processing module 32 and the data communication and transmission module 33 are both disposed on the mounting surface of the PCB substrate 2, the data acquisition module 31, the data receiving and processing module 32 and the data communication and transmission module 33 are both electrically connected to the PCB substrate 2, including information connection through an optical fiber or a cable.
In some embodiments, in order to achieve an ultrahigh data sampling point density, the data acquisition modules 31 in each sensor array group 3 may be arranged by several data acquisition sensors 311 in a staggered array arrangement, including in any one or more of a parallelogram, an S-shape, a trapezoid, or a triangle, which may be conformally arranged, and two adjacent sensor array groups 3 and the data acquisition sensors 311 therein are disposed in a conformal staggered manner, so as to maintain the consistency of the overall staggered arrangement.
In some embodiments, in order to complete the detection of the pipeline wall defect, a PIG including a leakage magnetic detection technology is used, and the data acquisition sensor 311 in this case is a magnetic sensor. When the PIG moves forwards along with the medium along the axis under the push of the flowing medium in the pipeline, the permanent magnet arranged in the PIG magnetizes the wall of the ferromagnetic pipeline, the pipe wall of a common oil and gas pipeline is smooth when the pipe wall is intact, as shown in fig. 7(a), when the pipe wall without defects is magnetized, a magnetic flux loop in the pipe wall is normal, a magnetic circuit is mainly confined in the pipe wall, and at the moment, abnormal magnetic field disturbance does not exist in the medium environment near the pipe wall where the magnetic sensor is located, and no detection signal or detection signal with abnormal change is output; when a defect exists in the pipe wall, the magnetic lines of force in the pipe wall are refracted at the defect interface, as shown in fig. 7(b), so that disturbance of the magnetic field, namely leakage magnetic field (similar to magnetic field leakage), exists in the medium outside the pipe wall. At the moment, the magnetic sensor can detect the leakage effect of the electromagnetic field at the defect position, the corresponding electric signals are converted into digital signals and stored in the position information of the defect signals, and finally, the judgment and identification of whether the pipe wall has the defects or not and the defect quantification are realized by analyzing the magnetic field signals or data leaked from the defect position.
The probe casing 1 has various structures, and is not limited herein. In one embodiment, as shown in fig. 3, in order to protect and fix the PCB substrate 2, the probe housing 1 may include a base 11 for fixing the PCB substrate 2, a probe cover 12 and a cable waterproof sealing joint 13, the probe cover 12 is detachably and hermetically connected to the base 11, a joint hole 14 corresponding to the cable waterproof sealing joint 13 is provided on the base 11, and a data output port of the data communication and transmission module 33 is connected to the cable waterproof sealing joint 13 for data transmission.
In order to meet the requirements of detection and environment, the probe shell 1 can be made of different materials and designed shapes according to the arrangement requirements of the sensor array group 3, and can be made of any one or the combination of ferromagnetic materials or non-ferromagnetic materials such as silicon steel sheets, ferrite, stainless steel, ceramics, aluminum alloy, titanium alloy, plastics and the like, so that the wear-resistant and pressure-resistant sealing protection effect is provided for the PCB substrate 2. As shown in fig. 4, a wear-resistant strip 121 is disposed on one surface of the probe box cover 12 contacting the detection target, and the wear-resistant strip may be made of ceramic or alloy.
As shown in fig. 5 and 6, the data acquisition system provided by the present invention includes a data storage 5 and at least one of the above-mentioned detection probes 4, two adjacent detection probes 4 are conformally disposed, so that the data acquisition sensors 311 in two adjacent detection probes 4 are still in a staggered array arrangement that is integrally consistent, the data storage 5 is composed of a multi-channel high-speed data communication interface 51, a data storage control module 52 and a data storage unit 53, and the multi-channel high-speed data communication interface 51 is electrically connected to a data output port of the detection probe 4. The pipeline detection data acquisition system can be a single probe or a multi-probe; the multi-probe can be combined after conformal splicing, the coverage range and the detection efficiency of detection are improved, and the transverse (vertical to the moving direction) distance of a data acquisition point is far smaller than the physical size of the sensor by combining multiple acquisition, so that the density and the acquisition efficiency of the data acquisition point are greatly increased, and the purpose of improving the detection definition and the detection precision is finally achieved. And a data storage 5 for receiving and storing the measurement data of the sensors, wherein the position layout of each data collection sensor 311 can be compensated and corrected in the post-processing stage of the inspection data.
In some embodiments, in order to ensure the detection accuracy and precision of the data acquisition system, the data acquisition sensors 311 in two adjacent detection probes 4, the data acquired at a certain time during the movement of the detection probes 4 correspond to the physical parameters on the spatially staggered array acquisition points, and the compensation for the difference of the different arrangement positions along the movement direction of each data acquisition sensor 311 is considered during the data processing and the spatial distribution imaging of the acquired data, so as to eliminate the influence of the ultrahigh data acquisition density, which is replaced by the spatial distribution of the multiple rows of data acquisition sensors 311, on the detection precision, and maintain the ultrahigh detection precision corresponding to the ultrahigh data acquisition density.
In some embodiments, in order to improve the adaptability of the data acquisition system to the detection environment change, a gap can be allowed to be designed and arranged between two adjacent conformal detection probes 4, so that relative movement (i.e. transverse or circumferential extrusion, and a plane perpendicular to the movement direction and the normal direction of the contact surface) between the adjacent detection probes 4 in a direction perpendicular to the gap arrangement can exist, so as to allow or adapt to the passing aperture reduction caused by the change or abnormality of the pipe diameter or the pipe inner surface (i.e. the contact surface), and simultaneously protect the detection probes 4 from being damaged after extrusion and provide the adaptability of the detection data acquisition system to the detection environment change.
The working principle of the data acquisition system of the invention is as follows: the data acquisition module 31 composed of the sensor array groups 3 arranged in an array on the PCB substrate 2 moves fast in the pipeline along the pipeline axis, i.e. the detection moving direction shown in fig. 8-10, for data acquisition in the pipeline detection process, and transmits the detection data to the data memory 5 for storage through the communication module, so as to complete the off-line data processing in the following. Each sensor array group 3 is mechanically and electrically connected with the PCB substrate 2 to ensure that each sensor works normally, and the electric connection between the sensor array group and the data memory 5 is smooth, so that the normal storage of data is ensured; after all the sensor array groups 3 are connected, the PCB substrate 2 is placed inside the probe housing 1 and fixed on the base 11, which is elastically mounted to allow overall radial movement to pass through abnormal deformations or obstacles present on the tube wall. The data acquisition sensors 311 to which the sensor array group 3 belongs are arranged in a staggered manner in multiple rows, so that the distance between sampling points during data acquisition is greatly reduced, and the aim of improving the precision is fulfilled. The PCB substrate 2 is connected with the data memory 5 to complete the data acquisition, transmission and storage work, and realize the online real-time detection.
In order to demonstrate the technical effects of the ultra-high-definition probe of the present invention, the following detailed discussion is made with reference to the accompanying drawings and specific applications:
example 1
Fig. 8 is a schematic diagram of an array layout of the detecting sensors 311 of an ultra-high-definition detecting probe 4 according to the present application, which can obtain ultra-high detection data acquisition density and ultra-high-definition defect data inversion imaging in internal detection of a pipeline defect. The physical size (the distance between the central points of the sensors) of the sensors which are circumferentially and tightly arranged in the example in the figure is 3mm, and the circumferential distance of data acquisition is 1mm by using staggered array arrangement in the figure, so that the detection precision which is far smaller than the physical size of the sensors by 3mm is achieved. The detection probe 4 comprises two sensor array groups 3, the two sensor array groups 3 are arranged in a staggered manner, the PCB substrate 2 is designed into a whole structure with three staggered sections and connection, the detection probe comprises a first section 21, a second section 22 and a third section 23, wherein the sensors of the sensor array groups 3 in the first section 21 and the third section 23 are arranged in a staggered manner in a conformal manner in a circumferential direction (perpendicular to the moving direction), each sensor array group 3 comprises a data acquisition module 31, the data acquisition module 31 comprises 15 data acquisition sensors 311, other forms of conformal staggered arrangement can be adopted here, the data acquisition sensors 311 with more numbers can be designed according to the circumferential density requirements of sampling points, and the number of the data acquisition sensors 311 is not only 15.
The malposition arrangement of the plurality of data acquisition sensors 311 and the malposition arrangement of the sensor array group overcome the obstacle of the physical size of the existing sensors, and according to the design method, the sampling interval of the data can be reduced to be less than 1mm and far less than the common 3-6mm and the best foreign 1.5mm, which provides guarantee for ultra-high definition defect imaging and ultra-high detection precision.
The pipeline detection has different principles and methods, takes the pipeline defect magnetic flux leakage detection as an example, and has the technical principle that: and detecting the defects on the tube wall by using the electromagnetic leakage effect generated when the defects appear. Generally, the pipe wall is smooth when being complete, so when the pipe wall is magnetized, as shown in fig. 7(a), when the pipe wall has no defect, the magnetic flux loop has no disturbance, and the leakage magnetic field signal picked up by the magnetic sensor in the air is constant or small enough to be ignored; as shown in fig. 7(b), when a defect exists in the pipe wall, the magnetic lines of force in the pipe body are refracted (like leakage) at the defect interface, resulting in a change in the leakage magnetic field outside the pipe body. The defects of the pipe body can be identified by analyzing the detected leakage magnetic field signals in the actual pipeline detection process; the rough quantification of the defects can be realized by analyzing the characteristics of the leakage magnetic field signal such as form, amplitude and the like.
When data are collected, the size of a sampling interval is one of key factors for determining detection precision, and the ultra-high-definition detection probe designed by the invention realizes the collection of high-definition data, so that the sampling interval can be less than or equal to 1 mm.
As shown in fig. 9 and 10, for the schematic array layout of the detecting sensors 311 of the multiple ultra-high-definition detecting probes 4 of the present application, two adjacent detecting probes 4 with a designed gap are disposed conformally, so that the multiple data collecting sensors 311 arranged in the two adjacent detecting probes 4 still maintain the staggered array arrangement with the consistent data collecting points, in a normal detecting state, the caliber of the pipeline matches the designed number of probes, at this time, the whole body formed by all the sensors in the two conformal probes is disposed to detect the required density of the lateral data collecting points, and in a state that the extrusion or the deformation of the pipeline is reduced by the caliber, the relative motion between the two adjacent conformal probes with the gap carried by the apparatus PIG is allowed to occur, that is, the gap is allowed to be compressed, but it can still be ensured that the density of the data points is not reduced. In fact, the extrusion of adjacent probes is close to and can increase the density of adjacent data acquisition points, the increase effect of the density of the data acquisition points can also be used for distinguishing or finding the deformation or the abnormity of the pipeline through the post-processing of data, the detection precision and the acquisition density of designed data points are influenced, and the beneficial effects are that reserved gaps can be designed and arranged between the adjacent conformal probes, and the gaps allow a plurality of probes carried by the pipeline detection device to smoothly pass through the obstacles or the deformed pipeline after being extruded and subjected to diameter change when the pipe is bent or deformed or obstacles appear in the pipeline.
As shown in fig. 9, in the normal state of design conditions, the overall layout of all sensors in two conformal probes, there is a 10mm circumferential gap between two adjacent probes.
As shown in fig. 10, the overall arrangement of all sensors in two conformal probes allows for relative movement between the probes in the presence of extrusion or pipe deformation, but still ensures that the data points are not reduced in density.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.

Claims (10)

1. The ultra-high-definition detection probe is characterized in that the detection probe (4) comprises a probe shell (1), a PCB (printed circuit board) substrate (2) and at least one sensor array group (3), the PCB substrate (2) is arranged in the probe shell (1), all the sensor array groups (3) are arranged on one side of two surfaces of the PCB substrate (2), all the sensor array groups (3) are arranged in a staggered array in a consistent manner, and all the sensor array groups (3) are electrically connected with the PCB substrate (2).
2. The ultra high definition detection probe according to claim 1, wherein the sensor array set (3) comprises a data acquisition module (31), a data receiving and processing module (32) and a data communication and transmission module (33), the data acquisition module (31) comprises a plurality of data acquisition sensors (311) arranged in an array, the data acquisition sensor (311) comprises a detection surface (3111) and a mounting surface (3112), the data acquisition sensor (311) is arranged on the detection surface of the PCB substrate (2) through the mounting surface (3112), the PCB substrate (2) is also provided with the data receiving and processing module (32) and the data communication and transmission module (33), the data acquisition module (31), the data receiving and processing module (32) and the data communication and transmission module (33) are electrically connected with the PCB substrate (2).
3. The ultra high definition detection probe according to claim 2, wherein a plurality of the data acquisition sensors (311) of the data acquisition module (31) in each sensor array set (3) are arranged in a staggered array arrangement, including in any one or more of a parallelogram, an S-shape, a trapezoid or a triangle, which can be conformally arranged, and two adjacent sensor array sets (3) and the data acquisition sensors (311) therein are disposed in a conformally staggered manner, so as to maintain the consistency of the overall and staggered arrangement.
4. The ultra high definition detection probe of claim 2, wherein the data acquisition sensor (311) comprises a magneto-sensitive sensor.
5. The ultra high definition detection probe according to claim 2, wherein the probe housing (1) comprises a base (11) for fixing the PCB substrate (2), a probe cover (12) and a cable waterproof sealing joint (13), the probe cover (12) is detachably connected with the base (11) in a sealing manner, the base (11) is provided with a joint hole (14) corresponding to the cable waterproof sealing joint (13), and a data output port of the data communication and transmission module (33) is connected with the cable waterproof sealing joint (13) for data transmission.
6. The ultra high definition detection probe according to claim 5, wherein the probe casing (1) is made of any one or combination of ferromagnetic materials or non-ferromagnetic materials such as silicon steel sheet, ferrite, stainless steel, ceramic, aluminum alloy, titanium alloy and plastic, and the side of the probe cover (12) contacting the detection target is provided with a wear-resistant strip (121).
7. A data acquisition system, characterized by comprising a data storage device (5) and at least one detection probe (4) as claimed in any one of claims 1 to 6, wherein two adjacent detection probes (4) are disposed conformally, so that the data acquisition sensors (311) in two adjacent detection probes (4) are still in a staggered array arrangement with a uniform whole, the data storage device (5) is composed of a multi-channel high-speed data communication interface (51), a data storage control module (52) and a data storage unit (53), and the multi-channel high-speed data communication interface (51) is electrically connected with a data output port of the detection probe (4).
8. The data acquisition system as claimed in claim 7, wherein the data acquisition sensors (311) in two adjacent detection probes (4) acquire data corresponding to physical parameters at spatially displaced array acquisition points at a certain time during the movement of the detection probes (4), and the influence of the ultrahigh data acquisition density obtained by the spatial distribution of the data acquisition sensors (311) in multiple rows on the detection accuracy is eliminated by considering the compensation of the difference of different arrangement positions of each data acquisition sensor (311) during the data processing and the imaging of the spatial distribution of the acquired data, so that the ultrahigh detection accuracy corresponding to the ultrahigh data acquisition density is maintained.
9. The data acquisition system according to claim 7, characterized in that design and arrangement gaps are allowed between two adjacent conformal detection probes (4).
10. A pipeline inspection apparatus comprising an inspection probe according to any of claims 1 to 6 and a data acquisition system according to any of claims 7 to 9.
CN202210654308.2A 2022-06-10 2022-06-10 Ultra-high-definition detection probe, data acquisition system and pipeline detection device Pending CN115060792A (en)

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