WO2023103276A1 - Dispositif d'essai et d'étalonnage et procédé d'essai et d'étalonnage pour tissu de fil métallique - Google Patents

Dispositif d'essai et d'étalonnage et procédé d'essai et d'étalonnage pour tissu de fil métallique Download PDF

Info

Publication number
WO2023103276A1
WO2023103276A1 PCT/CN2022/091912 CN2022091912W WO2023103276A1 WO 2023103276 A1 WO2023103276 A1 WO 2023103276A1 CN 2022091912 W CN2022091912 W CN 2022091912W WO 2023103276 A1 WO2023103276 A1 WO 2023103276A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
calibration
detection
steel cord
slide rail
Prior art date
Application number
PCT/CN2022/091912
Other languages
English (en)
Chinese (zh)
Inventor
戚务昌
林永辉
姜利
张凯
Original Assignee
威海华菱光电股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 威海华菱光电股份有限公司 filed Critical 威海华菱光电股份有限公司
Publication of WO2023103276A1 publication Critical patent/WO2023103276A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws

Definitions

  • the present application relates to the field of industrial non-destructive testing, in particular to a device and method capable of detecting defects in steel cord fabrics and calibrating the detection results.
  • Steel cord is an important part of truck tires. It is composed of an outer rubber layer and steel cords arranged at equal intervals inside the rubber layer. As a belt layer of truck tires, it provides important support for strengthening the structural strength and bearing capacity of truck tires. During the manufacturing process of steel cord, due to the influence of production equipment and process flow, the steel wires in the steel cord may have uneven distribution such as bending, dislocation, disconnection, crossing, etc. If the distribution of steel wires in the steel cord cannot be detected in real time, then It will have an adverse effect on the quality of the steel cord, and directly affect the performance and safety of the truck tire.
  • the existing non-destructive testing technology for steel cords there is a device for detecting defects in steel cords based on magnetic images generated by arrayed magnetic sensitive elements, which usually includes an array magnetic field unit for generating initial excitation magnetic field signals; arrayed magnetic sensitive elements, Corresponding to the array magnetic field unit, it is used to detect multi-point magnetic field signal changes; the signal processing unit includes an AD conversion module and a data processing module; the AD conversion module is used to convert the magnetic field signal of the steel cord into a digital magnetic field of the steel cord signal; the data processing module is used to generate the magnetic image signal of the steel cord for subsequent judgment by the defect detection unit.
  • the discretization between the array magnetic sensitive elements causes the initial state of each magnetic sensitive element to be different, and the initial excitation magnetic field signal of the array magnetic field unit is not the same, resulting in that when there is no steel cord passing through each magnetic sensitive element
  • the magnetic field is different, which eventually leads to the original output of each array magnetic sensor element is not the same when there is no steel cord passing through, which brings difficulties to the subsequent image defect detection.
  • the steel cord is continuously conveyed on the detection device, due to environmental changes and magnetization of the steel cord, it will cause continuous impact on the magnetic sensor and the magnetic field unit, resulting in a change in the initial excitation magnetic field, which makes the original output of the magnetic sensor deviate from the initial installation.
  • the purpose of this application is to provide a method that can combine the non-destructive testing process of the steel cord with the calibration process, and eliminate the influence of the magnetization of the steel cord on the calibration signal, so as to obtain a more accurate calibration signal. And a device and method for detecting signals after calibration.
  • One aspect of the present application provides a steel cord detection and calibration device, which is used to obtain the detection signal of the steel cord and perform calibration through the calibration signal.
  • the width of the steel cord is perpendicular to the Z axis and along the X axis perpendicular to the Z axis. directional movement, the detection and calibration device includes:
  • a detection assembly includes a magnetic sensor module, the magnetic sensor module is not in the same plane as the steel cord, including: a substrate, a plurality of magnetic sensitive elements, a processing unit and a magnetic unit facing away, the substrate is parallel to For the width of the steel cord, the plurality of magnetic sensitive elements are arranged at intervals along a predetermined direction on the surface of the substrate facing the steel cord, for obtaining the detection signal and the calibration signal, the The processing unit and the back-facing magnetic unit are arranged on the surface of the substrate facing away from the steel cord, the back-facing magnetic unit is arranged along the preset direction, and is used to generate an initial excitation magnetic field, and the processing unit electrically connected to the plurality of magnetic sensitive elements for processing the detection signal and the calibration signal;
  • the slide rail assembly includes a first slide rail extending along the preset direction, the magnetic sensor module overlaps the first slide rail and can reciprocally slide along the first slide rail;
  • the bracket is used to support and fix the slide rail assembly.
  • the preset direction is a Y-axis direction
  • the Y-axis is respectively perpendicular to the X-axis and the Z-axis.
  • the projection of the first slide rail on the web of the steel cord exceeds the edges of both sides of the web of the steel cord, and the length beyond one side is longer than that of the magnetic sensor module along the preset direction. length.
  • the slide rail assembly and the bracket are made of non-magnetic and non-magnetized rigid material.
  • the sliding rail assembly further includes: a sliding mechanism, the sliding mechanism includes a motor and a screw, the screw is parallel to the first sliding rail, and the motor is used to drive the screw to rotate; the receiving part, the The receiving part is fixedly connected with the magnetic sensor module, and is sleeved on the outside of the screw rod through a screw hole.
  • a sliding mechanism the sliding mechanism includes a motor and a screw, the screw is parallel to the first sliding rail, and the motor is used to drive the screw to rotate
  • the receiving part the The receiving part is fixedly connected with the magnetic sensor module, and is sleeved on the outside of the screw rod through a screw hole.
  • the detection signal is a signal obtained by scanning the plurality of magnetic sensitive elements when the magnetic sensor module is located at a detection position, and the detection position satisfies the requirement that the magnetic sensor module is projected on the width of the steel cord.
  • the position within; the calibration signal is the signal obtained by scanning the plurality of magnetic sensitive elements when the magnetic sensor module is located at the calibration position, and the calibration position satisfies the projection of the magnetic sensor module on the steel cord position outside the format.
  • the slide rail assembly further includes: a detection positioning mark, which is set at one end of the slide rail assembly close to the steel cord, for positioning the magnetic sensor module to the detection position; a calibration positioning mark, which is set The end of the slide rail assembly away from the steel cord is used to position the magnetic sensor module to the calibration position.
  • the detection assembly further includes a first opposing magnetic module, the first opposing magnetic module is arranged on the side of the steel cord facing away from the magnetic sensor module, and includes The first opposing magnetic unit;
  • the slide rail assembly also includes a second slide rail parallel to and equal in length to the first slide rail, the first slide rail and the second slide rail are on the side of the steel cord The projections on the web are overlapped; the first opposing magnetic module is overlapped on the second slide rail and can reciprocally slide along the second slide rail.
  • the first opposing magnetic module is positioned at the detection position; the detection assembly further includes a second opposing magnetic module, and the second opposing magnetic module is overlapped on the second slide rail and positioned at the calibration position; the second opposing magnetic module includes a second opposing magnetic unit arranged along the preset direction, the first opposing magnetic unit and the second opposing magnetic unit are strong The magnetic structure and the magnetic field characteristics of the second opposing magnetic unit are the same as those of the first opposing magnetic unit.
  • the magnetic sensor module further includes a magnetic sensor module frame and a cover plate, and the magnetic sensor module frame is used to insert and fix the substrate, the plurality of magnetic sensitive elements, the processing unit and the facing away from the magnetic unit, the cover plate is located on the surface of the magnetic sensor module frame facing the steel cord;
  • the first facing magnetic module also includes a first frame for inserting and fixing the The first opposing magnetic unit;
  • the second opposing magnetic module further includes a second frame for placing and fixing the second opposing magnetic unit.
  • Another aspect of the present application also provides a detection and calibration method, using the above steel cord detection and calibration device to detect and calibrate the steel cord, the method includes the following steps:
  • S200 Start the scanning of the magnetic sensor module, and obtain a calibration signal of each of the magnetic sensitive elements
  • S300 Determine a calibration offset value of each of the magnetic sensitive elements according to the calibration signal and a preset calibration target value
  • S500 Start the movement of the steel cord and the scanning of the magnetic sensor module, and obtain a detection signal of each of the magnetic sensitive elements;
  • S600 Determine a calibrated detection signal of each of the magnetic sensitive elements according to the detection signal and the calibration deviation value.
  • the determining the calibration deviation value of each of the magnetic sensitive elements according to the calibration signal and the preset calibration target value is specifically: subtracting the calibration signal obtained by each of the magnetic sensitive elements from the calibration The target value obtains the calibration deviation value of each of the magnetic sensitive elements;
  • the determining the calibrated detection signal of each of the magnetic sensitive elements according to the detection signal and the calibration deviation value is specifically: subtracting the detection signal obtained by each of the magnetic sensitive elements from each of the magnetic sensitive elements The calibration offset value of the element obtains the calibrated detection signal of each said magnetic sensitive element.
  • the detection position is a position satisfying that the magnetic sensor module is projected within the width of the steel cord;
  • the calibration position is a position satisfying that the magnetic sensor module is projected outside the width of the steel cord.
  • the steps S100 to S400 are executed before the first installed operation or when the operating environment changes causing the initial excitation magnetic field to change.
  • the detection assembly further includes a first opposing magnetic module, the first opposing magnetic module is arranged on the side of the steel cord facing away from the magnetic sensor module, and includes The first opposing magnetic unit;
  • the slide rail assembly also includes a second slide rail parallel to and equal in length to the first slide rail, the first slide rail and the second slide rail are on the side of the steel cord The projections on the web are coincident; the first opposing magnetic module is overlapped with the second slide rail, and the connection line between the first opposing magnetic module and the magnetic sensor module is always perpendicular to the Format.
  • the detection assembly further includes a first opposing magnetic module and a second opposing magnetic module arranged on the side of the steel cord facing away from the magnetic sensor module, the first opposing magnetic module includes The first opposing magnetic unit arranged in the preset direction, the second opposing magnetic module includes a second opposing magnetic unit arranged in the preset direction, the first opposing magnetic unit and the second
  • the opposing magnetic units are all strong magnetic structures and the magnetic field characteristics of the second opposing magnetic unit are the same as those of the first opposing magnetic unit;
  • the slide rail assembly also includes The projections of the first slide rail and the second slide rail on the web of the steel cord coincide; the first opposing magnetic module and the second opposing magnetic module overlap on the second slide rail, and the first opposing magnetic module is positioned at the detection position, and the second opposing magnetic module is positioned at the calibration position.
  • the steel cord detection and calibration device and detection and calibration method provided by the embodiments of the application can correct the output initial value of each magnetic sensitive element, so that the initial value of each magnetic sensitive element in the sensor is roughly equal to the set target value, excluding the magnetic
  • the signal fluctuation caused by the inhomogeneity of the sensitive element and the magnetic field unit makes the amplitude change of the final output signal only related to the shape, angle, spacing and other factors of the steel cord, and makes the detection signal of the steel cord and the subsequent generated magnetic field image background Uniform, effective information is prominent, improving the accuracy and reliability of detection.
  • the calibration operation is performed by sliding the detection device out of the range of the steel cord width, which can effectively avoid the influence of the magnetized steel cord in the steel cord on the detection device, and is easy to operate, easy to implement, and high in calibration accuracy.
  • Fig. 1 is a perspective view of the detection state of a steel cord detection and calibration device provided by an embodiment of the present application
  • Fig. 2 is a perspective view of the calibration state of the steel cord detection and calibration device provided by an embodiment of the present application
  • Fig. 3 is a side view of a steel cord detection and calibration device provided by an embodiment of the present application.
  • Fig. 4 is a perspective view of the detection state of the steel cord detection and calibration device provided by another embodiment of the present application.
  • Fig. 5 is a perspective view of the calibration state of the steel cord detection and calibration device provided by another embodiment of the present application.
  • Fig. 6 is a perspective view of the detection state of the steel cord detection and calibration device provided by another embodiment of the present application.
  • Fig. 7 is a perspective view of the calibration state of the steel cord detection and calibration device provided by another embodiment of the present application.
  • Fig. 8 is a side view of a steel cord detection and calibration device provided by another embodiment of the present application.
  • Fig. 9 is a perspective view of the detection state of the steel cord detection and calibration device provided by another embodiment of the present application.
  • Fig. 10 is a perspective view of the calibration state of the steel cord detection and calibration device provided by another embodiment of the present application.
  • Fig. 11 is a flowchart of a steel cord detection and calibration method provided by an embodiment of the present application.
  • Fig. 12 is a comparison between the calibrated detection signal obtained by the steel cord detection and calibration method provided in the embodiment of the present application and the uncalibrated detection signal.
  • 11 Magnetic sensor module, 111: Substrate, 112: Magnetic sensitive element, 113: Backward magnetic unit, 114: Processing unit, 115: Magnetic sensor module frame, 116: Cover plate, 12: First opposing magnetic module, 121: the first opposing magnetic unit, 122: the frame of the first opposing magnetic module, 13: the second opposing magnetic module, 21: the first sliding rail, 22: the second sliding rail, 23: detection and positioning marks, 24 : Calibration positioning mark, 3: Bracket, 4: Steel cord, 5: Accepting piece, 6: Sliding mechanism, 61: Motor, 62: Screw.
  • FIG. 1 and Figure 2 are perspective views of the steel cord detection and calibration device in different states according to a preferred embodiment of the present application, and Figure 3 is the above detection
  • the side view of the calibration device, the steel cords 4 in the above drawings move under the drive of the transmission mechanism (not shown in the figure), in order to clearly illustrate the technical solution of the embodiment of the application, the steel cords 4 are arranged at equal intervals
  • a plurality of steel cords indicates that the direction of their arrangement is the direction of movement of the steel cord 4, which is represented as the X-axis direction in the above-mentioned drawings; the normal direction of the width of the steel cord 4 is represented as the Z-axis direction in the above-mentioned drawings, and Z The axial direction is perpendicular to the X-axis direction.
  • the steel cord detection and calibration device includes a detection component, and the detection component includes a magnetic sensor module 11, and the magnetic sensor module 11 is not in the same plane as the steel cord 4, including: a substrate 111, a plurality of magnetic sensitive elements 112, a processing unit 114 and a magnetic unit 113 facing away, the substrate 111 is parallel to the web of the steel cord 4, and a plurality of magnetic sensitive elements 112 are arranged at intervals along the preset direction on the substrate 111 facing the steel cord The surface on one side of 4 is used to obtain detection signals and calibration signals.
  • the processing unit 114 and the magnetic unit 113 facing away are arranged on the surface of the substrate 111 facing away from the side of the steel cord 4, and the magnetic units 113 facing away are arranged along a preset direction.
  • the processing unit 114 is electrically connected to the plurality of magnetic sensitive elements 112 for processing detection signals and calibration signals.
  • the magnetic sensor module 11 also includes a magnetic sensor module frame body 115 and a cover plate 116, and the magnetic sensor module 11 is used to place and fix the above-mentioned substrate 111, magnetic sensitive element 112, processing unit 114 and rear-facing
  • the magnetic unit 113 and the cover plate 116 are located on the surface of the magnetic sensor module frame body 115 facing the steel cord 4, and are used to protect the above-mentioned magnetic sensitive element 112; the above-mentioned substrate 111, the magnetic sensor module frame body 115 and the cover plate 116 are all made of non-magnetic And will not be made of magnetized material.
  • Each magnetic sensitive element 112 of the magnetic sensor module 11 has its own initial value in the initial excitation magnetic field excited against the magnetic unit 113.
  • the steel cord 4 moves along the X-axis direction and passes through the initial excitation magnetic field, the steel wire in the steel cord 4 The cord causes disturbance to the initial excitation magnetic field and is acquired by the above-mentioned multiple magnetic sensitive elements 112.
  • the steel cord in the steel cord 4 can be detected.
  • each magnetic sensitive element 112 Since the initial state of each magnetic sensitive element 112 is different, the initial excitation magnetic field generated by the multiple magnets corresponding to the magnetic sensitive element 112 is also different, resulting in the magnetic field applied to the position of each magnetic sensitive element 112 when no steel cord 4 passes through. Different magnetic fields eventually lead to different original outputs of each magnetic sensitive element 112 when no steel cord 4 passes through, which brings difficulties to subsequent image defect detection;
  • the detection device provided by the embodiment of the present application further includes a slide rail assembly and a bracket 3, the slide rail assembly includes a first slide rail 21 extending along a preset direction, and the magnetic sensor module 11 is overlapped on the first slide rail 21 and can reciprocally slide along the first slide rail 21; the bracket 3 is used to support and fix the slide rail assembly.
  • the slide rail assembly includes a first slide rail 21 extending along a preset direction, and the magnetic sensor module 11 is overlapped on the first slide rail 21 and can reciprocally slide along the first slide rail 21; the bracket 3 is used to support and fix the slide rail assembly.
  • the first sliding rail 21 is composed of two parallel and equal-length sliding rails, and the magnetic sensor module 11 is overlapped on the two sliding rails and Can reciprocally slide, the bracket 3 is fixed with the two ends of each slideway and forms a stable support;
  • the sensor module 11 is adapted to the chute, and the magnetic sensor module 11 can slide reciprocally along the chute.
  • the magnetic sensor module 11 acquires the detection signal and the calibration signal at different positions respectively, thereby eliminating the The influence of the magnetized steel cord on the calibration process is eliminated, the accuracy of the calibration signal is improved, and the reliability of the calibration of the detection signal is ensured.
  • the preset direction is the direction of the Y axis, and the Y axis is perpendicular to the X axis and the Z axis respectively.
  • the projection of the first slide rail 21 on the web of the steel cord 4 exceeds the edges of both sides of the web of the steel cord 4, and the length beyond one side is longer than that of the magnetic sensor module 11 along the predetermined
  • the length of the setting direction, the above-mentioned setting can ensure that the magnetic sensor module 11 can reach any position of the width of the steel cord 4 when performing detection on the one hand, thereby expanding the detection range; It is completely out of the scope of the web of the steel cord 4, thereby eliminating the influence of the magnetized steel cord on the calibration process as much as possible.
  • the slide rail assembly and the bracket 3 are made of non-magnetic and non-magnetized rigid materials, such as non-magnetic aluminum alloy and other materials.
  • Fig. 1 and Fig. 2 respectively show schematic diagrams of the magnetic sensor module 11 in the detection position and in the calibration position in some preferred embodiments of the present application.
  • the detection position is to satisfy the position within the width of the steel cord 4 projected by the magnetic sensor module 11.
  • the magnetic field signal obtained by scanning the multiple magnetic sensitive elements 112 of the magnetic sensor module 11 is a detection signal;
  • the calibration position is a position satisfying that the magnetic sensor module 11 is projected on a position other than the width of the steel cord 4.
  • the magnetic field signals obtained by scanning the plurality of magnetic sensitive elements 112 of the magnetic sensor module 11 are calibration Signal.
  • the slide rail assembly further includes: a sliding mechanism 6 and a receiving member 5, the sliding mechanism 6 includes a motor 61 and a screw 62, the screw 62 and the first slide
  • the rails 21 are parallel, and the motor 61 is used to drive the screw 62 to rotate;
  • the receiving part 5 is fixedly connected with the magnetic sensor module 11 , and is sleeved on the outside of the screw 62 through a screw hole.
  • the slide rail assembly further includes a detection positioning mark 23 and a calibration positioning mark 24 .
  • the detection positioning mark 23 is set on the end of the slide rail assembly close to the steel cord 4, and is used to position the magnetic sensor module 11 to the detection position;
  • the calibration positioning mark 24 is set on the end of the slide rail assembly away from the steel cord 4, and is used to position the magnetic sensor module 11 to the detection position; 11 Locate to the calibration position.
  • the detection assembly further includes a first opposing magnetic module 12
  • the slide rail assembly further includes a second slide rail 22 .
  • the first opposing magnetic module 12 is arranged on the side of the steel cord 4 facing away from the magnetic sensor module 11, including the first opposing magnetic units 121 arranged along the Y-axis direction and used to insert and fix the first opposing magnetic units 121
  • the first opposing magnetic module frame body 122, the first opposing magnetic module frame body 122 is made of non-magnetic and non-magnetized material;
  • the second slide rail 22 is parallel and equal to the first slide rail 21;
  • the projections of the first sliding rail 21 and the second sliding rail 22 on the web of the steel cord 4 coincide; the first opposing magnetic module 12 is overlapped on the second sliding rail 22 and can reciprocate slide.
  • the setting method of the second slide rail 22 is the same as that of the first slide rail 21, and the support 3 is located at the two ends of the first slide rail 21 and the second slide rail 22,
  • the first opposing magnetic module 12 and the magnetic sensor module 11 are oppositely arranged on both sides of the web of the steel cord 4, and the first opposing magnetic unit 121 and the magnetic sensor module 11's back-facing magnetic unit 113 work together to generate an initial excitation magnetic field , the distribution of the magnetic lines of force is more uniform; in addition, the first opposing magnetic module 12 can reciprocate along the second slide rail 22, and when the magnetic sensor module 11 performs detection and calibration, it can keep the relative position with the magnetic sensor module 11 unchanged, thereby The consistency of the initial excitation magnetic field signal during detection operation and calibration operation is further improved.
  • the first opposing magnetic module 12 is positioned at the detection position; the detection assembly also includes a second opposing magnetic module 13, and the second opposing magnetic module 13 overlaps the second slide rail 22 and is positioned at the calibration position; the second opposing magnetic module 13 includes a second opposing magnetic unit arranged along the Y-axis direction and a second opposing magnetic unit for placing and fixing the second opposing magnetic unit.
  • the second opposing magnetic module frame is made of non-magnetic and non-magnetized materials; the first opposing magnetic unit 121 and the second opposing magnetic unit are both strong magnetic structures and the second opposing magnetic unit The magnetic field characteristics of the two opposing magnetic units are the same as those of the first opposing magnetic unit 121 .
  • Both the first opposing magnetic unit 121 and the second opposing magnetic unit are of strong magnetic structure, and their exciting magnetic fields are not affected by the steel cords. They are constructed to have the same magnetic field characteristics and are respectively positioned at the detection position and the calibration position, which can be On the basis of ensuring the consistency of the detection operation and the calibration operation, the movable unit modules are reduced, so that the mechanical design of the device is simpler.
  • FIG. 11 is a flow chart of some preferred embodiments, as shown in Fig. 11 As shown, the above-mentioned steel cord detection and calibration method includes the following steps:
  • S200 Start the scanning of the magnetic sensor module, and obtain a calibration signal of each of the magnetic sensitive elements
  • S300 Determine a calibration offset value of each of the magnetic sensitive elements according to the calibration signal and a preset calibration target value
  • S500 Start the movement of the steel cord and the scanning of the magnetic sensor module, and obtain a detection signal of each of the magnetic sensitive elements;
  • S600 Determine a calibrated detection signal of each of the magnetic sensitive elements according to the detection signal and the calibration deviation value.
  • the calibration deviation value of each magnetic sensitive element 112 is determined according to the calibration signal and the preset calibration target value, specifically: the calibration signal obtained by each magnetic sensitive element 112 is subtracted from the calibration The target value obtains the calibration deviation value of each magnetic sensitive element 112;
  • the detection position is a position where the magnetic sensor module 11 is projected within the web of the steel cord 4; the calibration position is a position where the magnetic sensor module 11 is projected outside the web of the steel cord 4.
  • steps S100 to S400 are performed before the first installation and operation or when the initial excitation magnetic field changes due to changes in the operating environment.
  • the detection assembly further includes a first opposing magnetic module 12, and the first opposing magnetic module 12 is arranged on the side of the steel cord 4 facing away from the magnetic sensor module 11, including Arranged first opposing magnetic units 121;
  • the slide rail assembly also includes a second slide rail 22 parallel to and equal to the first slide rail 21, and the first slide rail 21 and the second slide rail 22 are on the web of the steel cord 4 The projection coincides; the first opposing magnetic module 12 overlaps the second slide rail 22, and the connection line between the first opposing magnetic module 12 and the magnetic sensor module 11 is always perpendicular to the web of the steel cord 4.
  • the detection assembly further includes a first opposing magnetic module 12 and a second opposing magnetic module 13 arranged on the side of the steel cord 4 facing away from the magnetic sensor module 11, the first opposing magnetic module
  • the module 12 includes a first opposing magnetic unit 121 arranged along a preset direction
  • the second opposing magnetic module 13 includes a second opposing magnetic unit arranged along a preset direction
  • the first opposing magnetic unit 121 and the second opposing magnetic unit 121 The magnetic units are all strong magnetic structures and the magnetic field characteristics of the second facing magnetic unit are the same as the first facing magnetic unit 121
  • the slide rail assembly also includes a second slide rail 22 parallel and equal to the first slide rail 21, The projections of the first slide rail 21 and the second slide rail 22 on the web of the steel cord 4 overlap; the first opposing magnetic module 12 and the second opposing magnetic module 13 overlap the second sliding rail 22, and the first opposing
  • the magnetic module 12 is positioned at the detection position
  • the second opposing magnetic module 13 is positioned at the calibration position.
  • this embodiment provides a steel cord detection and calibration device, including a magnetic sensor module 11 , a first slide rail 21 , a sliding mechanism 6 , a receiving member 5 and a bracket 3 .
  • the magnetic sensor module 11 includes a substrate 111 made of PCB material.
  • the substrate 111 is parallel to the width of the steel cord 4.
  • Component 112 forms an effective scanning width of 108mm and acquires detection signals and calibration signals, both of which are magnetic field signals, specifically, voltage signals reflecting the magnitude of the magnetic field; the surface of the substrate 111 facing away from the side of the steel cord 4 A magnetic unit 113 facing away and a processing unit 114 are provided, the magnetic unit 113 facing away comprises a plurality of magnets equidistantly arranged along the Y-axis direction, and the processing unit 114 is electrically connected with each magnetic sensitive element 112 through wires, and is used for digitizing the above-mentioned
  • the detection signal and the calibration signal are processed by calculation, storage, and output.
  • the processing unit 114 can also be connected with the subsequent magnetic image generation unit and defect detection unit to generate the magnetic field image of the steel cord according to the output calibration detection signal and identify the magnetic field image of the steel cord. Defect information; after the above-mentioned components are placed into the magnetic sensor module frame 115 and fixed, a detachable cover plate 116 is provided on the surface of the magnetic sensor module frame 115 facing the steel cord 4 side for the magnetic sensor 112 For protection, the distance between the cover plate 116 and the steel cord 4 is 2 mm; the base plate 111 , the magnetic sensor module frame 115 and the cover plate 116 are non-magnetic and will not be magnetized.
  • the first slide rail 21 extends along the Y axis, and its length covers the entire width of the steel cord 4, and the length beyond the edge of the steel cord 4 on one side is greater than the length of the magnetic sensor module 11 along the Y axis, and the two ends are fixed by the bracket 3; Both the first slide rail 21 and the bracket 3 are made of non-magnetic and non-magnetized aluminum alloy material.
  • the sliding mechanism 6 includes a screw 62 parallel to the first slide rail 21 and a motor 61 that drives the screw 62 to rotate.
  • the magnetic sensor module 11 overlaps the first slide rail 21 and is fixedly connected to one end of the receiving member 5 .
  • the other end is provided with a screw hole, covering the outside of the screw 62 , and the rotation of the motor 61 can drive the magnetic sensor module 11 to reciprocate along the first slide rail 21 to the detection position and the calibration position.
  • the detection position is that the projection of the magnetic sensor module 11 falls at a certain position within the width of the steel cord 4, and the calibration position is that the projection of the magnetic sensor module 11 falls at a certain position outside the width of the steel cord 4.
  • the detection position and the calibration position are determined according to the size of the steel cord 4, the surrounding working conditions, etc., and are marked by the detection positioning mark 23 and the calibration positioning mark 24 arranged on the first slide rail 21, so as to ensure that each detection and calibration Consistency of conditions.
  • This embodiment also provides a method for detecting and calibrating the steel cord 4 using the above-mentioned detecting and calibrating device, which will be described in detail below with reference to FIG. 11 and FIG. 12 .
  • the method includes the following steps:
  • the transmission mechanism of the steel cord 4 is closed to stop the movement of the steel cord 4, stop the scanning of the magnetic sensor module 11, and drive the screw 62 to rotate through the motor 61, so that the receiving part 5 drives the magnetic sensor module 11 along the first A sliding rail 21 moves and is positioned at a calibration position by a calibration positioning mark 24 .
  • S200 Start scanning of the magnetic sensor module, and acquire a calibration signal of each magnetic sensitive element.
  • Fig. 12 shows the first 4 magnetic sensitive elements 112 as an example (Marked as pix1-pix4)
  • S300 Determine a calibration offset value of each of the magnetic sensitive elements according to the calibration signal and a preset calibration target value.
  • the above calibration offset values are stored in the processing unit 114 for use in subsequent steps.
  • the scanning of the magnetic sensor module 11 is stopped, and the motor 61 drives the screw 62 to rotate, so that the receiving part 5 drives the magnetic sensor module 11 to move along the first slide rail 21 and is positioned to the detection position by detecting the positioning mark 23. location.
  • S500 Start the movement of the steel cord and the scanning of the magnetic sensor module to obtain a detection signal of each of the magnetic sensitive elements.
  • the transmission mechanism of the steel cord 4 is turned on to restore the movement of the steel cord 4, the scanning of the magnetic sensor module 11 is started, and the magnetic field signals of 216 magnetic sensitive elements 112 at the detection positions are obtained as detection signals, so as to Taking pix1-pix4 as an example, the detection signals obtained are respectively: C1, C2, C3, and C4.
  • S600 Determine a calibrated detection signal of each of the magnetic sensitive elements according to the detection signal and the calibration deviation value.
  • the detection signals acquired by 216 magnetic sensitive elements 112 are subtracted from the corresponding calibration deviation values to obtain 216 calibrated detection signals.
  • steps S100 to S400 are the steps to obtain the calibration information of the magnetic sensitive element 112, which is executed before the first installation and operation or every time the initial excitation magnetic field changes due to environmental changes, and the obtained calibration deviation value is stored in the processing unit 114 for The subsequent detection results are calibrated.
  • Steps S500 and S600 are the steps of continuously detecting the steel cord 4. With the movement of the steel cord 4, the magnetic sensor continuously scans and uses the calibration deviation value to calibrate the detection results and output the post-calibration detection
  • the above-mentioned calibrated detection signal can be processed by a subsequent magnetic image generation unit to generate a magnetic field image of the steel cord, and the defect information in it can also be identified by a subsequent defect detection unit.
  • the lower part of Fig. 12 also shows the output results after the calibration process is performed on the calibration signal obtained by the magnetic sensor 112 at the calibration position.
  • the detection and calibration method of the embodiment eliminates signal fluctuations caused by the inhomogeneity of the magnetic sensitive element 112 and the magnetic field unit, so that the amplitude change of the final output signal is only related to factors such as the shape, angle, and spacing of the steel cords, and the steel cords
  • the background of the detection signal of 4 and the subsequent generated magnetic field image are uniform, and the effective information is prominent, which improves the accuracy and reliability of detection.
  • Embodiment 2 provides another embodiment of the steel cord detection and calibration device of the present application.
  • FIG. 6 is a schematic diagram of this embodiment in a detection state
  • FIG. 7 is a schematic diagram of this embodiment in a calibration state
  • FIG. 8 is a schematic diagram of this embodiment side view.
  • the difference between this embodiment and Embodiment 1 is that a first opposing magnetic module 12 and a second slide rail 22 are added, and the first opposing magnetic module 12 is arranged on the back side of the steel cord 4.
  • One side of the magnetic sensor module 11 includes a first opposing magnetic unit 121 arranged along the Y-axis direction and a first opposing magnetic module frame 122 for inserting and fixing the first opposing magnetic unit 121, the first pair
  • the magnetic module frame 122 is made of non-magnetic and non-magnetized material;
  • the second slide rail 22 is parallel and equal to the first slide rail 21;
  • the projections on the web are coincident; the first opposing magnetic module 12 is overlapped on the second slide rail 22 and can reciprocally slide along the second slide rail 22 .
  • the connecting line between the first opposing magnetic module 12 and the magnetic sensor module 11 is always perpendicular to the width of the steel cord 4, that is: the first opposing magnetic module 12 and the The magnetic sensor module 11 is arranged opposite to the steel cord 4 and moves synchronously.
  • Embodiment 3 provides another embodiment of the steel cord detection and calibration device of the present application.
  • FIG. 9 is a schematic diagram of this embodiment in a detection state
  • FIG. 10 is a schematic diagram of this embodiment in a calibration state.
  • the difference between this embodiment and Embodiment 2 is that a second opposing magnetic module 13 is added.
  • the first opposing magnetic module 12 is positioned at the detection position
  • the second The opposing magnetic module 13 is positioned at the calibration position, and includes a second opposing magnetic unit arranged along the Y axis and a second opposing magnetic module frame for placing and fixing the second opposing magnetic unit.
  • the module frame is made of non-magnetic and non-magnetized material, the first magnetic unit and the second magnetic unit are both of strong magnetic structure, and have the same magnetic field characteristics.

Abstract

L'invention concerne un dispositif d'essai et d'étalonnage et un procédé d'essai et d'étalonnage pour un tissu de fil métallique (4), pour une utilisation dans l'obtention d'un signal d'essai pour un tissu de fil métallique (4) et la réalisation d'un étalonnage au moyen d'un signal d'étalonnage. Le dispositif d'essai et d'étalonnage pour un tissu de fil métallique (4) comprend: un ensemble d'essai, un ensemble rail coulissant et un support (3). L'ensemble d'essai comprend un module de capteur magnétique (11). Le module de capteur magnétique (11) n'est pas dans le même plan que le tissu de fil métallique (4), et comprend un substrat (111), une pluralité d'éléments sensibles magnétiques (112), une unité de traitement (114) et une unité magnétique arrière (113). L'ensemble rail coulissant comprend un premier rail coulissant (21) s'étendant dans une direction prédéfinie. Le module de capteur magnétique (11) chevauche le premier rail de coulissement (21) et peut coulisser le long du premier rail de coulissement (21) en un mouvement de va-et-vient. Le support (3) est utilisé pour le support et la fixation l'ensemble rail coulissant. Le dispositif d'essai et d'étalonnage pour un tissu de fil métallique (4) peut efficacement éviter l'influence de câbles d'acier magnétisés dans le tissu de fil métallique (4) sur un dispositif d'essai, et est d'utilisation pratique, facile à mettre en oeuvre et à précision d'étalonnage élevée.
PCT/CN2022/091912 2021-12-07 2022-05-10 Dispositif d'essai et d'étalonnage et procédé d'essai et d'étalonnage pour tissu de fil métallique WO2023103276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111489098.8 2021-12-07
CN202111489098.8A CN114166930B (zh) 2021-12-07 2021-12-07 一种钢丝帘布检测校准装置及检测校准方法

Publications (1)

Publication Number Publication Date
WO2023103276A1 true WO2023103276A1 (fr) 2023-06-15

Family

ID=80484202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/091912 WO2023103276A1 (fr) 2021-12-07 2022-05-10 Dispositif d'essai et d'étalonnage et procédé d'essai et d'étalonnage pour tissu de fil métallique

Country Status (2)

Country Link
CN (1) CN114166930B (fr)
WO (1) WO2023103276A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114166930B (zh) * 2021-12-07 2024-03-01 威海华菱光电股份有限公司 一种钢丝帘布检测校准装置及检测校准方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005061940A (ja) * 2003-08-11 2005-03-10 Jfe Steel Kk アレイ型磁気センサの校正方法および装置
JP2009014678A (ja) * 2007-07-09 2009-01-22 Toshiba Corp アレイ型磁気探傷装置の校正装置、及びその校正方法
CN101382993A (zh) * 2008-10-17 2009-03-11 威海华菱光电有限公司 磁图像读取装置
CN104655714A (zh) * 2014-12-05 2015-05-27 广州丰谱信息技术有限公司 基于宽频磁波反射通路参数辨识的检测与成像方法及装置
US20150160326A1 (en) * 2012-07-06 2015-06-11 Giesecke & Devrient Gmbh Calibration of a Magnetic Sensor
CN105092698A (zh) * 2015-09-11 2015-11-25 威海山河电气有限公司 轮胎胎体钢丝帘布无损检测装置及方法
JP2016061709A (ja) * 2014-09-19 2016-04-25 株式会社東芝 アレイ型磁気探傷装置、及びその校正方法
CN105527338A (zh) * 2015-10-26 2016-04-27 华南理工大学 一种金属丝绳的在线监测方法及装置
JP2018044796A (ja) * 2016-09-12 2018-03-22 株式会社東芝 磁気探傷装置
CN110770539A (zh) * 2018-07-26 2020-02-07 深圳市大疆创新科技有限公司 磁传感器校准方法、控制终端以及可移动平台
CN113624832A (zh) * 2021-09-03 2021-11-09 威海华菱光电股份有限公司 钢丝帘布缺陷检测系统
CN114166930A (zh) * 2021-12-07 2022-03-11 威海华菱光电股份有限公司 一种钢丝帘布检测校准装置及检测校准方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108051497B (zh) * 2018-02-11 2024-01-26 西安科技大学 一种用于岩体裂隙分布检测的三维磁场扫描系统及方法
CN108407847A (zh) * 2018-05-10 2018-08-17 南京航空航天大学 一种钢轨表面探伤信号采集的装置
CN108680640A (zh) * 2018-06-19 2018-10-19 南京航空航天大学 基于反磁化消除漏磁的钢轨表面探伤信号采集装置
CN112816546B (zh) * 2021-02-03 2024-04-30 中海石油(中国)有限公司 一种三轴漏磁内检测器整机传感器校正装置及校正方法
CN216696162U (zh) * 2021-12-07 2022-06-07 威海华菱光电股份有限公司 一种钢丝帘布检测校准装置

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005061940A (ja) * 2003-08-11 2005-03-10 Jfe Steel Kk アレイ型磁気センサの校正方法および装置
JP2009014678A (ja) * 2007-07-09 2009-01-22 Toshiba Corp アレイ型磁気探傷装置の校正装置、及びその校正方法
CN101382993A (zh) * 2008-10-17 2009-03-11 威海华菱光电有限公司 磁图像读取装置
US20150160326A1 (en) * 2012-07-06 2015-06-11 Giesecke & Devrient Gmbh Calibration of a Magnetic Sensor
JP2016061709A (ja) * 2014-09-19 2016-04-25 株式会社東芝 アレイ型磁気探傷装置、及びその校正方法
CN104655714A (zh) * 2014-12-05 2015-05-27 广州丰谱信息技术有限公司 基于宽频磁波反射通路参数辨识的检测与成像方法及装置
CN105092698A (zh) * 2015-09-11 2015-11-25 威海山河电气有限公司 轮胎胎体钢丝帘布无损检测装置及方法
CN105527338A (zh) * 2015-10-26 2016-04-27 华南理工大学 一种金属丝绳的在线监测方法及装置
JP2018044796A (ja) * 2016-09-12 2018-03-22 株式会社東芝 磁気探傷装置
CN110770539A (zh) * 2018-07-26 2020-02-07 深圳市大疆创新科技有限公司 磁传感器校准方法、控制终端以及可移动平台
CN113624832A (zh) * 2021-09-03 2021-11-09 威海华菱光电股份有限公司 钢丝帘布缺陷检测系统
CN114166930A (zh) * 2021-12-07 2022-03-11 威海华菱光电股份有限公司 一种钢丝帘布检测校准装置及检测校准方法

Also Published As

Publication number Publication date
CN114166930A (zh) 2022-03-11
CN114166930B (zh) 2024-03-01

Similar Documents

Publication Publication Date Title
CN216696162U (zh) 一种钢丝帘布检测校准装置
WO2023103277A1 (fr) Dispositif et procédé de détection et d'étalonnage de pli de câbles d'acier
WO2018157015A1 (fr) Système de mesure de contrainte sans contact et son procédé d'utilisation
CN103424088B (zh) 一种倒角测量仪
TWI289195B (en) Method and apparatus for measuring object thickness
WO2023103276A1 (fr) Dispositif d'essai et d'étalonnage et procédé d'essai et d'étalonnage pour tissu de fil métallique
JP5923054B2 (ja) 形状検査装置
CN109099849A (zh) 对射激光测高机构及对射激光测高方法
CN216449481U (zh) 一种钢丝帘布检测校准装置
JP6768305B2 (ja) 探傷装置および探傷方法
JP5384412B2 (ja) 検査装置および検査方法
JP2003254742A (ja) モータコア内径測定装置及び方法
CN101133298A (zh) 用于检测机械部件的位置和/或形状的设备和方法
JP4599728B2 (ja) 非接触膜厚測定装置
JP2002148026A (ja) ３次元形状測定装置、３次元情報計測方法及び薄膜評価測定方法
JP4761730B2 (ja) 回転軸連結継手調整支援装置および回転軸連結継手調整方法
KR102010645B1 (ko) 와전류를 이용한 검사 모듈, 지그, 검사 장치 및 검사 방법
JP2006098251A (ja) 形状測定装置および形状測定方法
TWI735337B (zh) 線性位移校正方法及使用其方法的檢測設備
JP2003114102A (ja) 膜厚測定方法及び装置
US20220381660A1 (en) Systems and methods for error correction for video extensometers
JP2019015694A (ja) 処理装置、基板検査装置、処理方法および基板検査方法
JPH11248428A (ja) 光学式伸び計用校正装置
KR20000034456A (ko) 3차원 물체의 형상 및 치수검사장치
JPH10122837A (ja) 形鋼のオンライン測定装置の校正方法および装置、並びに校正治具搭載用架台

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22902716

Country of ref document: EP

Kind code of ref document: A1