CN213041780U - Three-dimensional electromagnetic detection array sensor - Google Patents
Three-dimensional electromagnetic detection array sensor Download PDFInfo
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- CN213041780U CN213041780U CN202022158595.7U CN202022158595U CN213041780U CN 213041780 U CN213041780 U CN 213041780U CN 202022158595 U CN202022158595 U CN 202022158595U CN 213041780 U CN213041780 U CN 213041780U
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Abstract
The utility model discloses a three-dimensional electromagnetic detection array sensor, include: a first fixing plate; one end of the first fixing plate is connected with the second fixing plate; a sensor array is arranged on the second fixing plate; the sensor array comprises a plurality of sensor probes; the sensor probe includes: the base is connected with the square column, and an annular positioning groove is formed in the joint between the base and the square column; a first magnetic resistance sensor and a second magnetic resistance sensor are mounted at one end, far away from the base, of the square column; two sides of the second fixing plate are respectively connected with the first metal plate and the second metal plate; and a plurality of mounting holes are symmetrically formed in the first metal plate and the second metal plate.
Description
Technical Field
The utility model relates to a magnetic leakage detects technical field, especially relates to three-dimensional electromagnetic detection array sensor.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In modern life, articles made of metal materials are widely applied to the life of everyone. However, in the manufacturing and use process, errors in the manufacturing process or impurity interference of the material and fatigue caused by excessive use times can cause cracks, so that the material can be failed and damaged, accidents can be caused, and the method has a great threat to the property of people. The research of the nondestructive testing technology aims to find various defects existing in the equipment, predict various possible accidents early and prevent the accidents early. In recent years, accidents which occur due to the fact that the safety performance of equipment cannot reach the use standard are increased, so that a plurality of safety production accidents are caused, and better requirements are put forward for development and research of nondestructive testing technology. Nondestructive testing, the object of testing is the micro-defects existing in the equipment used, and if the defects are not found, the defects will finally cause macroscopic cracks, destroy the mechanical service performance and cause safety accidents.
Magnetic flux leakage detection is developed more and more mature after years of development, more and more sensors are adopted, and a coil, a Hall device, an AMR sensor, a giant magnetoresistance sensor and the like are used as measuring tools. The current more common sensor elements are coils, hall devices and AMR, and more recently TMR with higher sensitivity has been developed.
The magnetic flux leakage detection mainly adopts the following modes: and (4) detecting by using a single sensor.
The single sensor has few measuring points and limited data measured at one time, but in reality, the magnetic field is continuous, so the single sensor has poor measuring effect and cannot completely reflect the information of the measured magnetic field. The single sensor is of limited size, such as a coil, and measures the average stray field strength. The sensor has the advantages of small detection area, low efficiency, simple detection circuit and easy occurrence of missed detection. With the development of modern detection technology, the detection requirement is higher and higher, and the single-point measurement in defect detection cannot meet the requirement of industrial development.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model provides a three-dimensional electromagnetic detection array sensor, which has the advantages of good performance, high detection precision, capability of realizing three-dimensional detection and simple and firm installation;
a three-dimensional electromagnetic detection array sensor, comprising: a first fixing plate;
one end of the first fixing plate is connected with the second fixing plate;
a sensor array is arranged on the second fixing plate; the sensor array comprises a plurality of sensor probes;
the sensor probe includes: the base is connected with the square column, and an annular positioning groove is formed in the joint between the base and the square column; a first magnetic resistance sensor and a second magnetic resistance sensor are mounted at one end, far away from the base, of the square column;
two sides of the second fixing plate are respectively connected with the first metal plate and the second metal plate;
and a plurality of mounting holes are symmetrically formed in the first metal plate and the second metal plate.
Compared with the prior art, the beneficial effects of the utility model are that:
the sensitive magnetoresistive sensors are adopted to form the probe with an array structure, large-area scanning can be carried out during detection, weak magnetic field signals in space are extracted, effective image signals are obtained through conversion, and the detection efficiency and the detection precision are effectively improved.
The measurement sensitivity of the array probe formed by combining the magnetoresistive sensors meets the requirements of magnetic flux leakage measurement and magnetic field measurement of the magnetized ferromagnetic material; the distribution condition of the magnetic field can be restored by measuring the three-dimensional signals; the array probe combination enlarges the scanning measurement range, is convenient for positioning the defects and realizes the three-dimensional image imaging of the magnetic field.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a three-dimensional layout of a single probe according to a first embodiment;
FIG. 2 is an assembly view of the array probe according to the first embodiment;
fig. 3 is a schematic operation diagram of the first embodiment.
The sensor comprises a first magnetic resistance sensor 1, a first magnetic resistance sensor 2, a second magnetic resistance sensor 3, a square column 4, a base 5, a second fixing plate 6, a first metal plate 7, a second metal plate 8, a first fixing plate 9 and a sensor array.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Magnetic flux leakage detection is an important detection method in nondestructive testing. The detection method is characterized in that a magnetized workpiece is scanned through a magnetic sensor, and the distribution condition of the surface magnetic field is obtained by measuring the magnetic field on the surface of the workpiece, so that the structural change condition of the surface or subsurface of the workpiece is determined. The method has important significance for detecting industrial surface cracks, and particularly has important reference significance for some situations that whether cracks occur or not in the interior needs to be measured from the outside.
As shown in fig. 1 and 2, the three-dimensional electromagnetic detection array sensor includes: a first fixing plate 8;
one end of the first fixing plate is connected with the second fixing plate 5;
a sensor array is arranged on the second fixing plate; the sensor array 9 comprises a plurality of sensor probes;
the sensor probe includes: the base is connected with the square column, and an annular positioning groove is formed in the joint between the base 4 and the square column 3; a first magnetic resistance sensor and a second magnetic resistance sensor are mounted at one end, far away from the base, of the square column;
two sides of the second fixing plate are respectively connected with a first metal plate 6 and a second metal plate 7;
and a plurality of mounting holes are symmetrically formed in the first metal plate and the second metal plate.
Further, the first fixing plate is an L-shaped metal plate.
Further, the second fixing plate is a rectangular metal plate.
Furthermore, the first fixing plate is fixedly connected with the three-dimensional scanning table.
Further, the sensor array is a 4 x 4 sensor array.
Further, the first magnetoresistive sensor 1 is a uniaxial magnetoresistive sensor HMC 1021.
Further, the second magneto resistive sensor 2 is a dual axis magneto resistive sensor HMC 1022.
The single-axis magnetoresistive sensor HMC1021 and the dual-axis magnetoresistive sensor HMC1022 can simultaneously pick up X, Y, Z magnetic field strength components in three directions.
Further, the mounting hole is a square mounting hole.
Further, the mounting holes are used for fixing input and output ports of the sensor array.
Furthermore, the center of the base is provided with an opening, the sensor is connected with the input and output ports of the sensor array through a lead, and the lead penetrates through the opening in the center of the base.
Furthermore, the input port and the output port of the sensor array are connected with a computer through a collection card.
Furthermore, a plurality of mounting grooves are formed in the second fixing plate, and all the mounting grooves form a rectangular array form; each sensor probe is mounted in a mounting slot.
As shown in fig. 3, in the working process, the test piece is firstly installed on the magnetic excitation table, then the three-dimensional electromagnetic detection array sensor is fixed on the three-dimensional scanning table, the three-dimensional electromagnetic detection array sensor is driven by the three-dimensional scanning table to move on the magnetized test piece, the acquired electromagnetic signals are amplified and filtered by acquiring the electromagnetic signals, and finally the electromagnetic signals are transmitted to the computer to realize the crack detection of the test piece.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. Three-dimensional electromagnetic detection array sensor, characterized by includes: a first fixing plate;
one end of the first fixing plate is connected with the second fixing plate;
a sensor array is arranged on the second fixing plate; the sensor array comprises a plurality of sensor probes;
the sensor probe includes: the base is connected with the square column, and an annular positioning groove is formed in the joint between the base and the square column; a first magnetic resistance sensor and a second magnetic resistance sensor are mounted at one end, far away from the base, of the square column;
two sides of the second fixing plate are respectively connected with the first metal plate and the second metal plate;
and a plurality of mounting holes are symmetrically formed in the first metal plate and the second metal plate.
2. The three-dimensional electromagnetic detection array sensor of claim 1, wherein the first fixing plate is an L-shaped metal plate.
3. The three-dimensional electromagnetic detection array sensor of claim 1, wherein the second fixing plate is a rectangular parallelepiped metal plate.
4. The three-dimensional electromagnetic detection array sensor of claim 1, wherein the first fixing plate is fixedly connected to the three-dimensional scanning stage.
5. The three-dimensional electromagnetic detection array sensor of claim 1, wherein the sensor array is a 4 x 4 sensor array.
6. The three-dimensional electromagnetic sensing array sensor of claim 1, wherein the first magnetoresistive sensor is a single-axis magnetoresistive sensor HMC 1021; the second magnetoresistive sensor is a dual-axis magnetoresistive sensor HMC 1022.
7. The three-dimensional electromagnetic detection array sensor of claim 1, wherein the mounting holes are square mounting holes.
8. The three-dimensional electromagnetic sensing array sensor of claim 1, wherein the mounting holes are for securing input and output ports of the sensor array.
9. The three-dimensional electromagnetic sensing array sensor of claim 1, wherein the base has an opening in the center thereof, and wherein the sensor is connected to the input and output ports of the sensor array by wires passing through the opening in the center of the base.
10. The three-dimensional electromagnetic detection array sensor according to claim 1, wherein the second fixing plate is provided with a plurality of mounting slots, and all the mounting slots form a rectangular array; each sensor probe is mounted in a mounting slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022158595.7U CN213041780U (en) | 2020-09-27 | 2020-09-27 | Three-dimensional electromagnetic detection array sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022158595.7U CN213041780U (en) | 2020-09-27 | 2020-09-27 | Three-dimensional electromagnetic detection array sensor |
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| Publication Number | Publication Date |
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| CN213041780U true CN213041780U (en) | 2021-04-23 |
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| CN202022158595.7U Expired - Fee Related CN213041780U (en) | 2020-09-27 | 2020-09-27 | Three-dimensional electromagnetic detection array sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115014624A (en) * | 2022-05-30 | 2022-09-06 | 沈阳工业大学 | High-precision triaxial array type weak magnetic stress internal detection probe |
-
2020
- 2020-09-27 CN CN202022158595.7U patent/CN213041780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115014624A (en) * | 2022-05-30 | 2022-09-06 | 沈阳工业大学 | High-precision triaxial array type weak magnetic stress internal detection probe |
| CN115014624B (en) * | 2022-05-30 | 2024-02-20 | 沈阳工业大学 | High-precision triaxial array type weak magnetic stress internal detection probe |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210423 Termination date: 20210927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |