Array eddy current detection device and method

Abstract

The invention discloses an array eddy current detection device and method. The device comprises a probe row socket, a probe drive controller, an operating handle, and a plurality of flexible eddy current sensors. The plurality of flexible eddy current sensor arrays are distributed and connected to and fixed on the probe row socket. The probe row socket is plugged into a probe drive controller connected to an operating handle. During detection, the operating handle is held and manually driven to drive the probe drive controller to drive the plurality of flexible eddy current sensors to perform moving scanning and detection on the surface of a detected object. If a defect is found in the detected object, the probe drive controller gives an alarm, and an operator reads and records the defect information from a display screen on the probe drive controller, including the location, size, and depth of the defect, thereby completing the detection. Compared with a tiny eddy current detection probe, the detection device of the invention has the advantages of being simple and easy to use, convenient to replace, and low cost. The detection method is fast, accurate, and efficient, and the problem of low cost and consistent processing of tiny eddy current probes is solved from a process perspective.

Description

Technical Field

[0001] The present invention relates to an eddy current detection device and method, and in particular to an array eddy current detection device and method. Background Art

[0002] In recent years, with the advancement of science and technology, array eddy current testing has been increasingly used in various industrial fields. However, due to its relatively complex manufacturing and high cost, it is not widely used, especially for magnetic particle testing, a relatively primitive detection method. Many application occasions, such as railway tracks, wheels, and parts, can use eddy current method to reduce environmental pollution, improve work efficiency, and facilitate the storage and retrieval of detection data. Therefore, it is necessary to develop an array eddy current detection device and detection method with simple process, low cost, and suitable for various detection occasions. Summary of the invention

[0003] The purpose of the present invention is to solve the problems mentioned in the above background technology part through an array eddy current detection device and method.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] An array eddy current detection device, characterized in that it includes a probe row socket, a probe drive controller, an operating handle, and a plurality of flexible eddy current sensors; one side of the probe row socket is provided with a plurality of array-distributed sensor sockets, and the other side is provided with sensor channels corresponding to the plurality of array-distributed sensor sockets, and a limiting slide is provided between the sensor sockets and the sensor channels, and a self-locking buckle is provided in the limiting slide; the front end of the probe drive controller is provided with a plurality of array-distributed jacks matching the plurality of array-distributed sensor sockets on the probe row socket, a display screen is provided on the top surface of the probe drive controller, a signal analysis and processing unit is provided inside the probe drive controller, and the rear end of the probe drive controller is connected to the operating handle; The probe row socket is plugged into the probe drive controller, and each sensor socket on the probe row socket is respectively connected to a flexible eddy current sensor; the flexible eddy current sensor includes a magnetic bead, a coil, and a thin steel wire; a plurality of magnetic bead sockets are arranged on the upper end surface of the magnetic bead, and a conductive film is plated on the surface of each magnetic bead socket; the coil is an eddy current detection coil and is wound on the magnetic bead, and each end lead of the coil is connected to the magnetic bead socket; there are multiple thin steel wires, one end of which passes through the sensor channel and the limiting slide of the probe row socket in turn and is plugged into the sensor socket on the probe row socket, and the other end is plugged and fixed on the magnetic bead socket, the thin steel wire is used as a conductor for signal transmission and plays a flexible and elastic role, and the thin steel wire has a self-locking function under the action of the self-locking buckle in the limiting slide.

[0006] The flexible eddy current sensor can be used as a cloud detection terminal with wireless Internet access function and can be connected to a cloud detection platform, that is, it has the characteristics of an intelligent sensor in a cloud detection system.

[0007] An array eddy current detection method, using the above detection device, is characterized by comprising the following steps:

[0008] a. Insert the thin steel wires of multiple flexible eddy current sensors into the sensor sockets fixed on the probe row socket plugged into the probe drive controller through conductive glue to complete the assembly of the detection device;

[0009] b. Holding the operating handle to control the detection device, the detection surfaces of the multiple flexible eddy current sensors distributed in the array in the detection device are placed closely on the surface of the object to be measured. Since the thin steel wire is flexible and elastic and has a self-locking function, the detection surfaces of the multiple flexible eddy current sensors can be adaptively and closely attached to the surface of the object to be measured;

[0010] c. Holding the operating handle, manually driving the probe drive controller to drive multiple flexible eddy current sensors to move and scan the surface of the object to be tested. During this process, the eddy current signal of the flexible eddy current sensor is transmitted to the signal analysis and processing unit of the probe drive controller through a thin steel wire for analysis and processing, and the detection result is output and displayed on the display screen set on the top surface of the probe drive controller. At the same time, if defects are found in the object to be tested, the probe drive controller will alarm;

[0011] d. During the scanning and inspection of the object to be tested, once the probe drive controller has an alarm prompt, the operator reads and records the defect information from the display screen set on the top surface of the probe drive controller, including the location, size, and depth of the defect. In this way, the object to be tested can be inspected quickly, accurately, and efficiently.

[0012] The beneficial effect of the present invention is that an array eddy current detection device and method are provided, the device includes a probe row socket, a probe drive controller, an operating handle, and multiple flexible eddy current sensors. The multiple flexible eddy current sensor arrays are distributed and connected to the probe row socket, and the probe row socket is plugged into the probe drive controller connected to the operating handle. During detection, the operating handle is held and manually driven to drive the probe drive controller to drive multiple flexible eddy current sensors to move and scan the surface of the object to be detected. If defects are found in the object to be detected, the probe drive controller will alarm and prompt, and the operator will read and record the information of the defect from the display screen on the probe drive controller, including the location, size, and depth of the defect, thereby completing the detection. If a certain flexible eddy current sensor in the detection device is damaged, it is only necessary to pull out the thin steel wire and replace it with a new flexible eddy current sensor. Compared with the micro eddy current detection probe, the detection device of the present invention has the advantages of being simple and easy to use, convenient to replace, and low cost, and the detection method is fast, accurate, and efficient. The present invention solves the low cost and consistency processing problems of micro eddy current probes from a process perspective.

[0013] The present invention is further described in detail below in conjunction with embodiments, but the array eddy current detection device and method of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of an array eddy current detection device according to Example 1 of the present invention.

[0016] Figure 2 This is a schematic diagram of the decomposition of an array eddy current detection device according to Example 1 of the present invention.

[0017] Figure 3 This is a schematic diagram of a detection method for using the detection device of Example 2 of the present invention for rail detection.

[0018] Figure 4 It is a schematic diagram of a detection method for wheel detection using the detection device of embodiment 3 of the present invention.

[0019] In the figure, 1. probe row socket, 11. sensor socket, 12. sensor channel, 13. limit slide, 130. self-locking buckle, 2. probe drive controller, 21. jack, 22. display screen, 3. operating handle, 4. flexible eddy current sensor, 41. magnetic bead, 410. magnetic bead socket, 42. coil, 43. thin steel wire, 5. rail, 50. surface of the rail to be inspected, 6. wheel, 60. surface of the wheel to be inspected. DETAILED DESCRIPTION

[0020] Embodiment 1, as Figure 1 ,2 As shown, an array eddy current detection device is characterized in that it includes a probe row socket 1, a probe drive controller 2, an operating handle 3, and a plurality of flexible eddy current sensors 4; one side of the probe row socket 1 is provided with a plurality of array-distributed sensor sockets 11, and the other side is provided with sensor channels 12 corresponding to the plurality of array-distributed sensor sockets 11, and a limiting slide 13 is provided between the sensor sockets 11 and the sensor channels 12, and a self-locking buckle 130 is provided in the limiting slide 13; the front end of the probe drive controller 2 is provided with a plurality of array-distributed jacks 21 matching the plurality of array-distributed sensor sockets 11 on the probe row socket 1, a display screen 22 is provided on the top surface of the probe drive controller 2, a signal analysis and processing unit is provided inside the probe drive controller 2, and the rear end of the probe drive controller 2 is connected to the operating handle 3; the probe row socket socket 1 Connected to the probe drive controller 2, each sensor socket 11 on the probe row socket 1 is connected to a flexible eddy current sensor 4; the flexible eddy current sensor 4 includes a magnetic bead 41, a coil 42, and a thin steel wire 43; the upper end surface of the magnetic bead 41 is provided with a plurality of magnetic bead sockets 410, and the surface of each magnetic bead socket 410 is plated with a conductive film; the coil 42 is an eddy current detection coil and is wound around the magnetic bead 41, and the leads of each end of the coil 42 are connected to the magnetic bead socket 410; there are multiple thin steel wires 43, one end of which passes through the sensor channel 12 and the limiting slide groove 13 of the probe row socket 1 in sequence and is plugged into the sensor socket 11 on the probe row socket 1, and the other end is plugged and fixed to the magnetic bead socket 410, the thin steel wire 43 is used as a conductor for signal transmission and plays a flexible and elastic role, and the thin steel wire 43 has a self-locking function under the action of the self-locking buckle 130 in the limiting slide groove 13.

[0021] The flexible eddy current sensor 4 can be used as a cloud detection terminal with wireless Internet access function and can be connected to the cloud detection platform, that is, it has the characteristics of an intelligent sensor in the cloud detection system.

[0022] Embodiment 2, as Figure 1 , 2 As shown in , 3, an array eddy current detection method, using the above detection device, is characterized in that it includes the following steps:

[0023] a. The thin steel wires 43 of the plurality of flexible eddy current sensors 4 are respectively inserted into the respective sensor sockets 11 fixed to the probe row socket 1 plugged into the probe drive controller 2 through the conductive glue to complete the assembly of the detection device;

[0024] b. Holding the operating handle 3 to control the detection device, the detection surfaces of the multiple flexible eddy current sensors 4 distributed in the array in the detection device are placed closely on the surface 50 of the part to be inspected of the rail 5. Since the thin steel wire 43 is flexible and elastic and has a self-locking function, the detection surfaces of the multiple flexible eddy current sensors 4 can adaptively and closely adhere to the surface 50 of the part to be inspected of the rail 5;

[0025] c. Holding the operating handle 3, manually driving the probe driving controller 2 to drive the multiple flexible eddy current sensors 4 to move and scan the surface 50 of the to-be-tested part of the rail 5. During this process, the eddy current signal detected by the flexible eddy current sensor 4 is transmitted to the signal analysis and processing unit of the probe driving controller 2 through the thin steel wire 43 for analysis and processing, and the detection result is output and displayed on the display screen 22 arranged on the top surface of the probe driving controller 2. At the same time, if a defect is found on the surface 50 of the to-be-tested part of the rail 5, the probe driving controller 2 will give an alarm;

[0026] d. During the scanning and inspection of the rail 5, once the probe drive controller 2 has an alarm prompt, the operator reads and records the defect information from the display screen 22 arranged on the top surface of the probe drive controller 2, including the location, size, and depth of the defect. In this way, the rail 5 can be inspected quickly, accurately, and efficiently.

[0027] Embodiment 3, as Figure 1 , 2 As shown in , an array eddy current detection method, using the above detection device, is characterized in that it includes the following steps:

[0028] a. The thin steel wires 43 of the plurality of flexible eddy current sensors 4 are respectively inserted into the respective sensor sockets 11 fixed to the probe row socket 1 plugged into the probe drive controller 2 through the conductive glue to complete the assembly of the detection device;

[0029] b. Holding the operating handle 3 to control the detection device, the detection surfaces of the multiple flexible eddy current sensors 4 distributed in the array in the detection device are placed closely on the surface 60 of the part to be detected of the wheel 6. Since the thin steel wire 43 is flexible and elastic and has a self-locking function, the detection surfaces of the multiple flexible eddy current sensors 4 can be adaptively closely attached to the surface 60 of the part to be detected of the wheel 6;

[0030] c. The probe driving controller 2 is manually driven by holding the operating handle 3 to drive the multiple flexible eddy current sensors 4 to move and scan the surface 60 of the wheel 6 to be inspected. During this process, the eddy current signal detected by the flexible eddy current sensor 4 is transmitted to the signal analysis and processing unit of the probe driving controller 2 through the thin steel wire 43 for analysis and processing, and the detection result is output and displayed on the display screen 22 set on the top surface of the probe driving controller 2. At the same time, if a defect is found on the surface 60 of the wheel 6 to be inspected, the probe driving controller 2 will alarm;

[0031] d. During the scanning and inspection of the wheel 6, once the probe drive controller 2 has an alarm prompt, the operator reads and records the defect information from the display screen 22 set on the top surface of the probe drive controller 2, including the location, size, and depth of the defect. In this way, the wheel 6 can be inspected quickly, accurately, and efficiently.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Without departing from the design spirit of the present invention, any modification, equivalent substitution and improvement made to the technical solution of the present invention by any technician in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An array eddy current detection device, characterized in that: It includes a probe row socket, a probe drive controller, an operating handle, and a plurality of flexible eddy current sensors; one side of the probe row socket is provided with a plurality of array-distributed sensor sockets, and the other side is provided with sensor channels corresponding to the plurality of array-distributed sensor sockets, and a limiting slide is provided between the sensor sockets and the sensor channels, and a self-locking buckle is provided in the limiting slide; the front end of the probe drive controller is provided with a plurality of array-distributed jacks matching the plurality of array-distributed sensor sockets on the probe row socket, a display screen is provided on the top surface of the probe drive controller, a signal analysis and processing unit is provided inside the probe drive controller, and the rear end of the probe drive controller is connected to the operating handle; the probe row socket is plugged into To the probe drive controller, each sensor socket on the probe row socket is respectively connected to a flexible eddy current sensor; the flexible eddy current sensor includes a magnetic bead, a coil, and a thin steel wire; a plurality of magnetic bead sockets are arranged on the upper end surface of the magnetic bead, and a conductive film is coated on the surface of each magnetic bead socket; the coil is an eddy current detection coil and is wound around the magnetic bead, and each end of the coil is connected to the magnetic bead socket; there are multiple thin steel wires, one end of which passes through the sensor channel and the limiting slide of the probe row socket in turn and is plugged into the sensor socket on the probe row socket, and the other end is plugged and fixed on the magnetic bead socket, the thin steel wire is used as a conductor for signal transmission and plays a flexible and elastic role, and the thin steel wire has a self-locking function under the action of the self-locking buckle in the limiting slide.

2. An array eddy current detection device according to claim 1, characterized in that: The flexible eddy current sensor serves as a cloud detection terminal with a wireless Internet access function and is connected to a cloud detection platform, that is, it has the characteristics of an intelligent sensor in a cloud detection system.

3. An array eddy current detection method, using the device of claim 1, characterized in that: The following steps are included: a. Insert the thin steel wires of multiple flexible eddy current sensors into the sensor sockets fixed on the probe row socket plugged into the probe drive controller through conductive glue to complete the assembly of the detection device; b. Holding the operating handle to control the detection device, placing the detection surfaces of the multiple flexible eddy current sensors in the array of the detection device close to the surface of the object to be measured. Since the thin steel wire is flexible and elastic and has a self-locking function, the detection surfaces of the multiple flexible eddy current sensors can adaptively close to the surface of the object to be measured; c. The probe drive controller is manually driven by holding the operating handle to drive multiple flexible eddy current sensors to move and scan the surface of the object to be tested. The eddy current signal of the flexible eddy current sensor is transmitted to the signal analysis and processing unit of the probe drive controller through a thin steel wire for analysis and processing, and the detection result is output and displayed on the display screen set on the top surface of the probe drive controller. At the same time, if the object to be tested is found to have defects, the probe drive controller will alarm; d. During the scanning and inspection of the object to be tested, once the probe drive controller has an alarm prompt, the operator reads and records the defect information from the display screen set on the top surface of the probe drive controller, including the location, size, and depth of the defect. In this way, the object to be tested can be inspected quickly, accurately, and efficiently.

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