Enhanced eddy current sensor

Abstract

The utility model discloses a reinforced eddy current sensor relates to eddy current sensor technical field, including signal processor, sensor probe and positioning adjusting mechanism, the signal processor is connected with sensor probe through the connecting cable, the utility model adopts servo motor drive ball screw to adjust sensor probe, has reduced the complexity of manual operation, and because ball screw has smaller friction coefficient and lower wear, the return gap is smaller in the adjustment process, and the error is smaller when repeating positioning, and, after adjusting, lock through the band brake function of servo motor, compares traditional double nut locking, servo motor initiative lock axle, locking force is big, and the anti -vibration and impact performance is excellent, even in complex environment also can keep stable, thereby can keep the positioning performance of stable, has greatly promoted the precision and reliability of equipment, is applicable to the occasion that sensor probe needs frequently adjusting or precision adjustment.

Description

Technical Field

[0001] This utility model relates to the field of eddy current sensor technology, specifically an enhanced eddy current sensor. Background Technology

[0002] Eddy current sensors are sensors based on the principle of electromagnetic induction. They are widely used in non-contact measurement of various physical quantities of metallic conductors, such as displacement, thickness, rotation speed, and vibration. They can also be used to measure the electrical conductivity of materials and for non-destructive testing. In order to improve the sensitivity and detection distance of eddy current sensors, enhanced eddy current sensors have been developed. Enhanced eddy current sensors usually use flat coils with increased coil diameter or magnetic cores.

[0003] Current enhanced eddy current sensors generally consist of a signal processor and a sensor probe. The sensor probe is connected to the signal processor via wires. During installation, a threaded sleeve is fixed to the sensor probe, and two nuts are threaded onto the sleeve. By tightening the two nuts, the moving parts on the screw are locked and positioned. However, due to machining clearances and assembly errors in the threaded pair, the double-nut locking structure may still have slight displacement after locking, resulting in poor positioning accuracy and repeatability. Moreover, traditional structures mainly rely on friction for locking, and the nuts are prone to loosening over long-term use or in vibrating working environments, affecting the reliability of positioning. Furthermore, manual operation of the two nuts for adjustment and locking is cumbersome and inefficient, making it particularly unsuitable for frequent or precise adjustments. Utility Model Content

[0004] The purpose of this invention is to provide an enhanced eddy current sensor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An enhanced eddy current sensor includes a signal processor, a sensor probe, and a positioning adjustment mechanism. The signal processor is connected to the sensor probe via a connecting cable. The positioning adjustment mechanism is connected to the sensor probe and includes an adjustment block, a servo motor, a ball screw, a slider, a connecting plate, a connecting rod, and a ring. An adjustment block is provided on one side of the sensor probe, and a groove is formed on the side of the adjustment block near the sensor probe. A servo motor is mounted on the upper surface of the adjustment block, and the output end of the servo motor passes through the upper surface of the adjustment block and is fixedly connected to the ball screw via a coupling. The lower end of the ball screw is rotatably connected to the lower surface of the groove. A slider matching the groove is threaded onto the ball screw. A connecting plate is fixedly connected to one side of the slider, and a connecting rod is fixedly connected to one side of the connecting plate. A ring is fixedly connected to the other end of the connecting rod, and the ring is fixedly fitted onto the sensor probe.

[0006] As a further embodiment of this utility model: both sides of the adjusting block are fixedly connected to a fixing plate, and the fixing plate is provided with mounting holes.

[0007] As a further embodiment of this utility model: two symmetrically arranged slide rods are fixedly connected inside the slide groove, and the slider is slidably sleeved on the two slide rods.

[0008] As a further embodiment of this utility model: the slide bar is arranged parallel to the ball screw.

[0009] As a further embodiment of this utility model, the connecting plate is fixedly connected to the slider by multiple screws.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a servo motor to drive a ball screw to adjust the sensor probe, reducing the complexity of manual operation. Furthermore, due to the ball screw's low coefficient of friction and low wear, the backlash during adjustment is small, resulting in less error during repeated positioning. After adjustment, the servo motor's brake function locks the probe. Compared to traditional double-nut locking, the servo motor actively locks the shaft, providing greater locking force and excellent vibration and shock resistance, maintaining stability even in complex environments. This ensures stable positioning performance, greatly improving the equipment's accuracy and reliability, making it suitable for applications requiring frequent or precise sensor probe adjustments. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the positioning and adjustment mechanism in this utility model.

[0012] In the diagram: 1. Signal processor; 2. Sensor probe; 3. Connecting cable; 4. Adjusting block; 5. Servo motor; 6. Ball screw; 7. Slider; 8. Connecting rod; 9. Ring; 10. Slide groove; 11. Connecting plate; 12. Fixing plate; 13. Mounting hole; 14. Slide rod. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-2In this embodiment of the present invention, the enhanced eddy current sensor includes a signal processor 1, a sensor probe 2, and a positioning adjustment mechanism.

[0015] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the signal processor 1 is connected to a sensor probe 2 via a connecting cable 3. A positioning adjustment mechanism is connected to the sensor probe 2. The positioning adjustment mechanism includes an adjustment block 4, a servo motor 5, a ball screw 6, a slider 7, a connecting plate 11, a connecting rod 8, and a ring 9. An adjustment block 4 is provided on one side of the sensor probe 2. A groove 10 is opened on the side of the adjustment block 4 near the sensor probe 2. A servo motor 5 is installed on the upper surface of the adjustment block 4. The output end of the servo motor 5 passes through the upper surface of the adjustment block 4 and is fixedly connected to the ball screw 6 through a coupling. The lower end of the ball screw 6 is rotatably connected to the lower surface of the groove 10. A slider 7 matching the groove 10 is threaded on the ball screw 6. A connecting plate 11 is fixedly connected to one side of the slider 7. A connecting rod 8 is fixedly connected to one side of the connecting plate 11. A ring 9 is fixedly connected to the other end of the connecting rod 8. The ring 9 is fixedly sleeved on the sensor probe 2.

[0016] It should be noted that during use, the adjusting block 4 is installed in the corresponding area to be detected. During operation, the rotation of the servo motor 5 drives the rotation of the ball screw 6. The rotation of the ball screw 6 causes the slider 7 to slide within the groove 10. The sliding of the slider 7, through the connecting plate 11, connecting rod 8, and ring 9, moves the sensor probe 2. The forward and reverse rotation of the servo motor 5 allows for up-and-down adjustment of the sensor probe 2's position. Once the probe is moved to the appropriate position, the brake function of the servo motor 5 locks it in place. In summary, this application is successful; the servo motor 5 drives the ball screw 6 to adjust the sensor probe 2's position. The adjustment of sensor probe 2 reduces the complexity of manual operation. Moreover, due to the low coefficient of friction and low wear of ball screw 6, the backlash during adjustment is small, resulting in smaller errors during repeated positioning. After adjustment, the servo motor 5 is locked by its brake function. Compared with traditional double-nut locking, the servo motor 5 actively locks the shaft, providing a large locking force and excellent resistance to vibration and shock. It can maintain stability even in complex environments, thus maintaining stable positioning performance and greatly improving the accuracy and reliability of the equipment. This is suitable for occasions where sensor probe 2 requires frequent or precise adjustment.

[0017] refer to Figure 2 As shown, both sides of the adjusting block 4 are fixedly connected to a fixing plate 12, and the fixing plate 12 is provided with mounting holes 13, which facilitates disassembly and assembly.

[0018] refer to Figure 2As shown, two symmetrically arranged slide rods 14 are fixedly connected inside the slide groove 10. The slider 7 is slidably sleeved on the two slide rods 14. The slide rods 14 are arranged parallel to the ball screw 6. The slide rods 14 play a limiting and guiding role, making the slider 7 move more smoothly up and down.

[0019] refer to Figure 2 As shown, the connecting plate 11 is fixedly connected to the slider 7 by multiple screws, which facilitates the assembly and disassembly of the connecting plate 11.

[0020] The electrical components mentioned in this article are all connected to the external main controller and 220V AC mains power via transformers. The main controller can be a conventional known device such as a computer for control. The electrical components provided in this utility model are only used in accordance with the structural features of the product in this technical solution. The product will be adjusted and modified after purchase to better match and conform to the technical solution of this utility model. It is an optimal application of this technical solution. The product model can be replaced and modified according to the required technical parameters. It is well known to those skilled in the art. Therefore, those skilled in the art can clearly obtain the corresponding usage effect through the technical solution provided by this utility model.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An enhanced eddy current sensor, characterized in that, include: Signal processor (1); The sensor probe (2) is connected to the signal processor (1) via a connecting cable (3); The positioning adjustment mechanism is connected to the sensor probe (2). The positioning adjustment mechanism includes an adjustment block (4), a servo motor (5), a ball screw (6), a slider (7), a connecting plate (11), a connecting rod (8), and a ring (9). The adjustment block (4) is provided on one side of the sensor probe (2). A groove (10) is opened on the side of the adjustment block (4) near the sensor probe (2). The servo motor (5) is installed on the upper surface of the adjustment block (4). The output end of the servo motor (5) passes through the sensor probe (2). The upper surface of the adjusting block (4) is fixedly connected to a ball screw (6) via a coupling. The lower end of the ball screw (6) is rotatably connected to the lower surface of the slide groove (10). A slider (7) matching the slide groove (10) is threaded on the ball screw (6). A connecting plate (11) is fixedly connected to one side of the slider (7). A connecting rod (8) is fixedly connected to one side of the connecting plate (11). A ring (9) is fixedly connected to the other end of the connecting rod (8). The ring (9) is fixedly sleeved on the sensor probe (2).

2. The enhanced eddy current sensor according to claim 1, characterized in that, The adjusting block (4) is fixedly connected to a fixing plate (12) on both sides, and the fixing plate (12) has a mounting hole (13).

3. The enhanced eddy current sensor according to claim 1, characterized in that, The groove (10) is fixedly connected to two symmetrically arranged slide rods (14), and the slider (7) is slidably sleeved on the two slide rods (14).

4. The enhanced eddy current sensor according to claim 3, characterized in that, The slide bar (14) is arranged in parallel with the ball screw (6).

5. The enhanced eddy current sensor according to claim 1, characterized in that, The connecting plate (11) is fixedly connected to the slider (7) by multiple screws.

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