Magnetic curved surface ultrasonic thickness measurement adaptive coupling stabilizer and method

Abstract

The application discloses a kind of magnetic curved surface ultrasonic thickness gauge adaptive coupling stabilizer and method, belong to ultrasonic thickness gauge technical field.The device includes outer support, outer support includes main cylinder and multiple support columns, main cylinder is hollow structure and one end is configured as concave surface, solid sphere is adapted with concave surface and connects intermediate cylinder, intermediate cylinder passes through the through-hole in the center of concave surface and installs ultrasonic thickness gauge probe;Spring is sleeved on the outside of intermediate cylinder, upper end is connected with solid sphere, lower end is connected with telescopic sleeve;Telescopic sleeve is coaxially sleeved on the outside of intermediate cylinder, and lower end is threadedly connected with magnetic ring.The application realizes automatic perpendicular centering of ultrasonic thickness gauge probe by universal cooperation of solid sphere and concave surface, uses constant force generated by spring stretching to ensure that ultrasonic thickness gauge probe is closely attached, significantly improves the detection accuracy and operation convenience of curved surface ultrasonic thickness gauge.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic thickness measurement technology, specifically to an adaptive coupling stabilizer and method for ultrasonic thickness measurement of magnetic curved surfaces. Background Technology

[0002] Ultrasonic thickness measurement technology is based on the principle of ultrasonic pulse reflection. It transmits ultrasonic waves into the object being measured through an ultrasonic thickness gauge probe and calculates the object's thickness using the propagation time of the reflected wave. Due to its high accuracy and ease of operation, this technology is widely used for wall thickness testing and corrosion assessment of various pressure-bearing equipment, pipelines, and structural components, and is one of the core means to ensure the safe operation of industrial equipment.

[0003] The core prerequisite for ultrasonic thickness measurement is to achieve good acoustic coupling between the ultrasonic thickness gauge probe and the surface being measured. This requires not only eliminating the air gap between the ultrasonic thickness gauge probe and the surface being measured using a coupling agent, but more importantly, ensuring that the axis of the ultrasonic thickness gauge probe coincides with the normal of the surface being measured, and applying constant pressure to obtain accurate and repeatable test data.

[0004] Various ultrasonic thickness gauge probe stabilization devices have been disclosed in the prior art, such as couplers with strong magnetic wheels. These couplers achieve rapid adsorption and movement detection on flat magnetic surfaces by placing magnetic wheels around the ultrasonic thickness gauge probe, thus improving detection efficiency to some extent. However, these existing stabilizers have significant technical defects. The ultrasonic thickness gauge probe cylinder and magnetic wheels are mostly rigid fixed structures, only suitable for flat surfaces. When the surface of the object being measured is curved or uneven, the adsorption point of the strong magnetic wheel and the contact point of the ultrasonic thickness gauge probe are not coplanar, causing the ultrasonic thickness gauge probe axis to be tilted, preventing it from being perpendicular to the surface being measured. This tilt not only violates the physical premise of perpendicular ultrasonic wave incidence but also creates air gaps at the edge of the ultrasonic thickness gauge probe due to leverage. Even with coupling agent, effective coupling cannot be achieved, ultimately resulting in large deviations and poor repeatability of the detection data, failing to meet the needs of actual industrial inspection. Summary of the Invention

[0005] The purpose of this invention is to provide an adaptive coupling stabilizer and method for ultrasonic thickness measurement of magnetic curved surfaces to solve the above-mentioned problems.

[0006] The technical solution of this invention is: A magnetic curved surface ultrasonic thickness measurement adaptive coupling stabilizer includes: an outer support, comprising a main cylinder and multiple support columns; the main cylinder is configured as a hollow structure, and one end of the hollow structure is configured as a concave curved surface, with a through hole at the center of the concave curved surface; one end of each of the multiple support columns is connected to the outer wall of the main cylinder to form a stable support structure; a self-aligning assembly, comprising: a solid sphere, the outer side of which is connected to one end of an intermediate cylinder, the solid sphere being disposed inside the hollow structure and adapted to the concave curved surface for use on curved or concave surfaces. The spatial angle of the intermediate cylinder is adaptively adjusted on the convex surface. The other end of the intermediate cylinder protrudes from the through hole and is equipped with an ultrasonic thickness gauge probe. A spring is sleeved on the outside of the intermediate cylinder, and one end is connected to the solid sphere. A telescopic sleeve is a hollow cylinder, coaxially sleeved on the outside of the intermediate cylinder, and slides with the intermediate cylinder with a clearance. It is configured to extend and retract along the axial direction of the intermediate cylinder. One end of the telescopic sleeve is connected to the other end of the spring. A magnetic ring is made of permanent magnet material and is threadedly connected to the other end of the telescopic sleeve for adsorbing the surface of the object being measured.

[0007] By utilizing the adaptable clamping structure between the concave curved surface of the main cylinder of the outer support and the solid sphere, the intermediate cylinder achieves universal adaptive adjustment on curved or uneven surfaces. This ensures that the axis of the ultrasonic thickness gauge probe remains perpendicular to the normal of the measured surface, fundamentally solving the acoustic coupling failure problem caused by tilting of the rigid ultrasonic thickness gauge probe on curved surfaces. This significantly improves the accuracy and repeatability of surface inspection data. After the magnetic ring adheres to the measured surface, the spring is stretched to generate a constant return force. This force is applied to the solid sphere and the intermediate cylinder, ensuring that the detection end face of the ultrasonic thickness gauge probe at the other end of the intermediate cylinder is tightly fitted to the measured surface. Simultaneously, the magnetic ring's adsorption force prevents the ultrasonic thickness gauge probe from tilting or shifting in a vertical state, guaranteeing constant detection pressure and stable coupling.

[0008] Furthermore, the multiple support columns are equidistantly arranged, and the angle between each support column and the bottom surface of the cavity is 120°, forming a stable triangular support structure. This prevents the device from tipping over when placed on curved or inclined surfaces. At the same time, the rough contact surface of the wear-resistant and anti-slip pad enhances the device's grip and anti-slip ability on smooth or high-temperature curved surfaces.

[0009] Furthermore, the magnetic ring is made of high-temperature resistant permanent magnet material, and its adsorption end face is higher than the detection end face of the ultrasonic thickness gauge probe in the initial state, which provides sufficient stretching stroke for the spring. This ensures that the ultrasonic thickness gauge probe can be effectively pushed into contact with the surface being measured after the magnetic ring is adsorbed, avoiding the problem of the ultrasonic thickness gauge probe failing to contact the surface being measured or insufficient pressure due to improper initial position.

[0010] Furthermore, the solid sphere has a polished surface, which greatly reduces the frictional resistance between it and the concave curved surface of the main cylinder, making the angle adjustment process more sensitive and smooth, and enabling it to quickly respond to changes in surface curvature. This avoids the ultrasonic thickness gauge probe axis from being unable to align with the normal direction due to friction jamming.

[0011] Furthermore, each of the support columns is fixedly provided with a wear-resistant and anti-slip pad at its lower end. The wear-resistant and anti-slip pad is made of high-temperature resistant rubber and has a rough contact surface, which enables the stabilizer to work stably on the high-temperature test surface for a long time. At the same time, it prevents the device from sliding due to vibration or external force during the test, thereby improving the safety of the test and the stability of the data.

[0012] Furthermore, it also includes a coupling agent supply unit, which is disposed on the intermediate cylinder and has a coupling agent output end. The coupling agent output end extends to the detection end face of the ultrasonic thickness gauge probe. The coupling agent supply unit includes: a coupling agent storage chamber, fixedly connected to the outside of the intermediate cylinder; a micro pump, disposed inside the coupling agent storage chamber; and a conduit, serving as the coupling agent output end, one end of which is connected to the outlet of the micro pump, and the other end extending to the detection end of the ultrasonic thickness gauge probe. This enables automatic and quantitative delivery of the coupling agent. The outlet is flush with the detection end face of the ultrasonic thickness gauge probe, ensuring that the coupling agent accurately fills the tiny air gap between the ultrasonic thickness gauge probe and the surface being measured, avoiding problems such as uneven manual application and residual air bubbles, and improving the coupling effect and detection efficiency.

[0013] Furthermore, the diameter of the through hole is larger than the outer diameter of the intermediate cylinder and the outer diameter of the spring, but smaller than the outer diameter of the solid sphere. The upper edge of the through hole is configured with a rounded corner structure, which not only effectively prevents the solid sphere from coming out of the main cylinder, but also avoids the solid sphere from being stuck by the edge of the through hole during rotation, ensuring the smoothness of universal adjustment and the reliability of the device.

[0014] An adaptive coupling method for ultrasonic thickness measurement of magnetic curved surfaces, utilizing the aforementioned stabilizer for thickness detection, includes the following steps: Install the ultrasonic thickness gauge probe at the other end of the middle cylinder; Place the outer support at the detection point of the object being measured, so that the support column of the outer support contacts the surface of the object being measured to form a stable support. The magnetic ring attracts the surface of the object being measured under magnetic adsorption, and drives the telescopic sleeve to slide along the axial direction of the middle cylinder. At this time, the spring is stretched, and the solid sphere connected to the spring is pulled to fit tightly against the concave curved surface. If the surface of the object being measured is curved, the solid sphere slides in all directions within the concave curved surface of the main cylinder, causing the intermediate cylinder to automatically adjust the spatial angle so that the detection end face of the ultrasonic thickness gauge probe is perpendicular to the normal direction of the surface of the object being measured. The tension of the spring pushes the detection end face of the ultrasonic thickness gauge probe to fit tightly against the surface of the object being measured; when the ultrasonic thickness gauge is started, the probe emits and receives ultrasonic waves, completing the wall thickness detection at that point.

[0015] When the magnetic ring is attracted to the magnetic surface, the magnetic force drives the telescopic sleeve and the intermediate cylinder to move. If the surface being measured is curved, the resultant force of the magnetic force and the tension force of the spring will automatically drive the solid sphere to rotate in all directions until the axis of the ultrasonic thickness gauge probe coincides with the normal of the surface being measured and the system is in force balance.

[0016] The micro pump is started to deliver the coupling agent through a conduit to the area between the probe detection end face of the ultrasonic thickness gauge and the surface of the object being measured, forming a coupling agent layer.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes an outer support structure comprising a main cylinder and multiple supporting columns, with a concave curved surface at one end of the hollow structure of the main cylinder. This, combined with a solid sphere and its connected intermediate cylinder, allows the solid sphere to slide omnidirectionally within the concave curved surface when the device is placed on the surface of the curved object being measured. This enables the intermediate cylinder and the ultrasonic thickness gauge probe mounted at its lower end to automatically adjust their spatial angle, ensuring that the axis of the ultrasonic thickness gauge probe remains perpendicular to the normal direction of the measured curved surface. This fundamentally solves the problems of non-perpendicular ultrasonic wave incidence, significant sound energy loss, and echo signal distortion caused by the tilt of traditional rigid ultrasonic thickness gauge probes on curved surfaces, significantly improving the accuracy and data repeatability of curved surface wall thickness detection. Furthermore, by placing a spring on the outside of the intermediate cylinder and connecting it to the solid sphere and the telescopic sleeve, with a magnetic ring threaded to the lower end of the telescopic sleeve, the ultrasonic thickness gauge probe maintains a constant and stable contact pressure in a vertical state after the magnetic ring adheres to the measured surface. This avoids fluctuations in coupling state caused by uneven manual force application or the device's own weight. It achieves automatic vertical alignment, constant force bonding, and stable coupling of the ultrasonic thickness gauge probe on a magnetic curved surface, effectively improving the reliability of the test data and the convenience of the test process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the intermediate cylinder and rotation adjustment assembly of the present invention; Figure 3 This is a schematic diagram of the outer support structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the present invention during surface operations.

[0020] Among them, 1. intermediate cylinder, 2. self-aligning assembly, 201. solid sphere, 202. spring, 203. telescopic sleeve, 3. outer support, 301. main cylinder, 302. support column, 4. magnetic ring, 5. coupling agent supply unit, 501. sealing plug, 6. coupling agent storage chamber, 7. micro pump, 8. conduit, 9. wear-resistant anti-slip pad, 10. ultrasonic thickness gauge probe. Detailed Implementation

[0021] The following is combined with Figures 1 to 4 The specific embodiments of the present invention will be described in detail below. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] It should be noted that the circuit connections involved in this invention all adopt conventional circuit connection methods and do not involve any innovation.

[0024] Example like Figure 1 As shown, a magnetic curved surface ultrasonic thickness measurement adaptive coupling stabilizer includes: an outer support 3 and a self-aligning assembly 2. The outer support 3 includes a main cylinder 301 and multiple support columns 302. The main cylinder 301 is configured as a hollow structure, and one end of the hollow structure is configured as a concave curved surface with a through hole at the center of the concave curved surface. One end of each of the multiple support columns 302 is connected to the outer wall of the main cylinder 301 to form a stable support structure. Figure 2As shown, the self-aligning assembly 2 includes: a solid sphere 201, an intermediate cylinder 1, a telescopic sleeve 203, a spring 202, and a magnetic ring 4. The outer side of the solid sphere 201 is connected to one end of the intermediate cylinder 1. The solid sphere 201 is disposed inside the hollow structure and is adapted to the concave curved surface. It is used to adaptively adjust the spatial angle of the intermediate cylinder 1 on the curved or concave-convex surface. The other end of the intermediate cylinder 1 protrudes through the through hole and is equipped with an ultrasonic thickness gauge probe 10. The spring 202 is sleeved on the outside of the intermediate cylinder 1, and one end is connected to the solid sphere 201. The telescopic sleeve 203 is a hollow cylinder, coaxially sleeved on the outside of the intermediate cylinder 1, and has a clearance sliding fit with the intermediate cylinder 1. It is configured to extend and retract along the axial direction of the intermediate cylinder 1. One end of the telescopic sleeve 203 is connected to the other end of the spring 202. The magnetic ring 4 is made of permanent magnet material and is threadedly connected to the other end of the telescopic sleeve 203. It is used to adsorb the surface of the object being measured.

[0025] Through the matching and mounting structure between the concave curved surface of the main cylinder 301 of the outer support 3 and the solid sphere 201, the intermediate cylinder 1 achieves universal adaptive adjustment on curved or uneven surfaces, ensuring that the axis of the ultrasonic thickness gauge probe 10 is always perpendicular to the normal of the surface being measured. This fundamentally solves the problem of acoustic coupling failure caused by tilting of the rigid ultrasonic thickness gauge probe on curved surfaces, significantly improving the data accuracy and repeatability of curved surface detection. After the magnetic ring adheres to the surface being measured, the spring 202 is stretched to generate a constant return force. This force is applied to the solid sphere 201 and the intermediate cylinder 1, thereby ensuring that the detection end face of the ultrasonic thickness gauge probe 10 at the other end of the intermediate cylinder 1 is tightly fitted to the surface being measured. At the same time, the magnetic ring adsorption force prevents the ultrasonic thickness gauge probe from tilting or shifting in a vertical state, ensuring the constant detection pressure and the stability of the coupling.

[0026] It is worth noting that the device in this embodiment is mainly for detecting the wall thickness of magnetic curved surfaces such as industrial pipelines and storage tanks, which typically have a large radius of curvature. For such curved surfaces with a large radius of curvature, the maximum gap between the magnetic ring end face and the curved surface occurs at the edge, and the gap is relatively small, having little impact on the overall structure.

[0027] like Figure 1 and Figure 3 As shown, multiple support columns 302 are equidistantly arranged, and the angle between each support column 302 and the bottom surface of the cavity is 120°, forming a stable triangular support structure. This prevents the device from tipping over when placed on curved or inclined surfaces. In addition, the rough contact surface of the wear-resistant and anti-slip pad 9 enhances the device's grip and anti-slip ability on smooth or high-temperature curved surfaces.

[0028] In some embodiments, the magnetic ring 4 is made of high-temperature resistant permanent magnet material, and its adsorption end face is higher than the detection end face of the ultrasonic thickness gauge probe 10 in the initial state, which provides sufficient stretching stroke for the spring 202, ensuring that the ultrasonic thickness gauge probe 10 can be effectively pushed into contact with the surface to be measured after the magnetic ring 4 is adsorbed, avoiding the problem that the ultrasonic thickness gauge probe 10 cannot contact the surface to be measured or the pressure is insufficient due to improper initial position.

[0029] In some embodiments, the solid sphere 201 has a polished surface, which greatly reduces the frictional resistance between it and the concave curved surface of the main cylinder 301, making the angle adjustment process more sensitive and smooth, and enabling it to quickly respond to changes in surface curvature, thus avoiding the ultrasonic thickness gauge probe axis from being unable to align with the normal direction due to friction jamming.

[0030] In some embodiments, a wear-resistant and anti-slip pad 9 is fixedly provided at the lower end of each support column 302. The wear-resistant and anti-slip pad 9 is made of high-temperature resistant rubber and its contact surface is rough, so that the stabilizer can work stably for a long time on the high-temperature test surface such as high-temperature pipelines and storage tanks. At the same time, it prevents the device from sliding due to vibration or external force during the test, thereby improving the safety of the test and the stability of the data.

[0031] like Figure 1 and Figure 2 As shown, it also includes a couplant supply unit 5, which is disposed on the intermediate cylinder 1 and has a couplant output end that extends to the detection end face of the ultrasonic thickness gauge probe 10. The couplant supply unit includes: a couplant reservoir 6, a micro pump 7, and a conduit 8. The couplant reservoir 6 is fixedly connected to the outside of the intermediate cylinder 1; the micro pump 7 is disposed inside the couplant reservoir 6; the conduit 8 serves as the couplant output end, with one end connected to the outlet of the micro pump 7 and the other end extending to the detection end of the ultrasonic thickness gauge probe 10. The couplant supply unit enables automatic and quantitative delivery of the couplant. The outlet is flush with the detection end face of the ultrasonic thickness gauge probe, ensuring that the couplant accurately fills the tiny air gap between the ultrasonic thickness gauge probe and the surface being measured, avoiding problems such as uneven manual application and residual air bubbles, thus improving the coupling effect and detection efficiency.

[0032] In some embodiments, the diameter of the through hole is larger than the outer diameter of the intermediate cylinder 1 and the outer diameter of the spring 202, but smaller than the outer diameter of the solid sphere 201. The upper edge of the through hole is configured with a rounded corner structure, which not only effectively prevents the solid sphere 201 from coming out of the main cylinder 301, but also prevents the solid sphere 201 from being stuck by the edge of the through hole during rotation, thus ensuring the smoothness of the universal adjustment and the reliability of the device.

[0033] like Figure 4 As shown, an adaptive coupling method for ultrasonic thickness measurement of magnetic curved surfaces, utilizing the aforementioned stabilizer for thickness detection, includes the following steps: Install the ultrasonic thickness gauge probe 10 at the other end of the intermediate cylinder 1; Place the outer support 3 at the detection point of the object being measured, so that the support column 302 of the outer support 3 contacts the surface of the object being measured to form a stable support. The magnetic ring 4 is attracted to the surface of the object being tested under magnetic adsorption, and drives the telescopic sleeve 203 to slide along the axial direction of the middle cylinder 1. At this time, the spring 202 is stretched, and the solid ball 201 connected to the spring 202 is pulled and closely adheres to the concave curved surface. If the surface of the object being measured is curved, the solid sphere 201 slides in all directions within the concave curved surface of the main cylinder 301, causing the intermediate cylinder 1 to automatically adjust the spatial angle so that the detection end face of the ultrasonic thickness gauge probe 10 is perpendicular to the normal direction of the surface of the object being measured. The tension of the spring 202 pushes the detection end face of the ultrasonic thickness gauge probe 10 to fit tightly against the surface of the object being measured; the ultrasonic thickness gauge is started, and the ultrasonic thickness gauge probe 10 emits and receives ultrasonic waves to complete the wall thickness detection at the detection point.

[0034] When the magnetic ring 4 is attracted to the magnetic surface, the magnetic force drives the telescopic sleeve 203 and the intermediate cylinder 1 to move. If the surface being measured is curved, the resultant force of the magnetic force and the tensile force of the spring 202 will automatically drive the solid sphere 201 to rotate in all directions until the axis of the ultrasonic thickness gauge probe 10 coincides with the normal of the surface being measured and the system is in force balance.

[0035] Start the micro pump 7 to deliver the coupling agent through the conduit 8 to the detection end face of the ultrasonic thickness gauge probe 10 and the surface of the object being measured, forming a coupling agent layer.

[0036] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A magnetic curved surface ultrasonic thickness measurement adaptive coupling stabilizer, characterized in that, include: The outer support includes a main cylinder and multiple support columns; the main cylinder is configured as a hollow structure, and one end of the hollow structure is configured as a concave curved surface, with a through hole at the center of the concave curved surface; one end of each of the multiple support columns is connected to the outer wall of the main cylinder. The self-aligning assembly includes: a solid sphere, with its outer surface connected to one end of the intermediate cylinder, the solid sphere being disposed inside the hollow structure and adapted to the concave curved surface, the other end of the intermediate cylinder protruding from the through hole, and an ultrasonic thickness gauge probe being installed at the other end of the intermediate cylinder; a spring, sleeved on the outside of the intermediate cylinder, with one end connected to the solid sphere; a telescopic sleeve, a hollow cylinder, coaxially sleeved on the outside of the intermediate cylinder, slidingly fitted with the intermediate cylinder with a clearance, configured to extend and retract along the axial direction of the intermediate cylinder, one end of the telescopic sleeve being connected to the other end of the spring; and a magnetic ring, threadedly connected to the other end of the telescopic sleeve, used to adsorb the surface of the object being measured.

2. The adaptive coupling stabilizer for ultrasonic thickness measurement of magnetic curved surfaces according to claim 1, characterized in that, The multiple support columns are equidistant from each other, and the angle between each support column and the bottom surface of the cavity is 120°.

3. The adaptive coupling stabilizer for ultrasonic thickness measurement of magnetic curved surfaces according to claim 1, characterized in that, The magnetic ring is made of high-temperature resistant permanent magnet material, and its adsorption end face is higher than the detection end face of the ultrasonic thickness gauge probe in the initial state.

4. The adaptive coupling stabilizer for ultrasonic thickness measurement of magnetic curved surfaces according to claim 1, characterized in that, The solid sphere has a polished surface.

5. The adaptive coupling stabilizer for ultrasonic thickness measurement of magnetic curved surfaces according to claim 1, characterized in that, Each of the support columns is fixedly provided with a wear-resistant and anti-slip pad at its lower end. The wear-resistant and anti-slip pad is made of high-temperature resistant rubber and its contact surface is rough.

6. The adaptive coupling stabilizer for ultrasonic thickness measurement of magnetic curved surfaces according to claim 1, characterized in that, It also includes a coupling agent supply unit, which is disposed on the intermediate cylinder and has a coupling agent output end that extends to the detection end face of the ultrasonic thickness gauge probe. The coupling agent supply unit includes: The coupling agent reservoir is fixedly connected to the outside of the intermediate cylinder; A miniature pump is installed inside the coupling agent reservoir. The conduit, serving as the output end of the coupling agent, has one end connected to the outlet of the micro-pump and the other end extending to the detection end of the ultrasonic thickness gauge probe.

7. The adaptive coupling stabilizer for ultrasonic thickness measurement of magnetic curved surfaces according to claim 1, characterized in that, The diameter of the through hole is larger than the outer diameter of the intermediate cylinder and the outer diameter of the spring, but smaller than the outer diameter of the solid sphere, and the upper edge of the through hole is configured with a rounded corner structure.

8. An adaptive coupling method for ultrasonic thickness measurement of magnetic curved surfaces, characterized in that, Thickness detection using the stabilizer according to any one of claims 1-7 includes the following steps: Install the ultrasonic thickness gauge probe at the other end of the middle cylinder; Place the outer support at the detection point of the object being measured, so that the support column of the outer support contacts the surface of the object being measured to form a stable support. The magnetic ring attracts the surface of the object being measured under magnetic adsorption, and drives the telescopic sleeve to slide along the axial direction of the middle cylinder. At this time, the spring is stretched, and the solid sphere connected to the spring is pulled to fit tightly against the concave curved surface. If the surface of the object being measured is curved, the solid sphere slides in all directions within the concave curved surface of the main cylinder, causing the intermediate cylinder to automatically adjust the spatial angle so that the detection end face of the ultrasonic thickness gauge probe is perpendicular to the normal direction of the surface of the object being measured. The tension of the spring pushes the detection end face of the ultrasonic thickness gauge probe to fit tightly against the surface of the object being measured; when the ultrasonic thickness gauge is started, the probe emits and receives ultrasonic waves, completing the wall thickness detection at that point.

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