Iron component multi-parameter detection equipment based on laser induction and electromagnetic induction

Abstract

The invention provides iron component multi-parameter detection equipment based on laser induction and electromagnetic induction, and relates to the technical field of nondestructive detection equipment, and the iron component multi-parameter detection equipment is characterized in that a detection mechanism and a measurement host are both arranged in a box body; a film thickness measurement assembly of the detection mechanism is used for detecting the thickness of the coating of the to-be-detected iron component based on the electromagnetic induction principle and uploading the measured coating thickness information to the measurement host; the laser ranging assembly is used for measuring the size of the to-be-measured iron component based on a laser phase difference principle and uploading the measured size information to the measurement host; the element component detection assembly is used for inducing plasmas on the surface of the iron component through laser, so that the plasmas radiate optical signals with different wavelengths in the de-excitation process and transmit the optical signals to the measurement host, and the measurement host analyzes the components and contents of elements in the iron component according to the wavelength and intensity information of the optical signals. According to the scheme, iron component quality detection can be carried out conveniently and rapidly on site.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nondestructive testing equipment, and particularly relates to a multi-parameter detection equipment for iron components based on laser induction and electromagnetic induction. BACKGROUND

[0002] In the industrial field, iron components are widely used in key scenes such as power grid transmission tower, building steel structure, rail transit track support component, etc. as basic structural parts, and the quality of the iron components directly determines the safety, stability and service life of the engineering facilities. Taking the power grid industry as an example, the State Grid Corporation and various units have successively issued documents such as the State Grid Corporation of China Material Quality Management Method and Power Grid Equipment Quality Supervision and Management Regulations, which clearly require "quality strong network" and "select good and excellent equipment", and the quality detection of iron components is included in the core link of material procurement, engineering construction and operation and maintenance. However, the current iron component quality detection system still faces multiple challenges, and the traditional detection mode has been difficult to adapt to the quality control requirements of modern industry high efficiency and refinement.

[0003] For example, the traditional iron component detection highly depends on the laboratory environment with qualification, and is seriously insufficient in on-site detection capacity due to the limitations of the volume, weight and operation complexity of the detection equipment. Only the batch sampling and proportion sampling detection mode can be adopted, which not only easily leads to the problem that qualified samples cover up unqualified batches due to the inability to cover the full amount, but also is time-consuming and laborious. In addition, with the increasing demand for instant quality judgment in scenes such as power grid operation and maintenance, such as the need to quickly judge whether the galvanized layer of the iron component is corroded and thinned in the power grid transmission tower inspection, the drawbacks of the traditional detection method that cannot meet the on-site rapid detection requirements are being magnified, and it is gradually difficult to adapt to the current detection requirements. SUMMARY

[0004] Therefore, in view of the above problems, it is necessary to provide a multi-parameter detection equipment for iron components based on laser induction and electromagnetic induction, which can rapidly detect the quality of iron components on site in a portable manner.

[0005] The present application provides a multi-parameter detection equipment for iron components based on laser induction and electromagnetic induction, comprising: a box body, a detection mechanism and a measurement host; one side of the box body is rotatably connected with a box cover, the detection mechanism and the measurement host are both arranged in the box body; and the detection mechanism can be taken out from the box body to detect the quality of the iron component; the detection mechanism comprises a film thickness measurement assembly, a laser distance measurement assembly and an element composition detection assembly which are all electrically connected with the measurement host. The film thickness measurement assembly is used for detecting the thickness of the coating of the iron component to be measured based on the principle of electromagnetic induction, and uploading the measured coating thickness information to the measurement host for analysis and display by the measurement host. The laser ranging component is used to measure the size of the iron component to be measured based on the principle of laser phase difference, and upload the measured size information of the iron component to the measuring host for analysis and display by the measuring host; The elemental composition detection component is used to induce plasma on the surface of the iron component using a laser, so that the plasma radiates light signals of different wavelengths during the de-excitation process, and transmits the light signals of each radiated wavelength to the measurement host, so that the measurement host can analyze the composition and content of elements in the iron component based on the wavelength and intensity information of each light signal and the spectral characteristics of known elements.

[0006] Preferably, a power compartment is provided on the lower rear side of the housing, and a battery pack is installed inside the power compartment to provide power to the entire device; a flip cover is also rotatably installed on the lower rear side of the housing to protect the battery pack.

[0007] Preferably, the detection mechanism includes a handle and a detection head, and a cable winding mechanism is fixedly installed inside the housing; the detection head is provided with the film thickness measurement component, the laser ranging component and the elemental composition detection component; the handle is installed below the detection head, and the cable connected to the detection head is led out from the lower end of the handle and wound in the cable winding mechanism, and the cable is connected to the measurement host after being wound by the cable winding mechanism.

[0008] Preferably, the cable winding mechanism includes a cable fixing frame, a fixing component, a fixing ring, a spiral spring, and a rotating ring; the outer wall of the cable fixing frame is fixedly installed inside the housing, and one end of the fixing component is fixedly connected to the inside of the cable fixing frame; the spiral spring is disposed inside the fixing ring, with its outer winding end fixedly connected to the inside of the fixing ring, and the other end of the fixing component is fixedly connected to the central fixed end of the spiral spring, and extends to a through hole passing through the center of the rotating ring before being fixedly connected to the outer cover plate; the rotating ring is detachably installed outside the fixing ring, and symmetrical wire-passing holes are arranged on the side of the rotating ring; one end of the data cable is connected to the measuring host, and the other end passes through the two symmetrically arranged wire-passing holes in sequence before being wound around the outer surface of the rotating ring, and then connected to the lower end of the handle after winding.

[0009] Preferably, the upper part of the handle is also equipped with an operation panel, which integrates a power button, a measurement button and a function switching button; the upper part of the operation panel is connected to a display screen for displaying detection information, battery level and network status.

[0010] Preferably, a mounting frame is installed inside the detection head, and the film thickness measuring component is installed on the upper front side of the mounting frame; a laser ranging component is arranged below the film thickness measuring component and is fixedly installed on the front end of the mounting frame; a laser emitter for emitting laser is also installed in the middle of the mounting frame.

[0011] Preferably, the front of the laser emitter is provided with a first light-transmitting lens for focusing the laser, which is mounted on the lower inside of the detection head by a fixing bracket, for focusing the laser emitted by the laser emitter onto the surface of the iron component to be tested; the lower part of the fixing bracket is also provided with a second light-transmitting lens for collecting the light signal returned by the iron component and transmitting it to the measurement host through an optical fiber, so that the measurement host can perform spectral analysis to determine the elemental composition and content of the iron component to be tested.

[0012] Preferably, an operation module is installed inside the housing and on top of the measuring host. This operation module uses a capacitive touch screen and is used to adjust the parameter settings of the measuring host, view historical data, and generate test reports.

[0013] Preferably, a telescopic pull rod is provided at the upper part of the outer side of the box, and casters are installed on both sides of the bottom of the box and the lid to facilitate the operator to move the equipment.

[0014] Preferably, the inside of the lid is provided with a protective pad for protecting the internal structure of the box.

[0015] As described above, the multi-parameter detection device for iron components based on laser induction and electromagnetic induction provided in this embodiment includes a housing, a detection mechanism, and a measuring host. A cover is rotatably connected to one side of the housing. Both the detection mechanism and the measuring host are located inside the housing, and the detection mechanism can be removed from the housing for detecting the quality of the iron components. The detection mechanism includes a film thickness measurement component, a laser ranging component, and an elemental composition detection component, all electrically connected to the measuring host. The film thickness measurement component is used to detect the thickness of the coating on the iron component under test based on the principle of electromagnetic induction, and uploads the measured coating thickness information to the measuring host for analysis and display. The laser ranging component is used to measure the dimensions of the iron component under test based on the principle of laser phase difference, and uploads the measured iron component dimension information to the measuring host for analysis and display. The elemental composition detection component is used to induce plasma on the surface of iron components using a laser. During the de-excitation process, the plasma radiates light signals of different wavelengths, which are then transmitted to the measurement host. The host analyzes the elemental composition and content of the iron components based on the wavelength and intensity of each light signal, combined with the known spectral characteristics of the elements. Therefore, this solution integrates the film thickness measurement component, laser ranging component, and elemental composition analysis component into the detection mechanism, and integrates the detection mechanism and measurement host into a housing. This allows for portable on-site rapid quality testing of iron components. Furthermore, the film thickness measurement component, laser ranging component, and elemental composition analysis component can respectively detect the coating thickness, dimensions, and elemental composition and content of the iron components. This eliminates the need to replace equipment or send the iron components to a laboratory for testing, enabling rapid on-site quality testing and meeting the requirements for rapid on-site inspection. Attached Figure Description

[0016] Figure 1 This is a front perspective view of the present invention.

[0017] Figure 2 This is a rear bottom view of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the housing of the present invention.

[0019] Figure 4 This is a schematic diagram of the battery pack installation position according to the present invention.

[0020] Figure 5 This is a schematic diagram showing the installation location of the testing mechanism of the present invention.

[0021] Figure 6 This is a schematic diagram showing the connection state between the detection mechanism and the cable winding mechanism of the present invention.

[0022] Figure 7This is a schematic diagram of the internal structure of the detection head of the present invention.

[0023] Figure 8 This is a side view of the detection head of the present invention.

[0024] Figure 9 This is a schematic diagram of the cable winding and unwinding mechanism from one perspective.

[0025] Figure 10 A schematic diagram of the cable take-up and take-down mechanism from another perspective. Figure 11 This is a schematic diagram of the installation of a spiral spring.

[0026] Figure 12 This is a schematic diagram of a fixed wire frame.

[0027] In the diagram: 1. Housing; 2. Detection mechanism; 201. Handle; 202. Detection head; 2021. Mounting bracket; 2022. Film thickness measurement component; 2023. Laser ranging component; 2024. Laser emitter; 2025. First light transmission lens; 2026. Fixture; 2027. Second light transmission lens; 2028. Fiber optic cable; 2029. Protective plate; 203. Operation panel; 204. Display screen; 3. Measurement host; 4. Housing cover; 5. Power supply compartment; 6. Battery pack; 7. Flip-top cover; 8. Lifting plate. 9. Operation module; 10. Telescopic pull rod; 11. Moving wheel; 12. Protective pad; 13. Side pull rod; 14. Locking cover; 15. Display panel; 16. Cable winding mechanism; 16. Cable fixing frame; 1601. Fixing component; 1602. Fixing ring; 1603. Scroll spring; 1604. Rotating ring; 1605. Cover plate; 1606. Cable hole; 1607. Arc-shaped slot; 1608. Arc-shaped insert; 1609. Cable inlet; 1610. Cable outlet; 1611. Main cable; 17. Detailed Implementation

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] See Figures 1-12 As shown, the present invention provides a multi-parameter detection device for iron components based on laser induction and electromagnetic induction, comprising: a housing 1, a detection mechanism 2, and a measuring host 3; a housing cover 4 is rotatably connected to one side of the housing 1, and the detection mechanism 2 and the measuring host 3 are both disposed inside the housing 1; and the detection mechanism 2 can be removed from the housing 1 for detecting the quality of the iron components; the detection mechanism 2 includes a film thickness measurement component 2022, a laser ranging component 2023, and an elemental composition detection component, all electrically connected to the measuring host 3; The film thickness measurement component 2022 is used to detect the thickness of the coating of the iron component under test based on the principle of electromagnetic induction, and upload the measured coating thickness information to the measurement host 3 for analysis and display by the measurement host 3; The laser ranging component 2023 is used to measure the size of the iron component to be measured based on the principle of laser phase difference, and upload the measured size information of the iron component to the measuring host 3 for analysis and display by the measuring host 3; The elemental composition detection component is used to induce plasma on the surface of the iron component by laser, so that the plasma radiates light signals of different wavelengths during the de-excitation process, and transmits the light signals of each radiated wavelength to the measuring host 3, so that the measuring host 3 can analyze the composition and content of elements in the iron component based on the wavelength and intensity information of each light signal and the spectral characteristics of known elements.

[0030] In this embodiment, the film thickness measurement component 2022, the laser ranging component 2023, and the elemental composition analysis component are integrated into the detection mechanism 2, and the detection mechanism 2 and the measurement host 3 are integrated into the housing 1. This allows the equipment to be portable and brought to the site for rapid quality testing of iron components. Furthermore, the film thickness measurement component 2022, the laser ranging component 2023, and the elemental composition analysis component can respectively detect the coating thickness, dimensions, and elemental composition and content of the iron components. This eliminates the need to replace equipment or send the iron components to a laboratory for testing, thus enabling the quality testing of iron components and meeting the needs of rapid on-site testing.

[0031] In one embodiment, a power compartment 5 is provided on the lower rear side of the housing 1, and a battery pack 6 is installed inside the power compartment 5 to provide power to the entire device; a flip cover 7 is also rotatably installed on the lower rear side of the housing 1 to protect the battery pack 6.

[0032] The housing 1, serving as the main mounting structure for all components of the equipment, is constructed from high-strength aluminum alloy, combining lightweight design with impact resistance. A cover 4 is rotatably connected to one side via a damping hinge, allowing for flip-opening and closing to meet operational needs in various scenarios. A separate power supply compartment 5 is located on the lower rear side of housing 1. The inner wall of the power supply compartment 5 is lined with insulating cushioning cotton, such as EVA material, to prevent direct contact and wear between the battery pack 6 and housing 1. The battery pack 6 uses a high-capacity rechargeable lithium battery, installed inside the power supply compartment 5. The battery pack 6 outputs 12V and can continuously output up to 5A, providing stable power to the entire equipment. A flip-top cover 7, protecting the battery pack 6, is also rotatably mounted on the lower rear side of housing 1 via a spring hinge. The flip-top cover 7 has a waterproof sealing ring on its edge, achieving an IP54 protection rating. A lifting plate 8 is fixedly connected to the upper part of the flip-top cover 7, with anti-slip textures on its surface for easy access to the power supply compartment 5 for battery replacement. Meanwhile, an operation module 9 is also installed inside the housing 1, located on top of the measuring host 3. This operation module 9 uses a capacitive touch screen and is used to adjust the parameter settings of the measuring host 3, view historical data, and generate test reports. Furthermore, the interior of the housing 1 is custom-designed with grooves based on the outlines of the testing mechanism 2, the measuring host 3, and the operation module 9, to ensure that the components are fixed and stable when not in operation, and to prevent damage caused by shaking during transportation.

[0033] In one embodiment, a telescopic pull rod 10 is slidably installed on the upper part of the box 1. The telescopic pull rod 10 is made of aluminum alloy and can achieve three-stage telescopic extension with a maximum extension length of 100cm, which facilitates the operator to drag the equipment. The bottom sides of the box 1 and the box cover 4 are respectively equipped with casters 11. The casters 11 are made of high elastic rubber and have a braking function to ensure that the equipment can be parked stably on slopes. The inside of the cover 4 is equipped with a protective pad 12 to protect the internal structure of the box body 1. The protective pad 12 is made of high-density EVA foam material, which provides all-round protection for the testing mechanism 2, the main unit and other components. A side pull rod 13 is installed on one side of the box body 1. The surface of the side pull rod 13 is covered with anti-slip rubber, which facilitates short-distance handling of the equipment. The upper and lower parts of one side of the box body 1 are also equipped with locking covers 14 for fastening and fixing the cover 4. The locking covers 14 are made of stainless steel and have a locking function to ensure that the cover 4 will not be accidentally opened during transportation. An information display panel 15 is also installed on the front of the cover 4. The panel is an LED display screen that can display the equipment power, working status and cumulative number of tests in real time, so that managers can quickly understand the equipment status.

[0034] In addition, this equipment supports both AC power and lithium battery power. An AC220V power interface is located on the side of the enclosure 1 for direct AC power connection. The battery pack 6 supports hot-swapping to meet the needs of long-term field testing. The interior of enclosure 1 also has a reserved mounting position for a small inkjet printer. An inkjet printer can be selected according to user needs to automatically print information such as the testing time and equipment number on qualified iron components, enabling data traceability management.

[0035] The detection mechanism 2 may include a handle 201 and a detection head 202. A cable winding mechanism 16 is fixedly installed inside the housing 1. The detection head 202 is equipped with the film thickness measurement component 2022, the laser ranging component 2023, and the elemental composition detection component. The handle 201 is installed below the detection head 202. The cable connected to the detection head 202 is led out from the lower end of the handle 201 and wound in the cable winding mechanism 16. After being wound by the cable winding mechanism 16, the cable is connected to the measurement host 3.

[0036] In this embodiment, the detection mechanism 2 is located inside the housing 1 on one side and is fixed by a matching slot to prevent shaking during transportation. It is used for parameter detection of iron components. Specifically, the detection mechanism 2 may include a handle 201 and a detection head 202. The handle 201 adopts an ergonomic gun-shaped design, with the grip area covered in non-slip rubber material to improve comfort during long-term operation. The handle 201 is connected to the cable retraction mechanism 16 via a connecting cable. An operation panel 203 is also installed on the upper part of the handle 201. The operation panel 203 integrates a power button, a measurement button, and a function switching button. A display screen 204 for displaying detection information is connected to the upper part of the operation panel 203. The display screen 204 is a sunlight-visible LCD screen that supports touch operation and can display detection data, battery level, and network status in real time. Thus, relevant detection data can be displayed not only through the measurement host 3 but also through the display screen 204 on the detection mechanism 2. Even if one person is performing the detection work, they can conveniently view relevant information on the display screen 204. Furthermore, the outer shell of the detection head 202 can be made of wear-resistant engineering plastic.

[0037] In one embodiment, a metal mounting bracket 2021 can be installed inside the detection head 202. A film thickness measurement component 2022 is installed on the upper front side of the mounting bracket 2021. The film thickness measurement component 2022 is based on the principle of electromagnetic induction, generating a high-frequency alternating electromagnetic field through an internal coil. When the probe contacts the coating layer of the iron component, eddy currents are generated in the metal substrate. The coating thickness is calculated by measuring the magnitude of the feedback signal. The measurement range is 0-500μm, and the accuracy can reach ±1μm. Furthermore, a laser ranging component 2023 is arranged below the film thickness measurement component 2022 and is installed at one end of the mounting bracket 2021. The laser ranging component 2023 uses laser phase difference measurement technology, emitting a modulated laser beam and receiving the reflected light. The workpiece size is calculated by comparing the phase difference. A laser emitter 2024 for emitting laser light is also installed in the middle of the mounting bracket 2021. The laser output wavelength is 1064nm, and the pulse energy is 100mJ, which meets the requirements of laser-induced breakdown spectroscopy analysis.

[0038] Specifically, the film thickness measurement component 2022 detects the coating thickness based on the principle of electromagnetic induction. An alternating current is passed through its internal excitation coil, generating a high-frequency alternating electromagnetic field. When the detection head 202 contacts the coating layer of the iron component, induced eddy currents are generated in the ferromagnetic substrate due to electromagnetic induction. According to Lenz's law, these eddy currents generate a magnetic field opposite to the original magnetic field, thus affecting the impedance of the excitation coil. The degree of influence on the excitation coil impedance varies depending on the coating thickness. The film thickness measurement component 2022 measures the change in the excitation coil impedance, converts it into a coating thickness value through built-in circuit conversion and algorithm processing, and outputs the result. For example, when the coating layer is thicker, the reverse magnetic field generated by the induced eddy currents is stronger, resulting in a greater impact on the excitation coil impedance and a larger measured impedance change. A correspondingly larger coating thickness can then be calculated. The 2022 film thickness measurement component can utilize products such as the MiniTest600 series coating thickness gauge from NIKS (Germany). Based on the principle of electromagnetic induction, it measures the thickness of non-ferromagnetic coating layers on ferromagnetic substrates, offering high accuracy and stability, and is widely used in industrial testing. In practical application, this solution requires configuration of specific parameters, detection range, and accuracy to meet the specific usage scenarios and testing requirements of multi-parameter testing equipment for iron components.

[0039] Furthermore, a first light-transmitting lens 2025 for focusing the laser is provided at the front of the laser emitter 2024. It is mounted on the lower inside of the detection head 202 via a mounting bracket 2026 to focus the laser emitted by the laser emitter 2024 onto the surface of the iron component to be tested. A second light-transmitting lens 2027 is also installed at the lower part of the mounting bracket 2026 to collect the light signal returned by the iron component and transmit it to the measurement host 3 via an optical fiber 2028, so that the measurement host 3 can perform spectral analysis to determine the elemental composition and content of the iron component to be tested.

[0040] In this embodiment, a first light-transmitting mirror 2025 for focusing the laser is provided at the front of the laser emitter 2024. This mirror is fixedly mounted inside the lower side of the detection head 202 via a mounting bracket 2026. The first light-transmitting mirror 2025 is made of quartz material with a focal length of 50mm, capable of focusing the laser beam to a spot with a diameter of 50-100μm and focusing the spot onto the surface of the iron component to be inspected. A second light-transmitting mirror 2027, made of high-transmittance optical glass, is also installed at the lower part of the mounting bracket 2026. This second mirror collects plasma light radiation and transmits it to the measurement host 3 via an optical fiber 2028 for spectral analysis. The optical fiber 2028 is made of quartz fiber with a core diameter of 200μm and a numerical aperture of 0.22. A protective plate 2029 is installed at the front of the detection head 202. The protective plate is detachable and has a dustproof and light-transmitting window on its surface for easy maintenance and replacement. The second light-transmitting mirror 2027, made of high-transmittance optical glass, collects plasma light radiation and transmits it to the measurement host 3 via the optical fiber 2028 for spectral analysis. Specifically, its working principle is as follows: When the surface of the iron component is irradiated by a laser beam emitted by a laser, plasma is generated. During the de-excitation process, the plasma radiates light of different wavelengths. Due to its high transmittance, the second lens 2027 can efficiently collect this plasma light radiation. The collected light radiation enters the optical fiber 2028 at a specific angle. According to the principle of total internal reflection in the optical fiber 2028, the light undergoes repeated total internal reflection within the fiber 2028 and is transmitted along the fiber 2028 to the measurement host 3. In the measurement host 3, the spectrometer performs spectral processing on the transmitted light radiation, separating the light of different wavelengths and detecting their intensity. By analyzing the wavelength and intensity information of the light radiation and combining it with the spectral characteristics of known elements, qualitative and quantitative analysis of elements such as C, Si, Mn, P, and S in the iron component can be achieved. For example, different elements emit light with specific wavelengths in the plasma state. For example, carbon will produce characteristic spectral lines at a specific wavelength. By detecting the intensity of the light at this wavelength and comparing it with a standard spectral database, the carbon content in the iron component can be determined.

[0041] The cable winding mechanism 16 may include a cable fixing frame 1601, a fixing component 1602, a fixing ring 1603, a spiral spring 1604, and a rotating ring 1605. The outer wall of the cable fixing frame 1601 is fixedly installed inside the housing 1, and one end of the fixing component 1602 is fixedly connected to the inside of the cable fixing frame 1601. The spiral spring 1604 is disposed inside the fixing ring 1603, and its outer winding end is fixedly connected to the inside of the fixing ring 1603. The other end of the fixing component 1602 is connected to the spiral spring 1605. The center fixed end of 04 is fixedly connected and extends to the through hole in the center of the rotating ring 1605 and is fixedly connected to the outer cover plate 1606; the rotating ring 1605 is detachably installed outside the fixed ring 1603, and the rotating ring 1605 has symmetrical wire holes 1607 on its side; one end of the data cable is connected to the measuring host 3, and the other end passes through the two symmetrical wire holes 1607 in sequence and is wound around the outer surface of the rotating ring 1605, and is connected to the lower end of the handle 201 after winding.

[0042] In this embodiment, when the detection mechanism 2 needs to be removed and the data cable extended for testing, the operator pulls the handle 201 of the detection mechanism 2, causing the data cable to rotate and release the data cable by rotating the rotating ring 1605. Simultaneously, the rotation of the rotating ring 1605 causes the corresponding fixed ring 1603 to rotate, which in turn causes the internal spiral spring 1604 to coil, deforming and storing energy. When the operator stops applying pulling force through the handle 201 of the detection mechanism 2, the deformation of the spiral spring 1604 automatically returns to its original state, releasing the energy. During the recovery process, the spiral spring 1604 causes the fixed ring 1603 to rotate in the opposite direction, thereby coiling the data cable and wrapping the pulled-out data cable around the fixed ring 1603. When operators perform testing, they can easily pull out the data cable to adapt to the working distance. Moreover, the automatic retraction of the data cable can avoid problems such as knotting and dragging wear on the ground during use, effectively improving the service life of the equipment and reducing the impact of data cable wear on testing accuracy.

[0043] In one embodiment, the diameter of the cover plate 1606 should be larger than the diameter of the rotating ring 1605, so that the part of the cover plate 1606 protruding from the rotating ring 1605 can prevent the data cable from falling off the rotating ring 1605, thus avoiding the data cable from falling off the rotating ring 1605 during the data cable retraction process.

[0044] For the fixed ring 1603, an arc-shaped slot 1608 can be provided on its outer side, and an arc-shaped insert 1609 is provided on the rotating ring 1605 to match it, so that the arc-shaped insert 1609 can be inserted into the arc-shaped slot 1608, thereby realizing the detachable installation of the fixed ring 1603 and the rotating ring 1605.

[0045] The fixing component 1602 can be composed of two semi-cylinders with a gap between them. One end of each semi-cylinder is fixedly connected to the inside of the wire frame 1601, and the other end extends outward perpendicularly to the inner surface of the wire frame 1601. The central fixed end of the spiral spring 1604 is inserted into the gap between the two semi-cylinders and fixed to them. The front ends of the two semi-cylinders pass through the through hole in the center of the rotating ring 1605 and are fixedly connected to the inner surface of the cover plate 1606. It should be noted that the diameter of the through hole in the center of the rotating ring 1605 should be tightly fitted with the outer diameter of the two semi-cylinders to limit the rotation range of the rotating ring 1605 and prevent large-scale shaking during rotation.

[0046] In one embodiment, the wire frame 1601 shall be provided with an inlet hole 1610 and an outlet hole 1611. The inlet hole 1610 is used for the data cable to enter the cable winding mechanism 16 after connecting to the measuring host 3. The outlet hole 1611 is used for the data cable to extend from the cable winding mechanism 16 and connect to the bottom end of the handle 201 of the detection mechanism 2.

[0047] The measuring host 3 is installed inside the housing 1 on one side and fixed by a shock-absorbing bracket. The host has a built-in spectrometer, data processing module and wireless communication module. The spectrometer has a resolution of up to 0.05nm and a detection wavelength range of 200-1100nm, which can realize qualitative and quantitative analysis of elements such as C, Si, Mn, P and S in iron components. The data processing module adopts an industrial-grade processor and supports real-time spectral analysis and data storage. The wireless communication module supports 4G and Wi-Fi and can upload the detection data to the cloud platform in real time. The measuring host 3 is connected to the cable winding mechanism 16 through a main cable 17. The main cable is essentially the same as the connecting cable and integrates power cord, signal line and optical fiber 2028. An operation module 9 is also installed on the upper part of the measuring host 3. The operation module 9 adopts a capacitive touch screen and is used to adjust the parameter settings of the measuring host 3, view historical data and generate test reports.

[0048] In summary, the working process of the multi-parameter detection device for iron components based on laser induction and electromagnetic induction provided by this invention is as follows: (1) After the equipment is started, the battery pack 6 provides a stable 12V power supply for the whole system. It can also be connected to the mains power supply through the AC220V power interface on the side of the box 1. The operator opens the box cover 4 and takes out the detection mechanism 2, which is fixed by the slot, from the box 1. The cable retraction mechanism 16 is used to pull out the connection cable with a maximum length of 5 meters to ensure the long-distance detection needs. The handle 201 of the detection mechanism 2 adopts an ergonomic gun-shaped design. When the operator holds it, he starts the equipment by pressing the power button on the operation panel 203. The display screen 204 displays basic information such as battery power and network status in real time. (2) In the coating thickness detection process, the film thickness measurement component 2022 on the upper front of the detection head 202 plays a core role. Based on the principle of electromagnetic induction, the built-in coil generates a high-frequency alternating electromagnetic field. When the detection head 202 comes into contact with the coating of the iron component, the metal substrate of the iron component generates eddy currents under the action of the electromagnetic field. The film thickness measurement component 2022 accurately calculates the coating thickness by measuring the magnitude of the feedback signal. The measurement data is transmitted to the display screen 204 and the measurement host 3 in real time for the operator to view. (3) For the size detection of iron components, the laser ranging component 2023 in the detection head 202 adopts laser phase difference measurement technology. It emits a modulated laser beam to irradiate the surface of the iron component and receives the reflected light. By comparing the phase difference between the emitted light and the reflected light, the size parameters of the iron component are calculated, realizing non-contact accurate measurement. The measurement results are also displayed in real time on the display screen 204 and the measurement host 3. (4) For elemental composition analysis, laser-induced breakdown spectroscopy is used. The laser emitter 2024 installed in the middle of the mounting frame 2021 outputs a laser beam, which is focused by the first transparent mirror 2025. The first transparent mirror 2025 is made of quartz and has a focal length of 50mm. It can focus the laser beam to a spot with a diameter of 50-100μm and irradiate the surface of the iron component, causing the surface material of the iron component to be excited to form plasma. The plasma light radiation is collected by the second transparent mirror 2027, which is made of high-transmittance optical glass. The collected light signal is transmitted to the measurement host 3 via a quartz optical fiber 2028 with a core diameter of 200μm and a numerical aperture of 0.22. The spectrometer built into the measurement host 38 has a resolution of up to 0.05nm and a detection wavelength range of 200-1100nm. The light signal is subjected to spectral analysis, thereby realizing the qualitative and quantitative analysis of elements such as C, Si, Mn, P, and S in the iron component. In addition, the industrial-grade data processing module inside the measuring host 3 performs real-time analysis and storage of various test data, and uploads the test data to the cloud platform in real time through the wireless communication module. Operators can adjust parameter settings, view historical data and generate test reports through the operation module 9 on the top of the measuring host 3.

[0049] During movement, operators can drag the equipment using the three-stage telescopic pull rod 10 on the upper part of the housing 1. The bottom casters 11 ensure stable parking even on slopes. The side pull rod 13 facilitates short-distance transport. The high-density EVA foam protective pad 12 inside the housing 4 provides all-round protection for components such as the testing mechanism 2 and the measuring host 3 when the equipment is not in operation. The locking cover 14 ensures that the housing 4 will not be accidentally opened during transportation. The information display panel 15 on the front of the housing 4 displays the equipment's power, working status, and cumulative number of tests in real time, making it convenient for managers to keep track of the equipment's status. In addition, the battery pack 6 supports hot-swapping to meet the needs of long-term field testing. The small inkjet printer mounting position reserved inside the housing 1 can be equipped with an inkjet printer according to user needs, automatically printing information such as testing time and equipment number on qualified iron components to achieve data traceability management.

[0050] The modules or units in the device of this invention can be merged, divided, and deleted according to actual needs. The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this invention still fall within the scope of the invention.

Claims

1. A multi-parameter detection device for ferrous members based on laser induction and electromagnetic induction, characterized in that, The utility model relates to a kind of iron member quality detection device, including: Box, detection mechanism and measurement host computer;The box side is rotatably connected with box cover, the detection mechanism and measurement host computer are all set in the box interior;And the detection mechanism can be taken out from the box interior, to be used to detect the quality of iron member;The detection mechanism includes film thickness measurement component, laser ranging component and element composition detection component, which are all electrically connected with the measurement host computer; The film thickness measurement component is used to detect the thickness of the coating of the iron member to be measured based on the principle of electromagnetic induction, and upload the measured coating thickness information to the measurement host computer for analysis and display by the measurement host computer. The laser ranging component is used to measure the size of the iron member to be measured based on the principle of laser phase difference, and upload the measured iron member size information to the measurement host computer for analysis and display by the measurement host computer. The element composition detection component is used to induce the plasma on the surface of the iron member by laser, so that the plasma radiates light signals of different wavelengths during the de-excitation process, and transmits the light signals of each radiation wavelength to the measurement host computer to analyze the composition and content of the elements in the iron member according to the wavelength and intensity information of each light signal combined with the spectral characteristics of known elements.

2. The laser-induction and electromagnetic induction-based multi-parameter detection apparatus for ferrous members according to claim 1, characterized in that, The lower side of the rear part of the box is provided with a power supply compartment, and a battery pack is installed inside the power supply compartment to provide power for the entire device.

3. The laser-induction and electromagnetic-induction based multi-parameter detection apparatus for ferrous members according to claim 2, characterized in that, The detection mechanism includes a handle and a detection head, and a cable winding and unwinding mechanism is fixedly installed inside the box.

4. The laser-induction and electromagnetic-induction based multi-parameter detection apparatus for ferrous members according to claim 3, characterized in that, The cable winding and unwinding mechanism includes a fixed wire frame, a fixed component, a fixed ring, a spiral spring and a rotating ring.

5. The laser-induction and electromagnetic induction based multi-parameter detection apparatus for ferrous members according to claim 3, wherein The upper part of the handle is also provided with an operation panel, which is integrated with a power key, a measurement key and a function switching key. The upper part of the operation panel is connected with a display screen for displaying detection information, battery level and network status.

6. The laser-induction and electromagnetic induction based multi-parameter detection apparatus for ferrous members according to claim 3, wherein The detection head is internally provided with a mounting frame, and the front upper side of the mounting frame is provided with the film thickness measuring assembly; a laser ranging assembly is arranged below the film thickness measuring assembly and is fixedly installed at the front end of the mounting frame; a laser emitter for emitting laser is further installed at the middle part of the mounting frame.

7. The laser-induction and electromagnetic-induction based multi-parameter detection apparatus for ferrous members according to claim 6, characterized in that, The front part of the laser emitter is provided with a first light transmission mirror for focusing laser, which is installed at the internal lower side of the detection head through a fixing frame, and is used for focusing the laser emitted by the laser emitter to the surface of the iron member to be detected; the lower part of the fixing frame is further provided with a second light transmission mirror, which is used for collecting the light signal returned by the iron member and transmitting the light signal to the measuring host through an optical fiber, so that the measuring host can perform spectrum analysis to determine the element composition and content of the iron member to be detected.

8. The laser-induction and electromagnetic induction based multi-parameter testing apparatus for ferrous members according to claim 1, wherein, An operation module is further installed at the internal upper part of the box and is used for adjusting the parameter setting of the measuring host, viewing historical data and generating a detection report.

9. The laser-induction and electromagnetic-induction based multi-parameter testing apparatus for ferrous members according to claim 1, characterized in that, The upper end of the box is provided with a telescopic pull rod, and the bottom sides of the box and the box cover are respectively provided with moving wheels, so as to facilitate the movement of the equipment by the operator.

10. The laser-induction and electromagnetic-induction based multi-parameter detection apparatus for ferrous members according to claim 9, characterized in that, The internal part of the box cover is provided with a protective pad for protecting the internal structure of the box.

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