Metal content detection device and method based on infrared spectrum technology

Abstract

The invention discloses a metal content detection device and method based on an infrared spectrum technology in the field of metal detection.The metal content detection device comprises a handheld part, a detection box is fixedly connected to the handheld part, an opening is formed in the side, away from the handheld part, of the detection box, and a light beam receiver and a light beam emitter are arranged on the side, close to the handheld part, of the detection box; the light beam emitter is provided with a universal joint used for adjusting the emitting direction, a controller is fixedly connected to the detection box, and a contour scanner is arranged in the detection box. The controller is used for acquiring information of the to-be-detected surface scanned by the contour scanner and generating a surface contour diagram of the to-be-detected surface, point location feature information meeting the requirement that the light beam is reflected to the light beam receiver is preset in the controller, point location features at least comprise the point location size, the inclination angle and coordinates, and point locations meeting the requirement of light beam reflection on the surface contour diagram of the to-be-detected surface are captured; and the universal joint is controlled to adjust the emitting direction of the light beam emitter to face a single point. By adopting the technical scheme of the invention, the metal piece with an uneven surface can be detected.

Description

Technical Field

[0001] The present invention belongs to the field of metal detection, and specifically relates to a metal content detection device and method based on infrared spectroscopy technology. Background Art

[0002] Metal spectral analysis is a commonly used analytical method for determining the content and composition of various elements in metal samples. It utilizes the spectral characteristics of metal samples under specific conditions, and determines the composition and properties of metals by measuring and analyzing the spectral signals emitted by metal samples. This analytical method is widely used in fields such as materials science, metal industry, and environmental monitoring, and has the advantages of being fast, accurate, and non-destructive. The basis of metal spectral analysis is the characteristic spectra generated by the transition of atoms between energy levels. When a metal sample is excited by external energy, the atoms in it will transition from the ground state to the excited state, absorb energy of a certain wavelength, and emit light of a specific wavelength. The spectral information of these specific wavelengths can be collected and analyzed by devices such as spectrometers and photomultiplier tubes.

[0003] In the prior art, when analyzing the composition by irradiating the metal surface and then obtaining its reflection spectrum, the surface of the metal to be measured is usually ground to reduce the interference of the unevenness of the metal surface on the optical path in spectral detection. The grinding process is rather troublesome and will cause structural damage to the metal specimen. Therefore, a metal content detection device and method based on infrared spectroscopy technology that can adapt to the unevenness of the metal surface are needed. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a metal content detection device based on infrared spectroscopy technology, which can detect metal parts with uneven surfaces.

[0005] In order to achieve the above purpose, the technical solution of the present invention is as follows: A metal content detection device based on infrared spectroscopy technology includes a handheld part, a detection box is fixedly connected to the handheld part, an opening is provided on one side of the detection box away from the handheld part, a beam receiver and a beam emitter are provided on one side of the detection box close to the handheld part, the beam emitter is provided with a universal joint for adjusting the emission direction, a controller is fixedly connected to the detection box, and a contour scanner is provided inside the detection box;

[0006] The controller is used to obtain the information of the surface to be detected scanned by the contour scanner and generate a surface contour map of the surface to be detected. Point feature information for the beam to be reflected to the beam receiver is preset in the controller. The point features at least include point size, tilt angle, and coordinates. The points on the surface contour map of the surface to be detected that satisfy beam reflection are captured, and the universal joint is controlled to adjust the emission direction of the beam emitter to face a single point.

[0007] The following beneficial effects are achieved after adopting the above solution:

[0008] 1. The user can hold the handheld part, press the detection box against the metal to be detected, the beam emitter emits a beam to strike the metal surface, and the beam receiver acquires the beam information after the strike for spectral analysis, thereby detecting the metal composition.

[0009] 2. When the surface to be measured of the metal to be detected is uneven, it will cause the beam emitted by the beam emitter to be difficult to successfully return to the beam receiver. Therefore, it is necessary to preprocess the surface to be measured of the metal to be detected to ensure that the reflected beam is successfully received. The universal joint can adjust the incident angle, increasing the optical path for obtaining the reflected beam. By using a contour scanner, the shape of the metal surface to be detected can be obtained, and it can be judged whether there are points that meet the conditions for beam reflection on the surface to be measured. Then, by irradiating these points, the reflected beam is made to strike the beam receiver to adapt to the complex contour of the surface to be measured.

[0010] Compared with the prior art, by performing contour detection on the surface to be measured of the metal to be detected, due to the different tilt angles at the uneven places, the reflected optical path will change. By using a universal joint to adjust the emission angle of the beam, it can adapt to the tilt angle, move the reflected optical path back to the beam receiver, thereby adapting to the complex contour of the surface to be measured, reducing the workload of preprocessing, and enabling the metal sample to complete the detection work without structural damage.

[0011] Further, the beam emitter is provided with a first driver for driving the beam emitter to move along the length direction of the detection box.

[0012] Beneficial effect: The first driver can drive the beam emitter to move along the length direction of the detection box to achieve more point selection that meets the beam reflection.

[0013] Further, the beam emitter is provided with a second driver for driving the beam emitter to move along the width direction of the detection box.

[0014] Beneficial effect: The second driver can drive the beam emitter to move along the width direction of the detection box to achieve more point selection that meets the beam reflection.

[0015] Further, a flexible contact sleeve is fixedly connected to the opening of the detection box.

[0016] Beneficial effect: The flexible contact sleeve can undergo elastic deformation, so that the opening of the detection box can better contact the surface to be measured, fit the uneven places of the surface to be measured, reduce the light leakage rate, and reduce the interference of natural light on spectral detection.

[0017] Further, the detection box is connected to a gas filler, and the gas filler is used to introduce antioxidant gas into the detection box.

[0018] Beneficial effect: Anti-oxidation gas can reduce the oxidation reaction of metal during the detection process, thereby ensuring the detection accuracy and reducing the impact on metal samples.

[0019] Furthermore, the gas filler includes an air pump and a gas storage bottle. The air pump is used to extract the gas in the detection box and form a negative pressure in the detection box so that the flexible contact sleeve can absorb and fix the surface to be detected. The gas storage bottle is used to store and release anti-oxidation gas.

[0020] Beneficial effects: The vacuum pump can exhaust the air in the test box, and the gas storage bottle is used to inject anti-oxidation gas into the test box to ensure the accuracy of the spectrum detection process. In addition to exhausting the original air in the test box, the vacuum pump can also use negative pressure to make the flexible contact sleeve suck the surface to be tested, thereby stabilizing the position of the test box and reducing the change of the beam path caused by the shaking of the user's hand.

[0021] Furthermore, a touch screen is fixedly connected to the outside of the detection box, and the touch screen is used to display the surface contour map scanned by the contour scanner and mark the emission selected points.

[0022] Beneficial effects: The touch screen can display the detection information, and the surface contour map can let the user know the specific detection point, and the user can select the point detection result he wants according to the contour map, which not only improves the intelligence of the device, but also can place small metal samples in the detection box for detection at designated positions.

[0023] Furthermore, the controller is also used to obtain detection information from the light beam receiver, and if the metal content in the detection information is lower than a preset value, the selected point for transmission is switched.

[0024] Beneficial effect: In addition to being irregular, the surface to be tested may also be mixed with non-metallic materials. By analyzing the metal content in the detection information, the material information of the detection point can be obtained. By switching the selected points for emission, the metal points can be selected to achieve the purpose of metal detection.

[0025] Furthermore, if there is no point on the surface to be inspected that satisfies the light beam reflection requirement or the metal content of the points that satisfy the light beam reflection requirement is lower than a preset value, an alarm is issued.

[0026] Beneficial effect: If the surface to be inspected is too irregular, or the regular parts are all non-metallic, an alarm will be issued to remind the user to switch the inspection position or perform certain pretreatment.

[0027] A method for using a metal content detection device based on infrared spectroscopy technology includes cleaning a surface to be detected, holding a handheld part to make a flexible contact sleeve against the surface to be detected, and waiting for the detection result after the flexible contact sleeve tightly absorbs the surface to be detected.

[0028] Beneficial effects: Simplify the pretreatment, only need to clean the detection surface, reduce the influence of impurities and dust, and the light beam will be adaptively adjusted to meet the detection requirements under different complex conditions. Description of the Drawings

[0029] Figure 1 Isometric schematic diagram of an embodiment of the present invention.

[0030] Figure 2 Schematic diagram of the detection box structure of an embodiment of the present invention.

[0031] Figure 3 Schematic diagram of the controller logic of an embodiment of the present invention. Detailed Description of the Invention

[0032] The following is a further detailed description through specific embodiments:

[0033] The reference numerals in the accompanying drawings of the specification include: a handheld part 1, a detection box 2, an opening 3, a light beam receiver 4, a light beam emitter 5, a universal joint 6, a controller 7, a contour scanner 8, a first driver 9, a second driver 10, a flexible contact sleeve 11, an air extraction pump 12, a gas storage bottle 13, and a touch display screen 14.

[0034] Embodiment 1

[0035] The embodiment is basically as shown in the attached Figure 1 to the attached Figure 3 as shown:

[0036] A metal content detection device based on infrared spectroscopy technology includes a handheld part 1. A control switch is installed on the handheld part 1. A detection box 2 is fixed to the handheld part 1 by screws. An opening 3 is provided on the side of the detection box 2 away from the handheld part 1. A flexible contact sleeve 11 is adhesively fixed at the opening 3 of the detection box 2. A light beam receiver 4 and a light beam emitter 5 are fixed to the side of the detection box 2 close to the handheld part 1 by screws. The light beam emitter 5 is provided with a universal joint 6 for adjusting the emission direction. A controller 7 is fixed to the detection box 2 by screws. A contour scanner 8 is installed inside the detection box 2. The model of the contour scanner 8 is ZLDS100. The controller 7 is used to obtain the information of the surface to be detected scanned by the contour scanner 8 and generate a surface contour map of the surface to be detected. Point feature information for the light beam to be reflected to the light beam receiver 4 is preset in the controller 7. The point features at least include point size, tilt angle, and coordinates. Capture the points on the surface contour map of the surface to be detected that satisfy the light beam reflection, and control the universal joint 6 to adjust the emission direction of the light beam emitter 5 to face a single point.

[0037] The user can hold the handheld part 1, press the detection box 2 against the metal to be detected, and make the flexible contact sleeve 11 fit the detected metal. The flexible contact sleeve 11 can undergo elastic deformation, so that the opening 3 of the detection box 2 can better contact the surface to be measured, fit the unevenness of the surface to be measured, reduce the light leakage rate, and reduce the interference of natural light on spectral detection. The beam emitter 5 emits a beam to strike the metal surface, and the beam receiver 4 obtains the beam information after the strike for spectral analysis, thereby detecting the metal composition. When the surface to be measured of the detected metal is uneven, it will cause the beam emitted by the beam emitter 5 to be difficult to successfully return to the beam receiver 4. Therefore, it is necessary to preprocess the surface to be measured of the detected metal to ensure that the reflected beam is successfully received. The universal joint 6 can adjust the incident angle, increasing the optical path for obtaining the reflected beam. By using the contour scanner 8, the shape of the detected metal surface can be obtained, and it can be judged whether there are points on the surface to be measured that meet the conditions for beam reflection, and the reflected beam can be made to strike the beam receiver 4 by irradiating these points to adapt to the complex contour of the surface to be measured.

[0038] A first driver 9 for driving the beam emitter 5 to move along the length direction of the detection box 2 is installed between the beam emitter 5 and the detection box 2, and a second driver 10 for driving the beam emitter 5 to move along the width direction of the detection box 2 is installed between the beam emitter 5 and the detection box 2. Both the first driver 9 and the second driver 10 are electric lead screws.

[0039] The first driver 9 can drive the beam emitter 5 to move along the length direction of the detection box 2, and the second driver 10 can drive the beam emitter 5 to move along the width direction of the detection box 2. Through the cooperation of the first driver 9 and the second driver 10, the beam emitter 5 can be moved to more positions, thereby performing more perfect light adjustment.

[0040] The detection box 2 is connected to a gas filler, and the gas filler is used to introduce an anti-oxidation gas into the detection box 2. The anti-oxidation gas is argon. The gas filler includes an air pump 12 and a gas storage bottle 13. The air pump 12 is used to pump out the gas in the detection box 2 and create a negative pressure in the detection box 2, so that the flexible contact sleeve 11 sucks the surface to be detected and fixes it. The gas storage bottle 13 is used to store and release the anti-oxidation gas.

[0041] The anti-oxidation gas can reduce the oxidation reaction of the metal during the detection process, thereby ensuring the detection accuracy and reducing the impact on the metal sample. The air pump 12 can discharge the air in the detection box 2, and the gas storage bottle 13 is used to inject the anti-oxidation gas into the detection box 2 to ensure the accuracy of the spectral detection process. In addition to discharging the original air in the detection box 2, the air pump 12 can also suck the flexible contact sleeve 11 against the surface to be detected through negative pressure, thereby stabilizing the position of the detection box 2 and reducing the change of the beam path caused by the shaking of the user's hand.

[0042] A touch screen 14 is fixed by screws on the outside of the detection box 2. The touch screen 14 is used to display the surface profile scanned by the profile scanner 8 and mark the selected points for emission. The controller 7 is also used to obtain the detection information of the beam receiver 4. If the metal content in the detection information is lower than the preset value, the selected points for emission are switched. If there is no point on the surface to be detected that satisfies the beam reflection or the metal content of the points that meet the beam reflection is lower than the preset value, an alarm is issued.

[0043] The touch screen 14 can display the detection information, and the user can know the specific detection points through the surface contour map, and the user can select the desired point detection result according to the contour map. In addition to being irregular, the surface to be detected may also be mixed with non-metallic materials, such as plastics, ceramics, etc. By analyzing the metal content in the detection information, the material information of the detection point can be obtained, and the metal point can be selected by switching the selected point to achieve the purpose of metal detection. Thereby adapting to the detection of complex handicrafts and reducing the demand for metal exposure area. If the surface to be detected is too irregular, or the regular parts are all non-metallic, an alarm will be issued to remind the user to switch the detection position or perform certain pretreatment.

[0044] A method for using a metal content detection device based on infrared spectroscopy technology includes cleaning a surface to be detected, holding a handheld part 1 so that a flexible contact sleeve 11 is pressed against the surface to be detected, and waiting for the detection result after the flexible contact sleeve 11 tightly absorbs the surface to be detected.

[0045] To simplify the pre-processing, only the detection surface needs to be cleaned to reduce the impact of impurities and dust. The light beam will be adaptively adjusted to meet the detection requirements under different complex conditions.

[0046] Embodiment 2

[0047] The difference from the above embodiment is that it is used to detect metal parts smaller than the opening 3. The metal parts are placed on a plane, the detection box 2 is covered on the metal parts, the flexible contact sleeve 11 sucks the plane tightly, and the contour scanner 8 scans the points in the detection box 2 that meet the light beam reflection. The user can observe the imaging information on the touch screen 14, select the points on the metal parts for detection, and complete the detection of metal parts smaller than the opening 3.

[0048] The above are only embodiments of the present invention. Common knowledge such as specific structures and characteristics known in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the invention pertains before the filing date or the priority date, are able to learn all the prior art in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, perfect and implement this solution in combination with their own abilities. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope claimed in this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A metal content detection device based on infrared spectroscopy technology, characterized in that: It includes a handheld part, on which a detection box is fixedly connected. There is an opening on one side of the detection box away from the handheld part, and a beam receiver and a beam emitter are provided on one side of the detection box close to the handheld part. The beam emitter is provided with a universal joint for adjusting the emission direction. A controller is fixedly connected to the detection box, and a contour scanner is arranged inside the detection box; The controller is used to obtain the information of the surface to be detected scanned by the contour scanner and generate a surface contour map of the surface to be detected. Point feature information for the beam to be reflected to the beam receiver is preset in the controller. The point features at least include point size, tilt angle, and coordinates. Capture the points on the surface contour map of the surface to be detected that satisfy the beam reflection, and control the universal joint to adjust the emission direction of the beam emitter towards a single point.

2. The metal content detection device based on infrared spectroscopy technology according to claim 1, wherein: The beam emitter is provided with a first driver for driving the beam emitter to move along the length direction of the detection box.

3. The metal content detection device based on infrared spectroscopy technology according to claim 1, wherein: The beam emitter is provided with a second driver for driving the beam emitter to move along the width direction of the detection box.

4. The metal content detection device based on infrared spectroscopy technology according to claim 3, wherein: A flexible contact sleeve is fixedly connected to the opening of the detection box.

5. The metal content detection device based on infrared spectroscopy technology according to claim 4, wherein: The detection box is communicated with a gas filler, and the gas filler is used to introduce antioxidant gas into the detection box.

6. The metal content detection device based on infrared spectroscopy technology according to claim 5, wherein: The gas filler includes a suction pump and a gas storage bottle. The suction pump is used to pump out the gas in the detection box and create a negative pressure in the detection box, so that the flexible contact sleeve sucks the surface to be detected and fixes it. The gas storage bottle is used to store and release antioxidant gas.

7. The metal content detection device based on infrared spectroscopy technology according to claim 6, characterized in that: A touch display screen is fixedly connected to the outside of the detection box, and the touch display screen is used to display the surface contour map scanned by the contour scanner and mark the selected emission points.

8. The metal content detection device based on infrared spectroscopy technology according to claim 7, wherein: The controller is also used to obtain the detection information of the beam receiver. If the metal content in the detection information is lower than the preset value, switch the selected emission points.

9. The metal content detection device based on infrared spectroscopy technology according to claim 8, characterized in that: If there are no points on the surface to be detected that satisfy the beam reflection or the metal content of the points that satisfy the beam reflection is lower than the preset value, an alarm is issued.

10. A method for detecting metal content based on infrared spectroscopy technology, characterized in that: The usage method of the metal content detection device based on infrared spectroscopy according to claim 9 includes cleaning the surface to be detected, holding the handheld part and making the flexible contact sleeve abut against the surface to be detected. After the flexible contact sleeve tightly sucks the surface to be detected, wait for the detection result.

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