CN217605725U

CN217605725U - High-power multimode light excitation infrared detection device

Info

Publication number: CN217605725U
Application number: CN202220651395.1U
Authority: CN
Inventors: 康玉宽; 高斌; 朱玉玉; 李知浩
Original assignee: Sichuan Mudisheng Technology Co ltd
Current assignee: Sichuan Mudisheng Technology Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-10-18
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses a high-power multi-mode light excitation infrared detection device, which belongs to the technical field of testing and comprises an outer cover and a reinforcing cover arranged at the lower end of the outer cover, wherein the upper end of the reinforcing cover is in a frustum pyramid shape, the lower end of the reinforcing cover is in a rectangle shape, a mounting plate is arranged at the top of the reinforcing cover, a light gathering cover is arranged at the center of the mounting plate and is in an inverted frustum pyramid shape, a thermal imager is arranged in the light gathering cover, and the lens of the thermal imager is higher than the lower end of the light gathering cover; and a halogen lamp is arranged at the periphery of the light-gathering cover. The utility model discloses not only make the detection head structure simpler, and make the spotlight effect of halogen lamp improve greatly to the light homogeneity that makes the detection head is better.

Description

High-power multimode light excitation infrared detection device

Technical Field

The utility model belongs to the technical field of the test, particularly, relate to a high-power multimode light excitation infrared detection device.

Background

The infrared thermal imaging detection technology is a novel nondestructive detection technology applied in multidisciplinary intersection and multiple fields. The research on the infrared thermal imaging detection technology has important significance in the fields of surface scanning of wind tunnel compressor blades, aerospace equipment shells, petrochemical pipelines, electric power transmission equipment, machinery, rail transit, new energy and the like.

The basic principle of the infrared thermal imaging detection technology is as follows: the tested piece is heated through a specific light excitation mode, due to the fact that discontinuity defects exist in the tested piece, heat transfer performance is affected, temperature difference is generated on the surface of the tested piece, and then infrared radiation capacity of the surface of the tested piece is different. And then, detecting the radiation distribution of the tested piece by using a thermal infrared imager, and obtaining the internal defect characteristic information of the tested piece through the acquired thermal image sequence and a corresponding optimization image processing algorithm.

In the existing infrared thermal imaging detection process, heating and detection need to be realized through two steps, namely, a tested piece needs to be heated firstly, then an infrared thermal imager is utilized to detect the tested piece, in the process, because the two steps are carried out separately, the heated tested piece can quickly lose heat along with the lapse of time, certain errors can appear in the result of subsequent infrared thermal imaging detection, and especially when detecting more precise parts such as wind tunnel blades and the like, the errors are very fatal. Secondly, the existing infrared thermal imaging detection device also has the problems of non-ideal convergence effect on the excitation light and low integration level.

To above-mentioned problem, a photoexcitation infrared thermal imaging nondestructive test system is disclosed in the patent application with application number CN202023325093.5, this system includes the excitation source module, the excitation source module includes the dustcoat, locate the snoot of dustcoat inside and the thermal imaging system that the head stretched into the snoot, it constitutes the optical array to be equipped with the halogen lamp in the snoot, integrate highly, portability is strong, can realize simultaneously by the heat treatment and the infrared detection of test piece, the error of detecting the appearance has been avoided heating earlier again, it improves by a wide margin to detect the precision. However, the excitation source module in the system has a complex structure, and the light condensation effect and the light uniformity are poor.

Therefore, a high-power multi-mode optical excitation infrared detection device capable of effectively improving the light condensation effect and the light uniformity is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-power multimode light excitation infrared detection device not only makes the detection head structure simpler, and makes the spotlight effect of halogen lamp improve greatly to the light homogeneity that the messenger detected the head is better.

For realizing the purpose of the utility model, the technical proposal adopted is that: a high-power multi-mode light excitation infrared detection device comprises an outer cover and a reinforcing cover arranged at the lower end of the outer cover, wherein the upper end of the reinforcing cover is in a frustum pyramid shape, the lower end of the reinforcing cover is rectangular, a mounting plate is mounted at the top of the reinforcing cover, a light gathering cover is mounted at the center of the mounting plate and is in an inverted frustum pyramid shape, a thermal imager is mounted in the light gathering cover, and a lens of the thermal imager is higher than the lower end of the light gathering cover; and a halogen lamp is arranged at the periphery of the light-gathering cover.

Further, install the lamp shade that is the terrace with edge form on the mounting panel, the lamp shade is arranged with the coaxial radial interval of snoot, and the halogen lamp is located between lamp shade and the snoot.

Furthermore, a plurality of halogen lamps are arranged on the mounting plate, and are uniformly distributed along the annular lamp holder at intervals to form an optical array.

Furthermore, the lamp holder is made of polyvinyl chloride materials.

Further, the annular lamp holder is made of brass.

Furthermore, the top surface of the outer cover is provided with a display screen, the inner wall of the outer cover is provided with limiting rabbets which are arranged oppositely, and two ends of the bottom surface of the display screen are respectively supported on the two limiting rabbets.

Furthermore, the top surface of the outer cover is also provided with a check ring for limiting the periphery of the display screen.

Furthermore, heat dissipation holes are formed in two opposite sides of the outer cover.

Furthermore, a heat dissipation fan is further installed on the outer cover.

Furthermore, handles are further installed on two opposite sides of the outer cover, and one end, close to the human body, of each handle in a standing mode is lower than one end, close to the back face of the outer cover, of each handle.

Furthermore, a manipulator support is further installed on the outer cover.

Furthermore, a camera support is further mounted on the manipulator support.

Furthermore, an anti-collision strip is arranged at the opening of the reinforcing cover.

The beneficial effect of the utility model is that,

the utility model forms the main structure of the detection head through the outer cover, the reinforcing cover and the mounting plate, so that the light-gathering cover does not need other parts for assistance when being installed, thereby the structure of the detection head is simpler; simultaneously, through adjusting the shape to the snoot to the material surface that awaits measuring that can more even project of the light of messenger's halogen lamp makes the spotlight effect of halogen lamp better, thereby makes the light homogeneity that detects the head improve greatly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of a high-power multi-mode optical excitation infrared detection device provided by the present invention;

fig. 2 is a front view of the high-power multi-mode optical excitation infrared detection device provided by the present invention;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;

fig. 4 is a partially enlarged view of a portion B in fig. 3.

Reference numbers and corresponding part names in the drawings:

1. dustcoat, 2, strengthen the cover, 3, mounting panel, 4, snoot, 5, thermal imaging system, 6, halogen lamp, 7, lamp shade, 8, lamp stand, 9, annular lighting fixture, 10, display screen, 11, spacing tang, 12, retaining ring, 13, louvre, 14, radiator fan, 15, handle, 16, manipulator support, 17, camera support, 18, anticollision strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 4, the utility model provides a high-power multi-mode optical excitation infrared detection device, which comprises an outer cover 1 and a reinforcing cover 2 arranged at the lower end of the outer cover 1, wherein the outer cover 1 and the reinforcing cover 2 are made of the same material, and the central axis of the outer cover 1 and the central axis of the reinforcing cover 2 are in the same straight line, so as to ensure the light-gathering effect of a detection head and simultaneously make the whole volume smaller, when the structure of the detection head is designed, the size of the outer cover 1 can be smaller than that of the reinforcing cover 2; meanwhile, in order to make the appearance of the detection head more beautiful, the outer cover 1 can adopt a streamline design, the top of the outer cover 1 and the bottom of the outer cover 1 can be provided with rectangles with regular shapes, and of course, in order to make the surface of the outer cover 1 smoother, the edges of the outer cover 1 can be rounded.

The outer cover 1 and the reinforcing cover 2 are both thin-walled structures, the upper edge of the reinforcing cover 2 is connected with the lower edge of the outer cover 1, the shading area of the reinforcing cover 2 is larger, the opening of the reinforcing cover 2 can be larger than that of the outer cover 1, therefore, the reinforcing cover 2 can be divided into two parts under the condition that the outer cover 1 is connected with the reinforcing cover 2, the upper end of the reinforcing cover 2 is arranged into a frustum pyramid shape, the lower end of the reinforcing cover 2 is arranged into a rectangular cylinder shape, and the reinforcing cover 2 can be integrally formed during production.

When the reinforcing cover 2 is produced, the upper end of the reinforcing cover 2 can be provided with a flange platform, so that when the outer cover 1 is connected with the reinforcing cover 2, the lower edge of the outer cover 1 can be supported on the flange platform, and then the lower edge of the outer cover 1 and the upper edge of the reinforcing cover 2 are fixed by screws; simultaneously, still can make mounting panel 3 when needs are installed, overlap mounting panel 3's edge and border platform edge, then adopt the screw with mounting panel 3 edge with strengthen cover 2 upper end the border platform fixed can, make mounting panel 3's installation more convenient.

The center of the mounting plate 3 is also provided with a light-gathering cover 4, the light-gathering cover 4 is mounted on the lower surface of the reinforcing cover 2, the light-gathering cover 4 and the mounting plate 3 can be integrally formed during production, and the light-gathering cover 4 can also be fixed on the mounting plate 3 in a later stage in a screw or welding mode and the like; meanwhile, the thermal imager 5 is further installed in the center of the installation plate 3, the thermal imager 5 detects the radiation distribution of the heated tested piece, the infrared thermal image sequence of the tested piece is further acquired and transmitted to the processing unit of the next stage, when the thermal imager 5 is installed, an installation hole can be formed in the center of the installation plate 3, the size of the installation hole is matched with the size of a lens of the thermal imager 5, after the lens of the thermal imager 5 is inserted in the installation hole, the size of the rear end of the thermal imager 5 is larger than that of the lens end of the thermal imager 5, so that after the lens of the thermal imager 5 penetrates through the installation hole, the thermal imager 5 can be clamped in the installation hole, and in order to enable the installation of the thermal imager 5 to be more stable, the rear end of the thermal imager 5 can be fixed with the installation plate 3 through screws.

When the thermal imager 5 is installed, the lens of the thermal imager 5 is slightly higher than the lower edge of the light-gathering cover 4, so that the lens of the thermal imager 5 does not extend out of the light-gathering cover 4. The periphery of spotlight still is provided with halogen lamp 6, and halogen lamp 6 is used for releasing the required light of detection, through snoot 4 and the cooperation of strengthening cover 2, utilizes optical path principle for the light of halogen lamp 6 can be more even projects the material surface that awaits measuring, thereby makes the measuring head have better light homogeneity.

In some embodiments, the mounting plate 3 is provided with the frustum-shaped lampshade 7, the center of the lampshade 7 and the center of the light-gathering cover 4 are on the same straight line, the lower edge of the lampshade 7 can be located between the frustum-shaped section of the reinforcing cover 2 and the straight cylindrical section of the reinforcing cover 2, so as to avoid the frustum-shaped section of the reinforcing cover 2 from influencing the light of the halogen lamp 6, and it is noted that the frustum-shaped section of the reinforcing cover 2 referred to herein is the frustum-shaped part of the reinforcing cover 2, and the straight cylindrical section of the reinforcing cover 2 is the straight cylindrical part of the reinforcing cover 2. Have the certain interval between the inner wall of lamp shade 7 and the outer wall of snoot 4, halogen lamp 6 is located between lamp shade 7 and the snoot 4, through snoot 4 and lamp shade 7's common cooperation, makes the homogeneity of the light of halogen lamp 6 improve greatly. When the lampshade 7 is installed, the upper end of the lampshade 7 can be fixed with the installation plate 3 in a welding or screw mode, the lampshade 7 is in a thin plate shape, the inclination direction of the lampshade 7 is opposite to that of the snoot 4, and in the design process, the included angle between the lampshade 7 and the snoot 4 can be adjusted according to actual conditions.

In some embodiments, a lamp holder 8 is further installed on the mounting plate 3, the lamp holder 8 is fixedly installed on the mounting plate 3 through welding or screws, an annular lamp holder 9 is further installed on the lamp holder 8, the annular lamp holder 9 is rectangular, and the center of the annular lamp holder 9 and the center of the light-gathering cover 4 are on the same straight line; simultaneously, 6 fluorescent tubes of hole axle complex halogen lamp are taken with the lighting fixture to halogen lamp 6, and halogen lamp 6 is a plurality of, and a plurality of 6 even intervals of circumference direction along annular lighting fixture 9 of halogen lamp are arranged and are constituted the light array, because annular lighting fixture 9 is the rectangle, consequently, the light array of here can adopt 4 6 constitutions of halogen lamp, 4 6 edges at annular lighting fixture 9 can be installed respectively to 4 halogen lamp, 6 power of every halogen lamp are 800W, 3200W totaled, can realize being tested a top layer 5 ~ 8mm, right the utility model discloses in the production process, chooseing for use of 6 power of halogen lamp can be adjusted according to actual demand, the power of 6 halogen lamp promptly can still be greater than 800W or be less than 800W. When the optical array is used, the using effects of the 4 halogen lamps 6 are the same, the fact that the light source of the tested part is radiated more uniformly is guaranteed, interference of light spots formed due to nonuniform light sources when the near-surface temperature field of the part to be detected is detected by the infrared thermal imager is reduced, and therefore detection accuracy is guaranteed.

In some embodiments, the lamp holder 8 is made of polyvinyl chloride material, so that the lamp holder 8 does not have a conductive function while supporting the annular lamp holder 9, thereby effectively preventing the electric leakage in the using process of the utility model.

In some embodiments, the annular lamp holder 9 is made of brass, so that the annular lamp holder 9 can support and fix the halogen lamp 6, and can supply power to the halogen lamp 6, thereby simplifying the conductive circuit of the halogen lamp 6.

In some embodiments, the top surface of the outer cover 1 is provided with the display screen 10, and when the thermal imager is used, the display screen 10 is connected with the central control, so that information acquired by the thermal imager 5 is analyzed and processed and then transmitted to the display screen 10 for displaying, and thus a thermal image of the surface layer of the tested piece can be observed in real time; because the top surface of the outer cover 1 is the display screen 10, the utility model discloses the watching when using is more convenient. The inner wall of the outer cover 1 is provided with two limiting steps which are oppositely arranged, the distance between the limiting step 11 and the display surface of the display screen 10 is matched with the thickness of the display screen 10, when the display screen 10 is installed, the two sides of the lower surface of the display screen 10 can be supported on the two limiting step 11, and the installation of the display screen 10 is more stable.

In some embodiments, the top surface of the outer cover 1 further has a retaining ring 12, the retaining ring 12 is annular, and an inner ring of the retaining ring 12 is matched with an outer periphery of the display screen 10, so that an annular step is formed at an upper end of the outer cover 1, so that when the display screen 10 is installed, an edge of the display screen 10 can be made on the annular step, and at this time, the retaining ring 12 stops and limits the periphery of the display screen 10, so that the installation of the display screen 10 is more stable.

In some embodiments, the louvre 13 that is used for 1 inside radiating to the dustcoat has still been seted up on the dustcoat 1, louvre 13 is the punch combination that a plurality of bar holes are constituteed, louvre 13 can be a set of also can be the multiunit, but in order to guarantee the radiating effect, louvre 13 can be preferential to adopt two sets ofly to make two sets of louvres 13 arrange in the relative both sides of dustcoat 1, but make external air convection pass inside dustcoat 1, with this realization to display screen 10, thermal imager 5 etc. cool down, thereby effectively improve the utility model discloses an operating time.

In some embodiments, still install radiator fan 14 on the dustcoat 1, when radiator fan 14 installs, radiator fan 14 is located the different sides of dustcoat 1 with louvre 13, avoid people handheld the utility model discloses the radiating effect to radiator fan 14 causes the influence, radiator fan 14 can install the back at dustcoat 1 by priority, two sets of louvres 13 are located the left and right sides of dustcoat 1 respectively, when radiator fan starts, external cold air is through the quick entering into dustcoat 1 of two sets of louvres 13 convection currents in, display screen 10 in the dustcoat 1, thermal imager 5 etc. carry out the heat exchange, and the hot-air that the heat exchange produced then passes through the quick discharge dustcoat 1 of radiator fan 14, make the flow velocity of cold air faster, thereby make display screen 10, thermal imager 5 etc. cooling effect improve greatly.

In some embodiments, handles 15 are further installed on two opposite sides of the outer cover 1, so that cold air can penetrate through the inner part of the outer cover 1 while entering the outer cover 1 conveniently, the arrangement mode of the two handles 15 can be the same as that of the two groups of heat dissipation holes 13, and the handles 15 are located at the upper end of the outer cover 1, so that the utility model is more convenient to use; simultaneously, handle 15 sets up along the length direction slope, makes handle 15 be the high one end of one end low, and is concrete, in order to accord with ergonomic design, handle 15's inclination can set to 15 to the one end that makes handle 15 stand near the people is less than the handle 15 and is close to the one end at the dustcoat 1 back, can make the user use minimum power when handheld as far as possible like this, thereby adversary's burden when having reduced the use, give the more comfortable operation experience of user.

In some embodiments, a manipulator support 16 is further installed on the housing 1, the manipulator support 16 may be in an H shape, four legs of the manipulator support 16 are bent downward and fixed on two oppositely arranged side walls of the housing 1, and a cross beam of the manipulator support 16 is provided with a screw hole for screw connection. When the utility model discloses when using with the arm dish cooperation, the accessible screw uses manipulator support 16 and arm cooperation, thereby makes the utility model discloses fix fast on the arm, thereby make the utility model discloses can realize automated inspection, make and do not need artifical the participation in the testing process.

In some embodiments, the robot arm support 16 is further provided with a camera support 17, the camera support 17 can be fixed on the robot arm support 16 by screws, and the camera support 17 extends along one side of the housing 1, so that the utility model discloses still can install other equipment on the camera support 17 to cooperate when using.

In some embodiments, an anti-collision strip 18 is further arranged at the opening of the reinforcing cover 2, and the anti-collision strip 18 is made of rubber, so that the reinforcing cover 2 can be effectively prevented from being damaged by collision or friction in the use or transportation process; meanwhile, in order to protect the display screen 10, a bumper strip 18 may be simultaneously installed at the edge of the upper end of the housing 1.

The utility model is used together with an excitation source control system, specifically, the excitation source control system comprises an industrial personal computer, a control unit and a signal generating unit; the thermal imager 5, the industrial personal computer, the control unit, the signal generating unit and the light array formed by the halogen lamps 6 are sequentially connected, and the industrial personal computer is bidirectionally connected with the control unit. When the thermal imaging system is used, the control unit controls the signal generating unit to generate a pulse signal to excite the optical array, the optical array further heats a tested piece, the thermal imager 5 detects the radiation distribution of the heated tested piece, then an infrared chart sequence of the tested piece is obtained and transmitted to the industrial personal computer, the industrial personal computer performs data processing on the infrared chart sequence of the tested piece, and image representation after the defect of the tested piece is enhanced is achieved.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are provided for clarity of description only, and are not intended to limit the scope of the invention. Other variations or modifications will occur to those skilled in the art based on the foregoing disclosure and are still within the scope of the invention.

Claims

1. The high-power multi-mode light excitation infrared detection device is characterized by comprising an outer cover (1) and a reinforcing cover (2) arranged at the lower end of the outer cover (1), wherein the upper end of the reinforcing cover (2) is in a prismoid shape, the lower end of the reinforcing cover (2) is in a rectangular shape, a mounting plate (3) is mounted at the top of the reinforcing cover (2), a light gathering cover (4) is mounted at the center of the mounting plate (3), the light gathering cover (4) is in an inverted prismoid shape, a thermal imager (5) is mounted in the light gathering cover (4), and a lens of the thermal imager (5) is higher than the lower end of the light gathering cover (4); and a halogen lamp (6) is arranged at the periphery of the light-gathering cover (4).

2. The high-power multi-mode light-excited infrared detection device according to claim 1, wherein a prism-shaped lampshade (7) is mounted on the mounting plate (3), the lampshade (7) and the light-gathering cover (4) are coaxially and radially arranged at intervals, and the halogen lamp (6) is located between the lampshade (7) and the light-gathering cover (4).

3. The high-power multi-mode optical excitation infrared detection device according to claim 2, wherein a lamp holder (8) is further mounted on the mounting plate (3), an annular lamp holder (9) is further mounted on the lamp holder (8), the number of the halogen lamps (6) is multiple, and the multiple halogen lamps (6) are uniformly arranged at intervals along the annular lamp holder (9) to form an optical array.

4. The high power multi-modal photo-excited infrared inspection device according to claim 3, wherein the lamp holder (8) is a lamp holder (8) made of polyvinyl chloride material.

5. The high-power multi-mode optical excitation infrared detection device according to claim 3, wherein the annular lamp holder (9) is an annular lamp holder (9) made of brass.

6. The high-power multi-mode optical excitation infrared detection device according to claim 1, wherein the top surface of the housing (1) is a display screen (10), the inner wall of the housing (1) is provided with limiting rabbets (11) which are arranged oppositely, and two ends of the bottom surface of the display screen (10) are respectively supported on the two limiting rabbets (11).

7. The high-power multi-mode optical excitation infrared detection device as claimed in claim 1, wherein the top surface of the housing (1) is further provided with a retaining ring (12) for limiting the periphery of the display screen (10).

8. The high-power multi-mode optical excitation infrared detection device according to claim 1, wherein heat dissipation holes (13) are further formed on two opposite sides of the housing (1).

9. The high-power multi-mode optical excitation infrared detection device according to claim 8, wherein a heat radiation fan (14) is further installed on the housing (1).

10. A high power multi-mode optical excitation infrared detection device according to any one of claims 1 to 9, wherein handles (15) are further mounted on opposite sides of the housing (1), and one end of each handle (15) near the human body to stand is lower than one end of each handle (15) near the back of the housing (1).

11. The high power multi-modal light-excited infrared detection device according to claim 7, wherein a manipulator support (16) is further mounted on the housing (1).

12. The high-power multi-mode optical excitation infrared detection device according to claim 11, wherein a camera bracket (17) is further mounted on the manipulator bracket (16).

13. A high power multi-mode optical excitation infrared detection device according to any one of claims 1 to 9, characterized in that an anti-collision strip (18) is further provided at the opening of the reinforcing cover (2).