CN220039677U

CN220039677U - Diamond temperature measuring device

Info

Publication number: CN220039677U
Application number: CN202320508983.4U
Authority: CN
Inventors: 袁稳; 郑怡; 王政磊; 李兵; 郑华
Original assignee: Chengdu Jingchuang Future Technology Co ltd
Current assignee: Chengdu Jingchuang Future Technology Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-11-17
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a diamond temperature measuring device, which solves the technical problem of low accuracy of measuring diamond temperature by an infrared thermometer. The camera can do circumferential circular motion around the top of the diamond growth cavity, and the camera shoots the internal situation of the diamond growth cavity through the window when passing through the window. According to the utility model, a camera is utilized to photograph the growth process of the diamond in the growth cavity, the obtained photograph is identified and analyzed, the temperature of the diamond is calculated according to the mapping relation between the color of the diamond and the temperature, and the temperature of most diamond crystals in the growth cavity is obtained by analyzing and calculating the photograph, so that the accuracy of measuring the temperature of the diamond in the growth cavity is improved compared with an infrared thermometer.

Description

Diamond temperature measuring device

Technical Field

The utility model belongs to the technical field of artificial diamond, and particularly relates to a diamond temperature measuring device.

Background

Microwave Plasma Chemical Vapor Deposition (MPCVD) is the preferred method for producing high quality diamond. The temperature is a key parameter in the diamond growth process, the proper temperature range can effectively improve the diamond growth efficiency and film forming quality, and the too low or too high temperature range can affect the diamond growth efficiency and quality, so that the diamond temperature measurement in the diamond growth process is particularly important, and the purpose of knowing the diamond temperature change in real time is to conveniently adjust each parameter in the diamond growth cavity according to the diamond temperature change, so that the diamond crystal temperature is in a proper range.

At present, the temperature of diamond crystals is mainly measured by an infrared thermometer in the MPCVD diamond growth process, but the infrared thermometer has the defect of low temperature measurement accuracy, and can only detect single points in a diamond growth cavity, and the measured temperature can only represent the temperature of one diamond crystal in a plurality of diamond crystals in the cavity and cannot represent the growth temperature of other diamond crystals. The temperature of the diamond crystal in different areas on the growth base station in the growth cavity is different, and the temperature range obtained by adjusting each parameter in the growth cavity according to the temperature of the single diamond crystal is not suitable for other diamond crystals.

The existing thermal imaging technology can well solve the problem that an infrared thermometer can only measure single-point temperature, but in the growth process of the MPCVD technology, an ultra-high temperature plasma group is formed on the surface of a diamond crystal, and the high temperature plasma group can interfere with the testing of the thermal imaging technology on the temperature of the diamond crystal, so that the accuracy of the thermal imaging technology for measuring the temperature of the diamond crystal is affected.

Disclosure of Invention

The utility model aims to solve the technical problems that: the diamond temperature measuring device is provided to solve the technical problem that the accuracy of infrared temperature measurement is low in the diamond crystal growth process.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a diamond temperature measuring device, includes that a plurality of circumference equipartition is in the window at diamond growth chamber top to and slidable mounting is in the camera at diamond growth chamber top, and the camera can encircle the diamond growth chamber top and do circumference circular motion, and the camera is through the inside condition of window shooting diamond growth chamber when passing through the window.

Further, the top of the diamond growth cavity is provided with an annular guide rail, a sliding block is connected to the annular guide rail in a sliding manner, the camera is arranged on the sliding block, and the top of the diamond growth cavity is provided with a driving mechanism which is connected with the sliding block and used for driving the sliding block to do circumferential circular motion along the annular guide rail.

Further, the driving mechanism comprises a driving motor arranged at the center of the top of the diamond growth cavity and a connecting piece connected to the driving shaft of the driving motor and connected with the sliding block.

Further, the connecting piece comprises a rotating shaft connected to the driving shaft of the driving motor, a driving rod connected with the rotating shaft, and a pair of arc-shaped linkage rods connected to the driving rod, wherein the sliding blocks are connected with the arc-shaped linkage rods.

Further, the driving rod and the pair of arc-shaped linkage rods are positioned on the same plane, and the pair of arc-shaped linkage rods are symmetrically distributed by taking the driving rod as a symmetrical axis.

Further, a shooting hole matched with the shooting visual angle direction of the camera is formed between the pair of arc-shaped linkage rods.

Further, a connecting plate is arranged on the sliding block, a rotating mechanism is arranged on the connecting plate, and the camera is rotatably arranged on the connecting plate through the rotating mechanism.

Further, the rotating mechanism comprises a rotating shaft arranged on the connecting plate, a rotating block arranged on the rotating shaft, a hoop arranged on the rotating block and a linear motor arranged on the sliding block; the linear motor driving shaft is hinged with the rotating block, and the camera is arranged in the hoop.

Further, a pair of connecting posts are arranged on the connecting plate, and the rotating shaft is rotatably arranged between the pair of connecting posts.

Further, the rotating block comprises a connecting block connected with the rotating shaft and an extending block integrally structured with the connecting block, an included angle of 30-45 degrees is formed between the extending block and the connecting block, and the driving shaft of the linear motor is hinged with the extending block.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model has simple structure, scientific and reasonable design and convenient use, takes a picture of the diamond growth process in the diamond growth cavity by using the camera, identifies and analyzes the obtained picture, and calculates the diamond temperature by the mapping relation between the color of the diamond and the temperature.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic diagram of a structure of a connection board.

Fig. 3 is a cross-sectional view of the annular rail and the support rod.

Fig. 4 is a schematic diagram of a slider structure.

Fig. 5 is an external view of a diamond growth chamber.

Fig. 6 is a diagram showing the hinge relationship between the driving shaft of the linear motor and the connecting block.

Wherein, the names corresponding to the reference numerals are:

the diamond crystal display device comprises a 1-diamond growth cavity, a 2-camera, a 3-singlechip, a 4-annular guide rail, a 5-sliding block, a 6-supporting rod, a 7-window, an 8-connecting plate, a 9-connecting column, a 10-rotating shaft, an 11-rotating block, a 12-hoop, a 13-connecting block, a 14-extending block, a 16-linear motor, a 19-driving motor, a 20-driving rod, a 21-shooting hole, a 22-arc-shaped linkage rod, a 23-rotating shaft, a 24-touch screen and a 25-diamond crystal.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus they should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; of course, it may be mechanically or electrically connected; in addition, the connection may be direct, indirect via an intermediate medium, or communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in fig. 1-6, the diamond temperature measuring device provided by the utility model comprises a plurality of windows 7 circumferentially uniformly distributed on the top of a diamond growth cavity 1, and a camera 2 slidably mounted on the top of the diamond growth cavity 1, wherein the camera 2 can do circumferential movement around the top of the diamond growth cavity 1, and the camera 2 shoots the internal situation of the diamond growth cavity 1 through the windows 7 when passing through the windows 7.

In this embodiment 1, the camera 2 is sequentially passed through each window 7 to capture the growth of diamond in the diamond growth chamber 1 while moving circumferentially around the top of the diamond growth chamber 1. The camera 2 photographs the growth of diamond in the diamond growth chamber 1 at a plurality of angles at the top of the diamond growth chamber 1, so that a plurality of diamond crystals 25 in the diamond growth chamber 1 are photographed.

The utility model has simple structure, scientific and reasonable design and convenient use, takes a picture of the growth process of the diamond in the diamond growth cavity 1 by using a camera, identifies and analyzes the obtained picture, and calculates the temperature of the diamond by the mapping relation between the color of the diamond and the temperature.

Example 2

The top of the diamond growth cavity 1 is provided with an annular guide rail 4, a sliding block 5 is connected to the annular guide rail 4 in a sliding way, the camera 2 is arranged on the sliding block 5, and the top of the diamond growth cavity 1 is provided with a driving mechanism which is connected with the sliding block 5 and used for driving the sliding block 5 to do circumferential circular motion along the annular guide rail 4.

In this embodiment 2, the annular guide rail 4 and the diamond growth chamber 1 are coaxial, the slide block 5 can slide on the annular guide rail 4, and the camera 2 performs circumferential circular motion around the top of the diamond growth chamber 1 in the following implementation manner: the driving mechanism drives the sliding block 5 to do circumferential and circumferential movement around the top of the diamond growth cavity 1 on the annular guide rail 4, and the moving sliding block 5 drives the camera 2 to do synchronous circumferential and circumferential movement around the top of the diamond growth cavity 1. The camera 2 is driven to do circumferential circular motion around the top of the diamond growth cavity 1 to shoot the diamond crystal 25, so that the camera 2 shoots the diamond crystal 25 in the diamond growth cavity 1 more conveniently, time-saving and labor-saving.

Example 3

The driving mechanism comprises a driving motor 19 arranged at the center of the top of the diamond growth chamber 1 and a connecting piece connected to the driving shaft of the driving motor 19 and connected with the sliding block 5.

This embodiment 3 gives a more preferable structure of the driving mechanism on the basis of embodiment 2, specifically: the driving mechanism comprises a driving motor 19 arranged at the center of the top of the diamond growth chamber 1 and a connecting piece connected to the driving shaft of the driving motor 19 and connected with the sliding block 5. Wherein the driving shaft of the driving motor 19 is positioned on the axis of the diamond growth chamber 1. The function of the connection is to transmit the movement on the drive shaft of the drive motor 19 to the slide 5 when the drive motor 19 is running. After the driving motor 19 is started, the driving shaft of the driving motor 19 rotates to drive the connecting piece to do circular motion around the axis of the driving shaft of the driving motor 19, and the moving connecting piece drives the sliding block 5 to do concentric circular motion on the annular guide rail 4.

The annular guide rail 4 is connected with the top of the diamond growth chamber 1 through a support rod 6.

Example 4

The connecting piece comprises a rotating shaft 23 connected to the driving shaft of the driving motor 19, a driving rod 20 connected with the rotating shaft 23, and a pair of arc-shaped linkage rods 22 connected with the driving rod 20, and the sliding block 5 is connected with the arc-shaped linkage rods 22.

This embodiment 4 gives a more preferable structure of the connector based on embodiment 3, specifically: the connecting piece comprises a rotating shaft 23 connected to the driving shaft of the driving motor 19, a driving rod 20 connected with the rotating shaft 23, and a pair of arc-shaped linkage rods 22 connected with the driving rod 20, and the sliding block 5 is connected with the arc-shaped linkage rods 22. The way in which the connection transmits the motion on the drive shaft of the drive motor 19 to the slide 5 is: the driving shaft of the driving motor 19 drives the rotating shaft 23 to rotate, the rotating shaft 23 drives the driving rod 20 to do circular motion around the axis of the driving shaft of the driving motor 19, the driving rod 20 drives the arc-shaped linkage rod 22 to do coaxial circular motion, the arc-shaped linkage rod 22 drives the sliding block 5 to do synchronous circular motion, and the moving sliding block 5 drives the camera 2 to do synchronous circumferential motion around the top of the diamond growth cavity 1.

Example 5

The driving rod 20 and the pair of arc-shaped linkage rods 22 are positioned on the same plane, and the pair of arc-shaped linkage rods 22 are symmetrically distributed by taking the driving rod 20 as a symmetrical axis.

Embodiment 5 is based on embodiment 4, and in embodiment 5, the driving rod 20 and the pair of arc-shaped linkage rods 22 are located on the same plane, so that the driving rod 20 and the pair of arc-shaped linkage rods 22 can perform better circumferential motion transmission. One end of the arc-shaped linkage rod 22 is symmetrically distributed by taking the driving rod 20 as a symmetrical axis, and the other end of the arc-shaped linkage rod 22 is symmetrically arranged on the front end surface and the rear end surface of the sliding block 5 in the circular motion direction, so that the connection between the arc-shaped linkage rod 22 and the sliding block 5 is firmer, and the circular motion transmission can be better carried out between the arc-shaped linkage rod 22 and the sliding block 5.

Example 6

A shooting hole 21 matched with the shooting visual angle direction of the camera 2 is formed between the pair of arc-shaped linkage rods 22.

In this embodiment 6 based on the embodiment 4, in this embodiment 6, the camera 2 receives the light reflected from the diamond crystal 25 emitted from the window 7 through the photographing hole 21, and the light forms a latent image on the photosensitive material in the camera, and the latent image is further processed to form an image. The shooting hole 21 can prevent the arc-shaped linkage rod 22 from blocking the reflected light rays emitted by the diamond crystal 25 in the diamond growth cavity 1 through the window 7, so that the shooting of the diamond crystal 25 by the camera 27 is not affected by the arc-shaped linkage rod 22.

Example 7

The slide block 5 is provided with a connecting plate 8, the connecting plate 8 is provided with a rotating mechanism, and the camera 2 is rotatably arranged on the connecting plate 8 through the rotating mechanism.

Embodiment 7 is based on embodiment 2, and in embodiment 7, the camera 2 is rotatable clockwise and counterclockwise on the connection plate 8 by a rotation mechanism. The camera 2 is mounted on the slider 5 by means of a connection plate 8 instead of being mounted directly on the slider 5, with the aim of providing a rotational space for the rotation of the camera 2. In the process that the camera 2 circumferentially and circularly moves around the top of the diamond growth cavity 1, when the growth condition of the diamond in the diamond growth cavity 1 is shot through the window 7, the camera 2 is controlled to rotate clockwise and anticlockwise on the connecting plate 8, and the range that the camera 2 shoots the diamond crystal through the window 7 can be adjusted.

Example 8

The rotating mechanism comprises a rotating shaft 10 arranged on the connecting plate 8, a rotating block 11 arranged on the rotating shaft 10, a hoop 12 arranged on the rotating block 11 and a linear motor 16 arranged on the sliding block 5; the driving shaft of the linear motor 16 is hinged with the rotating block 11, and the camera 2 is arranged in the hoop 12.

In this embodiment 8 based on embodiment 7, in this embodiment 8, the camera 2 is detachably connected to the ferrule 12, a plurality of threaded through holes are formed in the sidewall of the ferrule 12, and after the camera 2 is mounted in the ferrule 12, the camera 2 and the ferrule 12 can be fastened and connected by screwing bolts into the through holes according to the size of the camera 2.

The linear motor 16 is used for driving the camera 2 to rotate on the connecting plate 8, the rotating block 11 is fixedly connected with the rotating shaft 10, and when the linear motor drives the rotating block 11 to move away from the linear motor 16, the rotating block 11 rotates anticlockwise around the rotating shaft 10, and the rotating block 11 drives the camera 2 to synchronously rotate anticlockwise. When the linear motor drive shaft pulls the rotating block 11 to move towards the direction approaching the linear motor 16, the rotating block 11 rotates clockwise around the rotating shaft 10, and the rotating block 11 drives the camera 2 to synchronously rotate clockwise. The linear motor 16 drives the camera 2 to rotate in the vertical direction in the forward and reverse directions, so as to finely adjust the angle of the camera 2 shooting the diamond crystal through the window 7, and increase the shooting range of the camera 2 to the diamond crystal.

In the process of driving the rotating block 11 to rotate by the linear motor 16, one end, which is contacted with the rotating block 11, of a driving shaft of the linear motor 16 is displaced along with the rotation of the rotating block 11, and an included angle between the driving shaft of the linear motor 16 and a vertical plane is also changed. But the linear motor 16 is obliquely fixed on the sliding block 5, the included angle between the driving shaft of the linear motor 16 and the vertical plane is fixed, and the fixed included angle between the driving shaft of the linear motor 16 and the vertical plane can influence the displacement change of one end, contacted with the rotating block 11, of the driving shaft of the linear motor 16, so that the rotating block 11 is influenced to rotate. In order to smoothly drive the rotating block 11 to rotate by the linear motor 16, the driving shaft of the linear motor 16 needs to be connected with the rotating block 11 in a hinged manner, so that even if the included angle between the driving shaft of the linear motor 16 and the vertical plane is fixed, one end of the driving shaft of the linear motor 16, which contacts with the rotating block 11, can displace, and further smoothly push or pull the rotating block 11 to move.

Example 9

The connecting plate 8 is provided with a pair of connecting posts 9, and a rotating shaft 10 is rotatably arranged between the pair of connecting posts 9.

In this embodiment 9 based on embodiment 8, in this embodiment 9, through holes adapted to the rotating shaft 10 are respectively formed in a pair of connecting posts 9, two ends of the rotating shaft 10 are disposed in the through holes in a penetrating manner, and two ends of the rotating shaft 10 are in clearance fit with the through holes, so that the rotating shaft 10 can rotate between the pair of connecting posts 9 when being subjected to an external force.

Example 10

The rotating block 11 comprises a connecting block 13 connected with the rotating shaft 10 and an extending block 14 integrated with the connecting block 13, an included angle of 30-45 degrees is formed between the extending block 14 and the connecting block 13, and a driving shaft of the linear motor 16 is hinged with the extending block 14.

In this embodiment 10 based on embodiment 8, in this embodiment 10, the outer wall of the top of the diamond growth chamber 1 is in a shape of a truncated cone, the window 7 is opened on the truncated cone surface on the top of the diamond growth chamber 1, and an included angle exists between the window 7 and the horizontal plane. After the camera 2 is arranged in the hoop 12, the included angle of the camera 2 relative to the rotating block 11 is 30-45 degrees, so that the camera 2 can shoot diamond crystals in the diamond growth cavity 1 through the window 7 at the top of the diamond growth cavity 1.

The driving motor 19 used in the present utility model is a servo motor.

The linear motor 16 and the driving motor 19 according to the present utility model are all conventionally known electrical devices, and the structures, circuits, and control principles of the linear motor 16 and the driving motor 19 are conventionally known, and therefore, the structures, circuits, and control principles of the linear motor 16 and the driving motor 19 are not repeated here.

The utility model controls the start and stop of the linear motor 16 and the driving motor 19 through the singlechip with the model STM 32. The outer wall of the diamond growth cavity 1 is provided with a touch screen 24 connected with the STM32 singlechip, and the touch screen 24 sends a command for starting and stopping the linear motor 16 or the driving motor 19 to the STM32 singlechip.

Finally, it should be noted that: the above embodiments are merely preferred embodiments of the present utility model for illustrating the technical solution of the present utility model, but not limiting the scope of the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; that is, even though the main design concept and spirit of the present utility model is modified or finished in an insubstantial manner, the technical problem solved by the present utility model is still consistent with the present utility model, and all the technical problems are included in the protection scope of the present utility model; in addition, the technical scheme of the utility model is directly or indirectly applied to other related technical fields, and the technical scheme is included in the scope of the utility model.

Claims

1. The utility model provides a diamond temperature measuring device, its characterized in that includes window (7) that a plurality of circumference equipartition was located diamond growth chamber (1) top to and slidable mounting is in camera (2) at diamond growth chamber (1) top, and camera (2) can encircle diamond growth chamber (1) top and do circumference circular motion, and camera (2) shoot the inside condition in diamond growth chamber (1) through window (7) when window (7).

2. The diamond temperature measuring device according to claim 1, wherein the top of the diamond growth chamber (1) is provided with a circular guide rail (4), a sliding block (5) is slidably connected to the circular guide rail (4), the camera (2) is mounted on the sliding block (5), and the top of the diamond growth chamber (1) is provided with a driving mechanism connected with the sliding block (5) and used for driving the sliding block (5) to do circumferential circular motion along the circular guide rail (4).

3. A diamond temperature measuring device according to claim 2, wherein the driving mechanism comprises a driving motor (19) provided in the center of the top of the diamond growth chamber (1), and a connecting member connected to the driving shaft of the driving motor (19) and connected to the slider (5).

4. A diamond temperature measuring device according to claim 3, wherein the connection member comprises a rotation shaft (23) connected to a drive shaft of the drive motor (19), a drive lever (20) connected to the rotation shaft (23), and a pair of arc-shaped links (22) connected to the drive lever (20), and the slider (5) is connected to the arc-shaped links (22).

5. A diamond temperature measuring device according to claim 4, wherein the driving rod (20) and the pair of arc-shaped links (22) are located on the same plane and the pair of arc-shaped links (22) are symmetrically distributed with the driving rod (20) as a symmetry axis.

6. A diamond temperature measuring device according to claim 4, wherein a photographing hole (21) adapted to the photographing viewing angle direction of the camera (2) is defined between the pair of arc-shaped links (22).

7. A diamond temperature measuring device according to claim 2, characterized in that the slide (5) is provided with a connecting plate (8), the connecting plate (8) is provided with a rotating mechanism, and the camera (2) is rotatably mounted on the connecting plate (8) through the rotating mechanism.

8. A diamond temperature measuring device according to claim 7, wherein the rotation mechanism comprises a rotation shaft (10) provided on the connection plate (8), a rotation block (11) mounted on the rotation shaft (10), a hoop (12) provided on the rotation block (11), and a linear motor (16) provided on the slider (5); the driving shaft of the linear motor (16) is hinged with the rotating block (11), and the camera (2) is arranged in the hoop (12).

9. A diamond temperature measuring device according to claim 8, wherein the connection plate (8) is provided with a pair of connection posts (9), and the rotation shaft (10) is rotatably installed between the pair of connection posts (9).

10. A diamond temperature measuring device according to claim 8, wherein the rotating block (11) comprises a connecting block (13) connected with the rotating shaft (10), and an extending block (14) integrally formed with the connecting block (13), an included angle of 30 ° -45 ° is formed between the extending block (14) and the connecting block (13), and a driving shaft of the linear motor (16) is hinged with the extending block (14).