Rotatable and adjustable integrated component of photodiode and light beam stopper

Abstract

The utility model provides a rotatably adjustable integrated component of a photodiode and a light beam stopper, which relates to the field of X-ray diffraction experimental instruments and consists of a fixed table, a translation table, a second translation table, an adapter plate, a vertical plate, a rotating arm, an L-shaped arm, a damping hinge, the photodiode and a central light beam stopper, an adapter plate is installed on the translation table and is in threaded connection with a vertical plate, the vertical plate is fixedly connected with the second translation table, the side face of the second translation table is in threaded connection with an L-shaped arm, the L-shaped arm fixes a rotating arm through a damping hinge, a center light beam stopper is fixed to the tail end of the rotating arm, and a photodiode is embedded into the front end of the center light beam stopper. And the limiting plate is mounted on the L-shaped arm. According to the utility model, through integration of the translation stage, the second translation stage, the damping hinge, the rotating arm, the central light beam stopper and the photodiode, the instrument is stable, the operation is simple and convenient, and the tediousness of the experiment and unnecessary errors are avoided.

Description

Technical Field

[0001] The utility model relates to the field of X-ray diffraction experimental instruments, in particular to an integrated component of a rotatably adjustable photodiode and a beam blocker. Background Art

[0002] X-ray technology is a fast, accurate and high-speed non-destructive testing technology for materials derived after the discovery of X-rays. The characteristics of X-rays are extremely high frequency, extremely short wavelength, strong energy and penetrating. Based on the above characteristics of X-rays, people have conducted in-depth research on them to explore their wide range of uses. To this day, in medicine, due to the penetrating nature of X-rays, when X-rays pass through different tissues of the human body, they are absorbed to different degrees, and different images can be obtained after imaging processing, so medical equipment in hospitals will use it to detect the human body. In the industrial field, there is a non-destructive testing method that uses the characteristics of X-rays penetrating materials and attenuating in materials to find defects. X-rays can detect internal defects of metal and non-metal materials and their products, such as pores, slag inclusions, incomplete penetration and other volume defects in welds. In the field of scientific research, when a beam of X-rays passes through a crystal, the crystal can diffract as a spatial diffraction grating of X-rays. The result of the superposition of diffraction waves makes the intensity of the rays stronger in some directions and weaker in other directions. The crystal structure can be determined by analyzing the diffraction pattern obtained on the photographic film. X-ray instruments are mainly composed of X-ray sources, optical elements, sample stage detectors and data processing systems. The central baffle is generally made of metal materials with high density and high atomic number, which can effectively absorb X-ray beams. In the actual experimental process, since X-rays have strong energy and penetrating properties, in order to prevent them from damaging the detector, a central baffle will be installed on the X-ray optical path to prevent the zero-order diffraction at the center of the X-ray beam from damaging the detector, blocking and filtering out unnecessary photon signals, and improving the signal-to-noise ratio and sensitivity of the detection. A photodiode is a semiconductor device that converts light into current through the photoelectric effect. It can be used in X-ray instruments to receive X-rays and measure data such as the energy and intensity of X-rays. During the experiment, during the adjustment of the central baffle and other optical elements, it is necessary to use it as a detector to detect the attribute data of the X-ray beam.

[0003] The center baffle and photodiode of the existing X-ray instrument appear in the device as independent devices. During the experiment, the center baffle and photodiode need to be moved by moving parts, which makes the experimental steps cumbersome and increases the difficulty of operation during the experiment. At the same time, since the position of the instrument needs to be adjusted continuously according to the experimental requirements, the error of the entire experimental result is greatly increased. Therefore, if the existing device can be successfully improved, it can reduce the experimental steps and unnecessary experimental operations. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the utility model is to embed a photodiode into the housing of a central beam blocker, and through a rotatable and adjustable rotating arm, the integrated component can meet various needs in practical applications, simplify the experimental steps, avoid unnecessary experimental errors, make the experiment more convenient, and make the experimental results more accurate.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is as follows:

[0006] An integrated component of a rotatable and adjustable photodiode and beam blocker comprises: a fixed platform, a translation platform, a second translation platform, an adapter plate, a vertical plate, a rotating arm, an L-shaped arm, a damping hinge, a photodiode and a central beam blocker. The fixed translation platform is installed on the fixed platform, the translation platform is installed with an adapter plate threadedly connected to the vertical plate, the vertical plate is fixedly connected to the second translation platform, and is threadedly connected to the L-shaped arm on the side of the second translation platform. The L-shaped arm fixes the rotating arm through the damping hinge, a central beam blocker is fixed at the end of the rotating arm, and the photodiode is embedded in the front end of the central beam blocker.

[0007] In some preferred embodiments, the fixed platform is made of a metal plate with holes punched thereon for threaded connection with the translation platform; the adapter plate has holes punched thereon for fixing the translation platform and holes punched thereon for threaded connection with the vertical plate; the vertical plate has holes punched thereon for threaded connection with the second translation platform; the limit plate has holes punched thereon for threaded connection with the L-shaped arm, and the limit plate limits the opening angle of the damping hinge.

[0008] In some preferred embodiments, the translation table top of the second translation table is connected to the L-shaped arm, and the L-shaped arm is provided with holes connected to the translation table top, holes for installing damping hinges, holes for installing limit plates, and holes for reducing weight. The number of holes for reducing weight is greater than or equal to 1, and a movable damping hinge is fixed at the lower end of the L-shaped arm, and the L-shaped arm is fixed to the rotating arm by the damping hinge.

[0009] In some preferred embodiments, the damping hinge can be fixed at a specified angle without changing its angle. In other embodiments, the damping hinge can be replaced with other angle-controllable devices, such as an electric support arm, an electronic hinge, etc.

[0010] In some preferred embodiments, a groove for installing a photodiode is reserved at the front end of the central beam blocker, a notch is reserved on one side of the groove for the data line to extend out, a slot is reserved at the rear end of the central beam blocker for inserting a rotating arm, and a top screw hole is punched on the side of the slot for fastening the rotating arm, the groove is not connected to the slot, and solid metal is provided between the groove and the slot to block the zero-order diffraction of X-rays, and the solid metal acts as a central baffle.

[0011] In some preferred embodiments, the length of the rotating arm is customized according to the experimental requirements, the rotating arm is provided with holes for installing the damping hinge, and holes for reducing the weight are provided on the rotating arm, the number of holes is greater than or equal to 1, and a cable groove is reserved on the rotating arm to facilitate the arrangement of the photodiode cable. A central beam blocker is fixed at the lower end of the rotating arm, and the photodiode is embedded in the front end of the central beam blocker. The data cable connected to the photodiode is led out from the groove notch reserved on the central beam blocker. The led-out cable is fixed along the cable groove reserved on the rotating arm.

[0012] As described above, the utility model has the following beneficial effects:

[0013] 1. The utility model designs two independent components, the photodiode and the center baffle, into one beam blocker, thus avoiding the problem of re-aligning the optical device when the independent components are disassembled and installed, reducing the steps in the experiment and avoiding unnecessary experimental errors;

[0014] 2. The utility model uses a translation stage, a second translation stage and a rotating arm to meet various needs in the experiment. When the incident direction of the X-ray changes, the zero-order diffraction can be made to hit the central baffle by adjusting the translation stage, the second translation stage and the rotating arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of an integrated component of a rotatably adjustable photodiode and beam blocker.

[0016] Figure 2 An axonometric view of an integrated component of a rotationally adjustable photodiode and beam blocker.

[0017] Figure 3 A front view of an integrated component of a rotatably adjustable photodiode and beam blocker.

[0018] Figure 4 for Figure 2 Magnified view of area A.

[0019] In the figure: 1-support plate, 2-rotating arm, 3-fixed platform, 4-translation platform, 5-second translation platform, 6-L-shaped arm, 7-damping hinge, 8-adapter plate, 9-vertical plate, 10-translation platform, 11-limiting plate, 15-detector device, 16-central beam blocker, 17-photodiode. DETAILED DESCRIPTION

[0020] The following is a detailed description of an actual embodiment of an integrated component of a rotatably adjustable photodiode and a beam blocker in conjunction with the drawings in the embodiments of the utility model. The described example is only a part of the application embodiment of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary engineers and technicians in this field without creative work are within the protection scope of the utility model.

[0021] like Figure 1 , Figure 2 As shown, the support plate 1 is a metal plate placed horizontally above the detection instrument, and holes are punched on the support plate 1 to be threadedly connected to the fixing platform 3, such as Figure 1 , Figure 2 As shown, a fixed platform 3 with holes is fixed on the support plate 1. The purpose of the fixed platform 3 is to place a translation platform 4 on it so that it can move left and right smoothly. Figure 2 The translation stage 4 shown in the figure provides the whole device with the function of left and right translation. The translation stage 4 is installed with an adapter plate 8. A hole for threaded connection with a vertical plate 9 is reserved on one side of the adapter plate 8. The vertical plate 9 provides support for the second translation stage 5 and increases the translation range of the second translation stage 5. The translation table 10 on the second translation stage 5 has a plurality of threaded holes for connection with the L-shaped arm 6. The L-shaped arm 6 has a hole for installing a data interface. The data interface can be installed on the L-shaped arm 6 or installed elsewhere to connect with the digital pole line led out of the photodiode 17. The L-shaped arm 6 has a plurality of through holes, which can reduce the weight of the L-shaped arm 6. The L-shaped arm 6 is connected to the rotating arm 2 through a damping hinge 7.

[0022] like Figure 2 As shown, the translation table 10 is fixed to the L-shaped arm 6 by threads, and a damping hinge 7 is also fixed to the lower end of the L-shaped arm 6 by threads. The damping hinge 7 allows the rotating arm 2 fixed thereon to rotate at a certain angle and stop moving after the fixed angle. When the rotating arm 2 is required to be vertical, that is, 180° with the L-shaped arm 6, the limit plate 11 installed on the L-shaped arm 6 can limit the angle of the rotating arm 2 to ensure that the angle of the rotating arm 2 is correct.

[0023] like Figure 2In the figure, area A shows the combination of the central beam blocker 16 and the photodiode 17. Figure 4 As shown, a photodiode 17 is placed at the front end of the central beam blocker 16, and a slot hole is left at the rear end for the rotating arm 2 to be inserted. The slot hole is not connected to the groove for installing the photodiode 17. There is solid metal between the groove and the slot hole to block the zero-order diffraction of X-rays. The solid metal acts as a central baffle, so the solid metal part is referred to as the central baffle below. The photodiode 17 can receive the zero-order diffraction of X-rays and is connected to the data processing system through the data cable below. The central baffle blocks the zero-order diffraction to prevent the zero-order diffraction energy from being too large to damage the detector screen of the detector device 15 behind it. After the assembly is completed, the left and right positions can be adjusted by the translation stage 4, the upper and lower positions can be adjusted by the second translation stage 5, and the rotation angle of the rotating arm 2 can be adjusted to enable the photodiode 17 to accurately receive the zero-order diffraction of X-rays. The data measured by the photodiode 17 is transmitted to the data processing system through the data cable for data processing.

[0024] During the actual use of the utility model, after the X-rays are diffracted, the data is measured by the photodiode 17. When the incident angle of the X-rays changes, the corresponding zero-order diffraction position will also change. At this time, the zero-order diffraction can be made to hit the photodiode 17 through the joint action of the translation stage 4, the second translation stage 5, the damping hinge 7, and the rotating arm 2. Since the photodiode 17 is in the central beam blocker 16, the zero-order diffraction of the X-rays passing through the photodiode 17 will be blocked by the central beam blocker 16, thereby achieving the effect of protecting the detector screen. The damping hinge 7 can be replaced with an electric or pneumatic hinge device that can remotely control the angle.

[0025] Finally, it should be noted that the above-mentioned examples are preferred examples of the present invention and do not limit the present invention. Any modification equivalent to replacement, improvement, etc. made within the spirit and scope of the present invention should be included in the content of the present invention.

Claims

1. An integrated component of a rotatably adjustable photodiode and a beam blocker, characterized in that: The integrated components include: a fixed platform, a translation platform, a second translation platform, an adapter plate, a vertical plate, a rotating arm, an L-shaped arm, a damping hinge, a photodiode and a central beam blocker. The fixed translation platform is installed on the fixed platform, the translation platform is installed with an adapter plate threadedly connected to the vertical plate, the vertical plate is fixedly connected to the second translation platform, and is threadedly connected to the L-shaped arm on the side of the second translation platform. The L-shaped arm fixes the rotating arm through the damping hinge, a central beam blocker is fixed at the end of the rotating arm, a photodiode is embedded in the front end of the central beam blocker, and a limit plate is installed on the L-shaped arm.

2. The integrated component of a rotatably adjustable photodiode and a beam blocker according to claim 1, characterized in that: The fixed platform is made of a metal plate and is punched with holes for threaded connection with the translation platform; the adapter plate is punched with holes for fixing the translation platform and is punched with holes for threaded connection with the vertical plate; the vertical plate is punched with holes for threaded connection with the second translation platform; the limit plate is punched with holes for threaded connection with the L-shaped arm, and the limit plate limits the opening angle of the damping hinge.

3. The integrated component of a rotatably adjustable photodiode and a beam blocker according to claim 1, characterized in that: The L-shaped arm is provided with holes connected to the translation table, holes for installing damping hinges, holes for installing limit plates, and holes for reducing weight, and the number of holes for reducing weight is greater than or equal to one.

4. The integrated component of a rotatably adjustable photodiode and a beam blocker according to claim 1, characterized in that: The damping hinge can be fixed at a specified angle without any angle change.

5. The integrated component of a rotatably adjustable photodiode and a beam blocker according to claim 1, characterized in that: A groove for installing a photodiode is reserved at the front end of the central beam blocker, a notch is provided on one side of the groove for the data line to extend out, a slot is reserved at the rear end of the central beam blocker for inserting a rotating arm, and a top screw hole is punched on the side of the slot for fastening the rotating arm.

6. The integrated component of a rotatably adjustable photodiode and a beam blocker according to claim 1, characterized in that: The rotating arm is provided with holes for installing the damping hinge, and holes for reducing weight are also provided thereon, the number of the holes is greater than or equal to 1, and a cable groove is reserved on the rotating arm.

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